DOCSLIB.ORG

Antennal Responses of the Western Pine Beetle, Dendroctonus Brevicomis

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Antennal Responses of the Western Pine Beetle, Dendroctonus Brevicomis 378.qxd 10/30/2007 6:36 PM Page 209 Chemoecology 17: 209–221 (2008) 0937-7409/07/040209-13 CHEMOECOLOGY © Birkhäuser Verlag, Basel, 2007 DOI 10.1007/s00049-007-0378-8 Antennal responses of the western pine beetle, Dendroctonus brevicomis (Coleoptera: Curculionidae), to stem volatiles of its primary host, Pinus ponderosa, and nine sympatric nonhost angiosperms and conifers William P. Shepherd1, Dezene P. W. Huber2, Steven J. Seybold3, and Christopher J. Fettig4 1Southern Pine Beetle: Ecology, Behavior, and Management, Southern Research Station, USDA Forest Service, 2500 Shreveport Highway, Pineville, LA 71360 USA 2Natural Resources and Environmental Studies Institute, Ecosystem Science and Management Program, University of Northern British Columbia, 3333 University Way, Prince George, BC V2N 4Z9 Canada 3Chemical Ecology and Management of Forest Insects, Pacific Southwest Research Station, USDA Forest Service, 720 Olive Drive, Ste. D., Davis, CA 95616 USA 4Chemical Ecology and Management of Forest Insects, Pacific Southwest Research Station, USDA Forest Service, 1107 Kennedy Place, Ste 8, Davis, CA 95616 USA Summary. Stem volatile extracts from ten trees that are verbenone was identified from a number of nonhost sympatric with the western pine beetle, Dendroctonus brevi- conifers; and chalcogran was identified from P. tremuloides. comis LeConte (Coleoptera: Curculionidae) were assayed The number of nonhost volatile chemicals that D. brevi- by gas chromatographic-electroantennographic detection comis encounters and is capable of detecting, and the diver- analysis (GC-EAD). The extracts were from the primary sity of sources from which they emanate, highlight the host, ponderosa pine, Pinus ponderosa Dougl. ex Laws. complexity of the olfactory environment in which D. brevi- (Pinaceae); two nonhost angiosperms, California black oak, comis forages. This provides a basis for further work related Quercus kelloggii Newb. (Fagaceae), and quaking aspen, to chemically-mediated aspects of foraging in this insect and Populus tremuloides Michx. (Salicaceae); and seven non- perhaps other coniferophagous bark beetles, and highlights host conifers, white fir, Abies concolor (Gord. & Glend.) the need to consider foraging context in the design and Lindl. ex Hildebr. (Pinaceae), incense cedar, Calocedrus implementation of semiochemical-based management tac- decurrens (Torr.) Florin (Cupressaceae), Sierra lodgepole tics for tree protection. pine, P. contorta murrayana Grev. & Balf. (Pinaceae), Jeffrey pine, P. jeffreyi Grev. & Balf. (Pinaceae), sugar pine, Key words. Insecta – Coleoptera – Curculionidae – P. lambertiana Dougl. (Pinaceae), Douglas-fir, Pseudotsuga Scolytinae – chemical ecology – dispersal – kairomone – menziesii (Mirb.) Franco (Pinaceae), and mountain hemlock, optimal foraging – pheromone – synomone Tsuga mertensiana (Bong.) Carr. (Pinaceae). Sixty-four compounds were identified from the ten trees, 42 of which elicited antennal responses in D. brevicomis, usually in both sexes. In addition, several synthetic compounds, including a Introduction number of the antennally-active compounds from the extracted trees and some bark beetle pheromone compo- After spending the entire immature portion of their life cycle nents, elicited antennal responses in a manner similar to that under the bark of a host tree, newly emerged adult bark beetles observed with the extracts. Of the antennally-active com- (Coleoptera: Curculionidae) leave the protection of the brood pounds known to be present in trees sympatric with D. bre- host and search for a new host in which to reproduce vicomis, only geraniol was unique to its host. Four (Rudinsky 1962). The diverse mixture of trees present in the antennally-active compounds were found in the host and in foraging area of most bark beetles, combined with the rela- other conifers; five compounds were found only in nonhost tively narrow host range of many of these insects (Wood 1982) conifers; eight compounds were found in either or both of and the high costs associated with mistakes (Atkins 1966), the nonhost angiosperms; eight compounds were found in implies that they should be able to detect and respond to olfac- either or both of the angiosperms and in nonhost conifers, tory cues from potential