CalEPPC A quarterly publication of the California News Exotic Pest Plant Council Volume 9 • Number 3/4 • 2001

Giant salvinia (Salvinia molesta) Closeup picture from The Nature Conservancy’s Weeds-on-the- Also In This Issue Web Homepage (http://tncweeds.ucdavis.edu). Symposiums & Transitions 3 See 2001 Red Alerts this issue. 2001 Red Alerts 4 Hypericum Alert 6 Keep It in the Garden 7 Cape Ivy Germinating in California & Oregon 8 CalEPPC Seeks Executive Director 10 Membership form 12 CalEPPC News Page 2 Spring 2001 Who We Are 2002 CalEPPC Officers & Board Members CalEPPC NEWS is published quarterly Officers by the California Exotic Pest Plant President Joe DiTomaso [email protected] Council, a non-profit organization. The Vice-president Steve Schoenig [email protected] objects of the organization are to: Secretary Mona Robison [email protected] • provide a focus for issues and Treasurer Becky Waegel [email protected] concerns regarding exotic pest plants Past-president Mike Kelly [email protected] in California; At-large Board Members • facilitate communication and the Carl Bell* [email protected] exchange of information regarding all Matt Brooks** [email protected] aspects of exotic pest plant control Carla Bossard** [email protected] and management; Paul Caron* [email protected] • provide a forum where all interested Tom Dudley** [email protected] parties may participate in meetings Dawn Lawson** [email protected] and share in the benefits from the Alison Stanton** [email protected] information generated by this Scott Steinmaus* [email protected] council; Peter Warner* [email protected] (wk) [email protected] (hm) • promote public understanding Bill Winans* [email protected] regarding exotic pest plants and their control; * Term expires Dec. 31, 2002 / **TerMs expires Dec. 31, 2003 • serve as an advisory council Working Group Chairpersons regarding funding, research, Artichoke thistle Mike Kelly 858-566-6489 [email protected] management and control of exotic pest plants; Arundo Tom Dudley 510-643-3021 [email protected] Brooms Karen Haubensak 510-643-5430 [email protected] • facilitate action campaigns to monitor Cape ivy Mona Robison 916-451-9820 [email protected] and control exotic pest plants in California; and Cortaderia spp. Joe DiTomaso 530-754-8715 [email protected] Fennel Jennifer Erskin 530-752-1092 [email protected] • review incipient and potential pest Lepidium Joel Trumbo 916-358-2952 [email protected] plant management problems and activities and provide relevant Saharan mustard Jim Dice 760-767-3074 [email protected] information to interested parties. Saltcedar Bill Neill 714-779-2099 [email protected] Spartina spp. Debra Ayres 530-752-6852 [email protected] Veldt grass Dave Chipping 805-528-0914 [email protected] .edu Volunteers Maria Alvarez 415-331-0732 Yellow starthistle Mike Pitcairn 916-262-2049 [email protected] CalEPPC web site: www.caleppc.org CalEPPC News Editor: Mike Kelly (see above for address) Submissions for CalEPPC News If you’d like to submit a news item, article, meeting announcement, or job opportunity for publicaton in the CalEPPC News, it must be sent in Please Note: both electronic and hard copy forms to the editor. The editor reserves the right to edit all submissions. Send your text/disk/email to edtior's The California Exotic Pest Plant address above. Council is a California 501(c)3 non-profit, public benefit corporation organized to provide a The articles contained herein were contributed to the CalEPPC focus for issues and concerns newsletter. These articles represent the opinions of the authors regarding exotic pest plants in and do not necessarily reflect the views of CalEPPC. Although California, and is recognized under herbicide recommendations may have been reviewed in federal and state tax laws as a contributed articles, CalEPPC does not guarantee their accuracy qualified donee for tax deductible with regard to efficiency, safety, or legality. charitable contribution. CalEPPC News Page 3 Spring 2001 10th Anniversary Symposium & Transitions Mike Kelly

CalEPPC’s 10th Anniversary presidents who were in attendance, Symposium, held in San Diego this including John Randall, Carla Bos- past October, was noteworthy in sard, and Mike Pitcairn, that it several respects. First, some 230 peo- struck me we were in a big transi- ple registered for the event despite tion for the organization. On the the proximity to Sept. 11th, the un- one hand we had announced we certainties of air travel, and agency wanted to hire an Executive Direc- (and personal) budget cutbacks. tor, our first paid position for the The desert-themed sessions of group. On the other hand, our the symposium succeeded in attract- Board no longer had a majority of ing participants from the desert “old-timers,” volunteers who had southwest. This was an important founded CalEPPC at our first sym- goal of CalEPPC, to highlight desert posium at Moro Bay in 1992 and issues and seek ways to form part- served on the Board of Directors, of- nerships amongst desert land man- ten for many years. Over the years agers and conservationists. From the since we’ve had a normal attrition U.S. Geological Survey friday morn- from the Board, losing founders ing sessions through the afternoon’s such as Greg Archbald, Ann How- lively desert organization presenta- ald, John Randall, Sally Davis, Nel- tions and panels to the evening’s roy Jackson and others. Most re- desert workshop, I think we succeed- main active as members and remain ed in plumbing the ecological and or- active in weed affairs. ganization issues of the desert re- gions. I expect significant colla– Outgoing president Mike Kelly borations will flow from this jam- enjoying a lighter moment at the packed first day of the CalEPPC annual business meeting. Symposium. Saturday’s sessions found us back on familiar California turf with a series of talks on signifi- The transition is bringing in cant weed issues and related re- younger blood, younger than the search and more of the species specif- original Board. Typically they’re ic weed workshops that are always graduate students who’ve cut their so popular at the conferences. eye teeth on wildland weed issues. Transitions I wondered about this “younger” Our annual business meeting is blood a bit until we had our annual always held Saturday, in a session Board dinner. At the end of day where we announce the results of each Saturday at our annual sym- the elections, hear first alert reports posium we’re in the habit of treat- from The Nature Conservancy’s ing ourselves to a collective dinner Mandy Tu and John Randall, and together where old and new Board get updates on our Cape ivy and In- members get to mix a bit socially ternational Broom Initiatives, and a and get to know each other. We national report from Nelroy Jack- were about half-an-hour and at son, a member of the National least one beer into this year’s din- Weed Council and National EPPC. ner at a local San Diego brewery This business meeting was a bit when I delighted in the realization different though. I introduced new- that several of these younger Board ly elected members of the Board of members were animatedly and con- Directors and the new officers. It Incoming president Joe DiTomaso fidentally holding forth on weed is- was when I was introducing past leading a workshop at Symposium. sues with “veterans.” YES . . . . CalEPPC News Page 4 Spring 2001 2001 Red Alert! New Expansions into and around California Mandy Tu and John M. Randall