hosts and nonhosts in their foraging but not in the host; and 19 were found in both the host and area in order to successfully and efficiently locate new hosts. in angiosperms and/or nonhost conifers. Several bark beetle Since foraging adult bark beetles maintain very limited energy pheromone components were found in the stem volatile reserves (Atkins 1969) and are highly susceptible to predation extracts. Conophthorin was identified from both nonhost (Stephen & Dahlsten 1976; Dahlsten 1982) and abiotic condi- angiosperms; exo-brevicomin was identified in A. concolor; tions (McMullen & Atkins 1962; Gries et al. 1989) during dis- persal, there are clear advantages to discriminating among Correspondence to: Dezene Huber, email: [email protected] hosts and nonhosts from a distance. 378.qxd 10/30/2007 6:36 PM Page 210 210 W. P. Shepherd et al. CHEMOECOLOGY The ability of coniferophagous bark beetles to detect that other antennally-active compounds have not yet been and respond to volatiles known to emanate from host and tested in the field against this insect. In addition, it is possi- nonhost trees has been well-researched for a number of ble that some nonhost conifer volatiles (NCVs) may also be species (Lanne et al. 1987; Byers 1995; Zhang & Schlyter behaviorally-active in this insect. In order to determine 2004; Seybold et al. 2006). There is significant evidence accurately which compounds might play a role in this that coniferophagous bark beetles are capable of responding insect’s foraging behavior, we explored D. brevicomis in flight to complex mixtures of synthetic nonhost antennal responses to the stem volatiles of its primary host, angiosperm volatiles (NAVs) (Dickens et al. 1992; Wilson to the stem volatiles of seven nonhost conifers and two non- et al. 1996; Borden et al. 1997; Byers et al. 1998; Deglow host angiosperms, and to 23 synthetic plant volatiles and & Borden 1998a,b; Poland et al. 1998; Huber et al. 1999; bark beetle pheromone components. The results of this 2000a,b; 2001; Zhang et al. 1999a,b; 2000; 2001; 2002; study provide a comprehensive list of plant-derived com- Poland & Haack 2000; Huber 2001; Huber & Borden pounds that may be further tested for their behavioral effects 2001a,b; 2003; Jactel et al. 2001; Zhang 2001; 2003; Zhang on this important forest pest (Miller & Keen 1960; Furniss & Schlyter 2003; Fettig et al. 2005). Although foraging bark & Carolin 1977). beetles also land on and directly test hosts and nonhosts by taste or close-range olfaction (Elkinton & Wood 1980; Moeck et al. 1981), the ability to detect and avoid nonhosts Materials and Methods without landing reduces the likelihood of negative inter- actions between foraging bark beetles and various general- Collection and handling of beetles and host/nonhost material ist predators and parasitoids that may be associated with Western pine beetle, D. brevicomis, and its primary host, P. pon- the surface of nonhost trees (Stephen & Dahlsten 1976; derosa, were collected from one site in California (Table 1). Five Dahlsten 1982). Exploitation of this flight behavior in these nonhost trees were also collected from this site, whereas three economically- and ecologically-important insects has other nonhost trees were collected from a second site in California recently been studied by using NAVs and other antiaggre- (Table 1). The final nonhost, T. mertensiana, was collected from Alaska (Table 1) for other purposes, but was included in the study gants to reduce attack on single trees and in forest stands because although its high elevation distribution is largely allopatric (Wilson et al. 1996; Borden et al. 1998; 2003; Huber & with D. brevicomis, there are potential zones of sympatry in Borden 2001b; Jakuš et al. 2003; Zhang & Schlyter 2004; California, Oregon, Washington, and British Columbia (Burns & Fettig et al. 2007). Honkala 1990). Although some NAVs appear to be antennally-active in Larval, pupal, and adult D. brevicomis in outer bark and phloem were collected from standing P. ponderosa by falling trees a number of coniferophagous bark beetles (Huber et al. and transporting ~1 m stem sections to the Chemical Ecology and 2000b), there is enough variability in both antennal and Management of Forest Insects Laboratory in Davis, California behavioral responses (Dickens et al. 1992; Wilson et al. where they were placed into wooden emergence cages (Browne 1996; Borden et al. 1997; Byers et al. 1998; Deglow & 1972). Insects emerged