[The authors can be reached at: ly fill the water-column. C. carolinia- from disturbed roadsides into dry The Nature Conservancy Wildland na is listed as a noxious weed in shaded slopes under an oak wood- Invasive Species Program, Dept. of Washington State, and is now a land canopy. Fred Hrusa (CDFA) Vegetable Crops & Weed Sciences, dominant in some Sacramento Riv- adds that he has specimens of E. Univ. of Calif., Davis, CA 95616. er delta locations (Hrusa et al. in oblongata in the Sierra Nevada up to Phone: 530-754-8891; FAX: 530-752- mss.). Joe DiTomaso of U.C. Davis 4,000 feet in elevation at the CDFA 4604]. E-mail: [email protected]; reports seeing C. caroliniana in Le- Botany Herbarium. The 2001 CalEPPC Red Alert! wiston Lake in Trinity County Lavatera cretica (smaller tree- for this year again provides an ac- (northern California), but there are mallow) is an annual or biennial count of species that are either new no specimens from this location herb in the Malvaceae (mallow fam- to California and have the potential confirming this sighting. ily) which was described in the Jep- to become widely invasive, or up- Euphorbia oblongata (eggleaf or son Manual (Hickman 1993) as un- date reports on already-established oblong spurge) is a perennial herb common in the central and south species that are rapidly expanding in the Euphorbiaceae (spurge fami- coast regions. CalFlora documents their range(s) in the state. Many of ly) native to Europe. It is already la- L. cretica as present along most of these species are already known to beled as a noxious weed (Rated B the California coast. Southern Cali- be invasive in other areas and could by CDFA) of waste places in the fornian botanist Carl Wishner re- become troublesome in California. Jepson Manual (Hickman 1993), ports that L. cretica is well-distri– The Red Alert! for 2001 includes which lists E. oblongata as present buted along the coast and along five species that are newly invasive only in the Central Valley and the roads in southern California from to California (or specific areas with- San Francisco Bay area but expected the Malibu Civic Center west to in California) and three updates. Be to be elsewhere. CalFlora indicates Zuma Canyon. He adds that he has sure to look for updates on new that this species has also been docu- even seen a few plants along the non-native species in CalEPPC mented along the central California main roads leading over the Santa News, the Noteworthy Collections coast and inland. Dean Kelch (UC Monica Mountains. section of the journal Madroño, and Berkeley) reports E. oblongata is also Hedera canariensis (Algerian ivy) on The Nature Conservancy’s now common from the Berkeley is a sprawling woody vine in the Weeds-on-the-Web Homepage Hills area north to the Carquinez Araliaceae (ginseng family), and it (http://tncweeds.ucdavis.edu). Strait, and that it is able to spread is often mistaken as Hedera helix Newly detected species with potential to be natural area invaders Cabomba caroliniana (cabomba, Carolina fanwort) is an aquatic per- ennial herb in the Cabombaceae (watershield family) which can be distinguished by its dimorphic leaves. It has floating leaves that are shield-shaped and submerged leaves that are fan-shaped and deeply dissected. It is native to the eastern United States and has been present in California since at least 1980 (L. Anderson, in Hrusa et al. in mss.). C. caroliniana is a very popu- lar plant in the aquarium industry and is of concern because it is able Giant salvina (Salvinia molesta) infestation. Picture from The Nature Conservancy’s Weeds-on-the-Web Homepage (http:// to spread rapidly and can complete- tncweeds.ucdavis.edu). CalEPPC News Page 5 Spring 2001

(English ivy). It has larger leaves being eradicated from the San Joa- is still ongoing. Steve Schoenig of with fewer lobes than H. helix, al- quin Valley in Fresno County in the CDFA reports that H. verticillata has though some naturalized forms of Jepson Manual (Hickman 1993), but recently been found in Yuba H. canariensis are apparently mor- an infestation covering a large area County, Calaveras County, and the phologically indistinguishable from just off of I-5 near Tracy was recent- Redding area of California, but these H. helix. H. canariensis is commonly ly discovered. The CalFlora data- infestations are not too large and sold as an ornamental or as ground base (information obtained from should be manageable. H. verticillata cover. Its leaves can be completely CDFA Botany Lab) now documents has also recently been reported from green or variegated in color. It is of this species in 7 counties in Califor- the Tucson area in Arizona. particular concern because it is able nia. Joe DiTomaso adds that A. References to invade relatively undisturbed brachychaetum has both outcrossing CalFlora: Information on California forest understories. Hrusa et al. (in flowers and basally-located cleis- plants for education, research and mss.) states that it occurs through- togamous flowers and that there- conservation. [web application]. 2000. out the Bay Area where it is prob- fore, mowing alone is not an effec- Berkeley, California: The CalFlora ably even more common than H. he- tive means to control this grass. Database [a non-profit organization]. lix, and it has also been Salvinia molesta (giant salvinia) Available: http://www.calflora.org/. (Accessed: Fri. Seep 21 15:28:44 PET documented from both the San Ber- is a floating, aquatic herb in the Sal- 2001) nardino and San Gabriel Mountains viniaceae (a fern family). It is a very DiTomaso, J. 2001. Personal in southern California. popular aquarium plant, and even communication. Department of Saccharum ravennae (Ravenna though it is a federally-listed nox- Vegetable Crops & Weed Sciences, grass) is a perennial bunchgrass in ious weed and every county within University of California at Davis. Hickman, J.C. (ed.) 1993. The Jepson the Poaceae (grass family). This spe- California is trying to restrict its Manual: Higher Plants of California. cies is native to Eurasia and is often sale, S. molesta is still widely sold. S. UC Press, Berkeley. mistaken as pampas grass or jubata- molesta has the capability of over- Hrusa, G.F. 2001. Personal grass (Cortaderia selloana & C. juba- taking large areas of aquatic habi- communication. Botany laboratory ta). S. ravennae has attractive, tall tat, and has been reported from sev- herbarium (CAD), Plant Pest (up to 3 meters) pluming inflores- eral sites in southern California. It is Diagnostics Branch, California Department of Food & Agriculture. cences and is frequently planted as listed on CalEPPCs 1999 exotic Hrusa, G.F., Ertter, B., Sanders, A., a showy ornamental. In the Grand plant list and is expanding its range Leppig, G. and E.A. Dean. 2001. Canyon, the National Park Service in California. Hrusa et al. (in mss.) Manuscript in review. has been trying to control this inva- reports that it is now well- Kelch, D. 2001. Personal sive species since 1993. In Califor- established in aquatic habitats in communication. Jepson Herbarium, University of California at Berkeley. nia, S. ravennae has been document- Imperial, Riverside, and San Diego Leavitt, R. 2001. Personal ed in the southern Sonoran Desert counties, and that control efforts communication. California (Imperial County) where it is have been very effective in control- Department of Food & Agriculture. invasive in ditchbanks and marsh- ling and sometimes even eradicat- USDA, NRCS. 2001. The PLANTS es. Fred Hrusa (pers. comm.) re- ing this species from canals. Database, Version 3.1 ports that the Botany Herbarium at Hydrilla verticillata (hydrilla) is (http://plants.usda.gov). National Plant Data Center, Baton Rouge, LA CDFA has specimens of S. ravennae an aquatic perennial herb in the Hy- 70874-4490 USA. in Sutter County from the 1970s, drocharitaceae (waterweed family), Schoenig, S. 2001. Personal and also mentioned that the genus and is a federally-listed and Califor- communication. California Saccharum is sometimes also called nia-listed noxious weed. It’s also al- Department of Food & Agriculture. Erianthus. Recently, Joe DiTomaso ready on CalEPPCs Red Alert list. It Wishner, C. 2001. Pers. commun. Envicom Corporation. reported that there are rapidly ex- was found in Clear Lake (Lake panding populations of S. ravennae County, CA) in the early 1990s and in Cache Creek preserve in Yolo the California Department of Food County (Northern California). and Agriculture (CDFA) has been working diligently since 1994 to Updates eradicate it from this site in order to Achnatherum brachychaetum (Ar- prevent it from spreading. Robert gentine needlegrass or punagrass) Leavitt of CDFA reports that the Hy- is a tufted perennial grass (Poaceae) drilla Eradication Program has been that has already been listed in Cali- very successful in reducing the bio- fornia and in Arizona for some time mass and number of hydrilla plants as a noxious weed. It was listed as in Clear Lake, and that the program Salvinia molesta closeup of leaf. CalEPPC News Page 6 Spring 2001