into jars containing moist paper towels at 4°C and were immediately sorted by sex based on the presence of Borden 1998a,b; Poland et al. 1998; Huber et al. 1999; the female mycangium and protuberances on the male frons (Wood 2000a,b; 2001; Zhang et al. 1999a,b; 2000; 2001; 2002; 1982). Beetles were shipped regularly in September through Schlyter et al. 2000; Poland & Haack 2000; Huber 2001; November 2005 by overnight mail on ice to the Southern Research Zhang 2001; 2003; Huber & Borden 2001a,b; 2003; Jactal Station in Pineville, Louisiana for GC-EAD analyses. et al. 2001; Zhang & Schlyter 2003; Fettig et al. 2005) to The stems of host and nonhost trees for collection of volatiles were harvested and sectioned into 2 m lengths for transportation justify the use of detailed coupled gas chromatographic- to the
Load more

Recommended publications
  • Clave De Perforadores De Coníferas 04
    Clave de Perforadores de Coníferas Orden: Coleoptera. Suborden: Polyphaga Superfamilia: Curculionoidea. Familias: Scolytidae y Curculionidae CONSEJERÍA DE MEDIO AMBIENTE ESPECIES: Escolítidos y Curculiónidos, “barrenillos de la madera” y “gorgojos”, respectivamente. Las que presentan un mayor potencial patógeno dentro de Andalucía son los escolítidos Tomicus destruens (Wollaston,1865) y Orthotomicus erosus (Wollaston, 1857) ESPECIES AFECTADAS: Principalmente Coníferas DAÑOS: Se alimentan de la parte subcortical de los árboles que colonizan, provocándoles la muerte ya que al desarrollarse las larvas impiden el flujo de savia y agua. Ficha Resumen DISTRIBUCIÓN: La clave trata sobre especies existentes en la Comunidad Autónoma de Andalucía. ■ CURIOSIDADES: Con la alimentación de las larvas se graba en la madera una serie de galerías que son características y casi exclusivas de cada especie de perforador. 04 INTRODUCCIÓN medidas correctoras mas convenientes para redu- cir la densidad de las poblaciones de perforado- Los perforadores son coleópteros de peque- res hasta el umbral de tolerancia deseado. ño tamaño (no superan los 10 mm de longitud), de colores oscuros, negros o castaños. Son vola- A la hora de llevar a cabo la identificación de dores, y poseen una gran capacidad de disper- un individuo será necesario conocer sus caracte- sión. rísticas morfológicas, pero también es muy útil y Desarrollan su ciclo reproductor sobre los en muchos casos determinante saber que hábitos pies muertos que mantienen su madera húmeda, tienen y donde los desarrollan. En muchos casos sobre los enfermos o debilitados por sequías, por conocer esos hábitos determinará claramente que ataque de otras plagas, etc. Estos insectos son especie es la causante de los daños.
    [Show full text]
  • TREE NOTES CALIFORNIA DEPARTMENT of FORESTRY and FIRE PROTECTION Arnold Schwarzenegger Andrea E
    TREE NOTES CALIFORNIA DEPARTMENT OF FORESTRY AND FIRE PROTECTION Arnold Schwarzenegger Andrea E. Tuttle Michael Chrisman Governor Director Secretary for Resources State of California The Resources Agency NUMBER: 28 JANUARY 2004 Ips Beetles in California Pines by Donald R. Owen Forest Pest Management Specialist, 6105 Airport Road, Redding, CA 96022 There are a number of bark beetle species that species, climate, and other factors, Ips may attack and kill pines in California. Foremost complete from one to many generations per among these are species of Dendroctonus and year. Under ideal conditions, a single Ips. Although species of Dendroctonus are generation may be completed in about 45 considered to be the most aggressive tree days. Ips killers, species of can be significant pests Ips under certain circumstances and/or on certain are shiny black to reddish brown, hosts. Nearly all of California’s native pines cylindrical beetles, ranging in size from about Ips 3 - 6.5 cm. A feature which readily areattackedbyoneormorespeciesof . Dendroctonus Some species of Ips also attack spruce, but are distinguishes them from beetles not considered to be significant pests in is the presence of spines on the posterior end California. of the wing covers. There may be between 3-6 pairs of spines, the size, number and While numerous bark beetles colonize pines, arrangement of which are unique for each only a handful are capable of killing live trees. The majority of bark beetles, including species of Ips, are secondary invaders that colonize recently dead, dying, or weakened trees. Those species of Ips that kill trees, do so opportunistically and typically only kill trees under stress.