Weed Alert! Hypericum canariense L. (Canary Island St. Johnswort) Mandy Tu

Summary tion cover, and it outcompetes and excludes both the na- Hypericum canariense has recently been observed in- tive scrub vegetation (Baccharis spp., Toxicodendron di- vading natural areas in San Mateo, Santa Barbara and versilobum) as well as other non-native vegetation such San Diego counties in California. It’s thought to have as jubatagrass (Cortaderia jubata). The only native plants escaped from cultivation (CDFA 2001), as it has traits that persist after H. canariense invasions are trees that desirable to horticulturists (i.e. attractive, ornamental are over 1.5 m tall (J. Wade, personal communication). foliage and large, bright orange flowers). Native to the In favorable conditions, infestations of H. canariense can Canary Islands, it’s been found growing in the wild in spread at a rate of up to 45-90 meters per year. disturbed places, coastal sage scrub, and in grassland Native Range habitats up to 100 meters in elevation in coastal areas H. canariense is native to the Canary Islands, where of California. H. canariense has the potential to extend it is often located in xerophytic scrub or forested zones, its range inland from its present coastal distribution. from 150 to 800 meters in elevation. It can be very com- Description mon locally (Bramwell & Bramwell 1974). Hypericum canariense is a shrub in the Hypericaceae Range as an Invader (formerly Clusiaceae) – St. Johnswort family. H. cana- In North America, H. canariense occurs as an invad- riense can grow up to 5 meters tall and has simple, oppo- er in Hawaii and in California (USDA-NRCS 2001). site leaves that are oblong-lanceolate, with tapered bas- Previous reports from California list this species as be- es. They range in size from 2 to 7 cm long. The yellow- ing present only in San Diego and Santa Barbara orange flowers are large and showy with petals (12 to 15 counties in southern California (CalFlora 2001). The mm in size) and stamens that persist after flowering. Jepson Manual: Higher Plants of California (Hickman The sepals are ovate with pointed tips and have ciliate 1993) lists the species as uncommon in disturbed places hairs along their margins. The fruits are leathery cap- below 100 m in the South Coast subregion of the state. sules that open at maturity (Hickman 1993). It’s current- In San Diego, H. canariense has escaped cultivation as ly not widely grown as a garden or landscape plant. A an ornamental near the Point Loma military cemetery web search in November 2001 revealed that it’s kept at (M. Kelly, pers. comm.). the Los Angeles Arboretum and seeds are offered for sale on the internet (Platt 2001), but on the whole the Continued on page 10 plant doesn’t seem to be widely offered at wholesale or specialty nurseries in N. America. Scientific and Common Names The genus name Hypericum is derived from the Greek hyper, meaning over, and eikon, meaning an icon or apparition (over an apparition). It was thought to have been able to protect one from evil spirits and has been used in several Greek names such as Hyperion or Hyperides. The species epithet canariense means “of the Canary Islands”. The common name of St. Johnswort is from its association of St. John the Baptist. There are currently no accepted synonyms for H. canariense. Impacts The overall impacts of this new invader are un- known, but H. canariense appears to outcompete and ex- clude nearly all other vegetation once it has invaded. In coastal California areas that have become infested, H. canariense can comprise up to 90 to 100% of the vegeta- Hypericum canariense flowers and leaves CalEPPC News Page 7 Spring 2001

Keep It in the Garden Developing a List of Non-invasive Alternatives To Replace Invasive Horticultural Species in California Alison E. Stanton

The Problem and promote voluntary guidelines on handling known It’s estimated that nearly 40% of the species on the invasive species within the nursery industry. A cam- U.S. Department of Interior’s endangered and threat- paign slogan, “Keep it in the Garden,” has already ened list are at risk from alien invaders. Public aware- been adopted in preliminary meetings. The program ness of this critical environmental problem is still rela- will target growers, nursery retailers, commercial us- tively low. Consequently, plants with known invasive ers, and the gardening public. tendencies are for sale in nurseries in areas where they CalEPPC has received a grant of $15,000 from En- have already escaped or have the ecological potential vironmental Defense to develop educational materials for spread. for the “Keep It in the Garden” campaign. I wrote the The horticultural trade is a significant path of intro- grant application and will be primarily responsible for duction for many of our worst plant invaders. Faith implementing the project. I received my MS in Horti- Campbell of the American Lands Alliance compiled a culture and Agronomy through the Weed Science Pro- list of 452 “worst invasive plant species in the conter- gram at U.C. Davis where I conducted my thesis re- minous US” and found that 271 species or 60% were search on pampasgrass and jubatagrass, which I for sale through Andersen’s Horticultural Library. For presented at the 2000 CalEPPC Symposium. example, pampas grass (Cortaderia selloana) is available I plan to convene an initial workshop composed of in many California nurseries despite the fact that land academic horticulturists, scientists from the Weed Re- managers in coastal regions often cite these aggressive search Information Center at U.C. Davis, California Ag- plants as a top management concern. ricultural Commissioners, and representatives from Invasive horticultural stock is not a new problem, CAN, CA Department of Food and Agriculture, and but noxious weed policies and regulations have not CalEPPC. Workshop participants will address the crite- caught up. Current weed management regulations in ria for determining whether a plant is invasive. The ini- California only target noxious weeds that are listed in tial goal will be to identify a list of currently available either the Federal Noxious Weed Act or the CA Depart- ornamental plants, by region of the state, which invade ment of Food and Agriculture noxious weed list. Many natural areas that should not be sold in nurseries in invasive plant species, especially those that primarily California. The list will be compiled from plants ap- invade natural areas, are not listed. There is a pro- pearing on the CalEPPC “List of Exotic Pest Plants of nounced emphasis within weed management on the Greatest Ecological Concern in California.” control of incipient weed infestations with much less The state will be divided into a number of geo- attention paid to prevention. No mechanism exists in graphic zones and each species assigned to the zones the current framework for controlling the propagation, where it is known to invade or has the significant po- distribution, and sale of unlisted species with known tential to spread. Identified plants will be categorized invasive tendencies. according to standard horticultural criteria such as A rigorous education campaign is required to com- growth habit, hardiness zone, appropriate landscape bat further releases and introductions of invasive exotic uses, and propagation methods. Based on these horti- plants into California’s natural landscapes. It’s critical cultural criteria, the working group will determine to develop regional lists of invasive ornamental plants non-invasive alternatives for each plant on the list. that should not be sold in California. It’s equally im- Thus, the list of alternatives will enable nursery indus- portant to provide non-invasive alternatives that will try members, commercial users, and the gardening help nursery owners make an informed decision to sell public to select the "right plant for the job," while mini- non-invasive substitutes in place of known invasive mizing the risks of garden escapes. species. A major goal of this project is to establish some guidelines that address a serious environmental prob- The Solution lem in an arena where no policy exists. The California The California Exotic Pest Plant Council (CalEPPC) horticulture industry is a major economic force and an is prepared to work with the California Association of Nurserymen (CAN) and other stakeholders to adopt Continued on page 11 CalEPPC News Page 8 Spring 2001

Help needed in collecting more seed Cape Ivy Germinating in California and Oregon Ramona Robison

[Note: this is a followup article to dispersed. If viable seed production the Spring 2001 CalEPPC News arti- is found in only some of the cle on Cape Ivy.] populations within a managed area, Cape ivy (Delairea odorata) seeds those should be the highest priority collected in February and March, for eradication. These studies are 2001, from throughout California preliminary and more seed and Oregon were tested for germi- collection and testing is planned for nation potential under greenhouse the winter of 2001-2002. For more conditions. Twenty large, filled information contact Ramona seeds were selected and then plant- Robison at 916-442-5074 or ed in pots of moist soil which were [email protected]. watered by overhead misters in a greenhouse. The greenhouse tem- perature range during the experi- ments was between 15 and 34ºC (59.6 and 94ºF). Seeds sprouted between 6 and 31 days after planting, and all the seed locations tested eventually ger- minated (see photographs and ta- ble). While this study did not test the un-filled seed from all locations collected, it does prove that Cape ivy is producing germinable seed throughout its range in California and Oregon. The method used to test seed germination was not diffi- cult and could be used by volun- teers and resource managers to test whether their individual popula- tions are producing germinable seed. The method for testing a pop- ulation for germinable seed produc- tion requires collecting ripe seed and drying it in paper bags kept at room temperature, separating large, Cape ivy locations. Point above California map is Curry County, Oregon. filled seeds from the rest of the flowering material, placing those seeds in pots of moist potting soil, and watering with a light mist daily Election Note for a few weeks to determine whether seeds will sprout. Col. Val Prehoda was unable to take her seat on Ca- The production of germinable lEPPC’s Board because of a job promotion to Alaska! Cape ivy seed has practical implica- Also, Joe Balciunas resigned his seat upon recommenda- tions for its management and con- tion of his employer since CalEPPC raises Cape ivy funds trol in California. Before developing that go to his employer. Under the Bylaws, the Board ap- a management strategy, a popula- pointed Peter Warner and Scott Steinmaus to fill their tion should first be tested for seed seats for 2002, at which time a new election will be held. viability as Cape ivy seeds are wind CalEPPC News Page 9 Spring 2001

Locations of Germinable Cape Ivy Seed Collected in February and March, 2001 (all locations but one in California)

Lot # County Location 1 San Diego Bonsall Preserve 2 Los Angeles San Dimas Canyon 3 Los Angeles Glendale, Elinita Rd. 4 Los Angeles Monrovia Canyon 5 Los Angeles Palisades Drive 7 Los Angeles Will Rogers State Historic Park, below entrance 8 Los Angeles Temescal Canyon 9 Los Angeles Will Rogers State Historic Park, near entrance 11 Curry County, Oregon Pistol River Schoolhouse 12 Marin Rodeo Valley Creek, GGNRA 13 Marin Rodeo Valley Maintenance Station 14 San Francisco Presidio off Battery, just over Golden Gate Bridge 16 San Mateo McNee Ranch south of Pacifica 17 Monterey San Jose Creek near Pt. Lobos 18 Monterey Gibson Creek, Pt. Lobos 19 Santa Cruz Pajaro River 20 Santa Cruz Watsonville Slough off San Andreas Rd. 25 Monterey Elkhorn Slough near Moss Landing powerplant 26 S. L. Obispo Chorro Flats in Morro Bay State Park 27 San Mateo San Bruno Mountain, bottom 49 Humboldt McKinleyville, School Road .5 miles west of Central Ave. 50 S. L. Obispo High Street, San Luis Obispo

Cape ivy seed

Cape ivy seedlings CalEPPC News Page 10 Spring 2001

Job Announcement Part Time Executive Director for CalEPPC

The Board of Directors of the California Exotic Pest enhance the scientific basis and programs at the lo- Plant Council invites applications for the half -time po- cal, state, and federal level. sition of Executive Director of the Council. The Execu- Qualifications: We seek candidates who have dem- tive Director will manage the Council’s operations from onstrated ability in: administration of organizations, fis- the successful candidate’s home town. The Council has cal management, fund raising, membership building; an annual operating budget of $100,000. The Executive understanding of non-profit organization; strong writ- Director reports directly to the President of the Board of ten and verbal communication skills; outstanding inter- Directors and has four primary areas of responsibility: personal skills. Preference will be given to those indi- 1. Development of fund raising program to encourage viduals with an advanced degree and related work support from foundation, corporate, and private experience in a invasive weed management oriented entities. field. The successful candidate should have excellent problem solving abilities and be capable of working in- 2. Responsibility for directing the business and finan- dependently and without direct supervision. cial affairs of the Association. This includes: day- Salary and anticipated start date: The salary and to-day administrative tasks; membership and sub- benefits offered is $24,000 to start. The successful can- scriptions; oversight of the managing editor and didate will be encouraged to grow the position into a journal operations, and office staff; implementation full-time position. We anticipate a starting date of of the annual work plan; staff development; news- April 1, 2002. letter; completion of strategic plan. Please send application materials in both electronic 3. Serve as liaison to local CalEPPC annual sympo- and hard copy formats, including a letter of interest, re- sium organizers and provide administrative or lo- sume, and names and addresses of 3 references to: Ca- gistic support; support the development of region- lEPPC Search Committee c/o Joe DiTomaso at: UC Da- al, international workshops, special projects, and vis Weed Science Program, 210 Robbins Hall, Davis, publications. CA 95616 or email to: [email protected]. Appli- 4. Promote the field of invasive weed management to cation must be received by February 15, 2002.

(Hypericum cont’d) In San Mateo County in north- manually remove with a weed References ern California, H. canariense current- wrench unless the ground is very Bramwell, D. and Z. Bramwell. 1974. ly covers approximately 25 to 40 soft because of its large root system. Wildflowers of the Canary Islands. hectares (62-99 acres) near Gazo Such mechanical approaches may Stanley Thornes, Ltd., London. CDFA. 2001. California Department of Creek (J. Wade, pers. comm.). John not be successful unless the entire Food and Agriculture-Weed Manage- Wade of the Pescadero Conserva- root and stem portions are com- ment (http://pi.cdfa.ca.gov/ tion Alliance reports that there are pletely removed, as it may resprout weedinfo/HYPERICU2.html) several populations of H. canariense (J. Wade, pers. comm.). Hickman, J.C. (ed.). 1993. The Jepson along the coast, and that they are all Mike Kelly (personal communi- Manual: Higher Plants of California. University of California Press, Berke- rapidly expanding in range. cation) has been successful control- ley. ling H. canariense by using the cut- Reproduction and Methods of Kelly, M. 2001. California Exotic Pest stump herbicide application meth- Plant Council. Personal communica- Dispersal od. He first cut the stems with a tion. H. canariense produces large chainsaw, then applied the herbi- Platt, K. 2001. The Seed Search (http:// amounts of viable seed. Many seed- cide glyphosate (brand name www.seedsearch.demon.co.uk/), site accessed November 2001. lings have been found just down- RoundUp®) at full strength to the slope of mature shrubs in San Die- USDA, NRCS. 2001. The PLANTS Da- cut-stump. Mike suspects that a tabase, Version 3.1 (http:// go County (M. Kelly, pers. comm.). less-concentrated solution of herbi- plants.usda.gov). National Plant Data Control cide might also be effective, but has Center, Baton Rouge, LA 70874-4490 not tested the efficacy of differing USA. Little information is available Wade, J. 2001. Pescadero Conservation on successful control methods for amounts of herbicide on H. cana- Alliance. Personal communication. H. canariense. It could be difficult to riense control. CalEPPC News Page 11 Spring

(Keep It in Garden cont’d) plants only in areas where they are cult to assess in monetary terms. known invaders. Others view any A list of non-invasive alterna- important stakeholder in any poli- attempt to impose restrictions on tives will be a valuable educational cymaking regarding the sale and the sale of currently unregulated tool to open up dialogue between distribution of ornamental plants. plants as an infringement on their horticulturists and weed scientists According to the USDA Economic business. on how an invasive ornamental is Research Service (ERS) the environ- There is little information on the defined. Providing alternatives to mental horticulture and floriculture economic impact of curtailing sales invasive ornamentals is an easy and industry is the fastest growing sec- of invasive ornamentals. One rea- effective way to address the prob- tor of US agriculture, with $12.1 bil- son is that the exact proportion of lem immediately. Efforts to imple- lion in sales in 1998. The California horticultural stock that can be con- ment governmental regulations are industry alone generated over $2.4 sidered invasive is up for debate. unlikely to be successful and will be billion in revenues, producing 20% No consensus exists on the criteria time consuming and expensive. As of the total U.S. nursery crop pro- for determining whether a plant is part of the “Keep It in the Garden” duction (followed by Florida (11%), invasive and it is therefore difficult campaign, the list will help to raise North Carolina and Texas (8%)). to determine the economic impacts public awareness of the serious en- Industry members are strongly of not selling certain invasive orna- vironmental threat of invasive spe- opposed to implementing statewide mentals. However, it is equally dif- cies. Anyone interested in partici- or national bans on any plant spe- ficult to determine the consequenc- pating in the project in any capacity cies that do not appear on noxious es of continuing to sell the plants should contact Alison at her home weed lists. Many are willing to ac- because plant invaders in natural office (415.379.9086) or at traver- cept voluntary local restrictions on ecosystems cause harm that is diffi- [email protected]

Special Offer Continued — $5 Off Invasive Plants of California’s Wildlands edited by: Carla C. Bossard, John M. Randall, & Marc C. Hoshovsky

------Order Form (Please print) ------Send order form to: KW Publications, POB 26455, San Diego CA 92196. Or call 858-566-6489 or Fax 858-271-1425 or email [email protected]. Profits from each book sold go to CalEPPC. MC / Visa excepted Qty. _____ Invasive Plants of California’s Wildlands at $24.95 each ($29.95 less $5 off = $24.95). _____ Sales tax for California residents: $1.93 for each book. _____ Shipping and handling, $5.00 for first book, $2.00 each additional book. _____ $ 31.88 Total for order, including sales tax and shipping Name ______Org. ______P.O. ______Street ______City ______State _____ Zip ______Phone ______Email ______Visa, MasterCard. Card #: ______Exp. date (month/year): ___/___ Name as it appears on card (if different from above): ______

CalEPPC Membership Form

If you would like to join CalEPPC, please remit your calendar dues using the form provided below. All members will receive the CalEPPC newsletter, be eligible to join CalEPPC working groups, be invited to the annual symposium and participate in selecting future board members. Your personal involvement and financial support are the keys to success. Additional contributions by present members are welcomed!

Individual Institutional ______❑ Low Income* $15 N/A Name ❑ Regular 30 ❑ Regular $100 ❑ Family 40 ❑ Contributing 250 ______❑ Contributing 50 ❑ Patron 500 Affiliation ❑ Sustaining 100 ❑ Sustaining 1000 ❑ Lifetime 1000 ______Address * Includes students ______Please make an additional contribution in my name to: City/ State/ Zip Student/Low Income membership $______Cape Ivy Biocontrol Fund $_____ Office Phone Home Phone

Please make your check payable to CalEPPC and mail ______with this application form to: Fax email CalEPPC Membership c/o Sally Davis *Students, please include current registration and/or class schedule 32912 Calle del Tesoro San Juan Capistrano, CA 92675-4227

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