    [Show full text]
  • Fungi Associated with Three Common Bark Beetle Species in Norwegian
    Preface Finally, two years of study for the master degree at the Norwegian University of Life Science is completed. This thesis is the end of my education in forestry science. It has been a long and sometimes challenging journey, but this is it. It started as a “worst case scenario”, when I had to change my thesis assignment. Two months of fieldwork resulted in nothing due to unlucky circumstances. I was saved by the hero Dr. Halvor Solheim who is my main supervisor. He came up with the idea of study fungi associated with some bark beetle species. This thesis has given me the opportunity to practice and learn about new fields, that I thought I never would bother to try to understand. I’ve been working with tree samples, beetle species and DNA! Normally I was the one who usually prayed, that DNA wouldn’t be a subject in the examinations. In additions to Dr. Halvor Solheim, many people have inspired, helped and motivated me through the whole process. They have answered all my questions and have been there for me when I needed help. Dr. Paal Krokene for advisements and borrowing out literature. Senior Engineers Helge Meissner and Anne Eskild Nilsen for instructions and advising in the biochemistry lab. Senior Research Scientist Ari M. Hietala for advising me about the laboratory methods and the writing process. Lead Engineer Inger M. Heldal for advisements and mixing of different solutions, such as primers and enzymes. Lead Engineer Gro Wollebæk for the advisements and instructions for the laboratory work. Scientific Adviser Torstein Kvamme for assisting with the fieldwork, beetle identification and comments on the manuscript.
    [Show full text]
  • And Pityogenes Knechteli (Swaine) (Coleoptera: Scolytidae) in Lodgepole Pine
    " "SEMIOCHEMICAL-BASED COMMUNICATION IN INTERSPECIFIC INTERACTIONS BETWEEN IPS PINI (SAY) AND PITYOGENES KNECHTELI (SWAINE) (COLEOPTERA: SCOLYTIDAE) IN LODGEPOLE PINE . THERESE M. POLAND and JOHN H. BORDEN Centre forPest Management,Department of Biological Sciences, SimonFraser University, Bumaby, l BritishColumbia,Canada V5A 1S6 ,_._, _ ::._.., _.,.... Abstract The Canadian Entomologist 126:269-276 (1994) .,:.... _ , . , a The pine engraver, Ips pini Say, and Pityogenes knechteli Swaine often co-exist in " , lodgepole pine, Pinus contorta var. latifolia Engelmann. We tested the hypotheses that ,.. " P. knechteli produces an attractive pheromone and that the attraction of P. knechteli and _%_'.. • I. pini to conspecifics is inhibited by the presence of the other species. Pityogenes ._:,: knechteli males and females were attracted to bolts infested with conspecific males and •. , , to bolts infested with I. pini males; however, there was no significant cross-attraction of ...... •: _ - I. pini males or females to bolts infested with P. knechteli males. Attraction ofP. knechteli " :;• _ ..... ,and I. pini males and females to bolts infested with conspecific males was not inhibited • ,. ._ in the presence of bolts infested with males of the other bark beetle species. Pityogenes .... knechteli has no potential for compe.titive displacement of I. pini but may enhance the adverse effectof I. pini on.the mountain pine beetle, Dendroctonus ponderosae Hopkins. ; Poland, T.M., et J.H. Borden. 1994. Communication s6mio-chimique lors des interactions _e.. ., intersp6cifiquesentreIpspini (Say)et Pityogenesknechteli (Swaine) (Coleoptera:Scolytidae) " " chez le Pin de Murray.The Canadian Entomologist 126:269-276 ? R_sum_ • _ ' Les scolytes Ips pini Say et Pityogenes knechteli Swaine cohabitent souvent dans des ' '_7:.':_ ......:'_:_::'_ Pins de Murray Pinus contorta var.
    [Show full text]
  • Spruce Beetle
    QUICK GUIDE SERIES FM 2014-1 Spruce Beetle An Agent of Subalpine Change The spruce beetle is a native species in Colorado’s spruce forest ecosystem. Endemic populations are always present, and epidemics are a natural part of the changing forest. There usually are long intervals between such events as insect and disease epidemics and wildfires, giving spruce forests time to regenerate. Prior to their occurrence, the potential impacts of these natural disturbances can be reduced through proactive forest management. The spruce beetle (Dendroctonus rufipennis) is responsible for the death of more spruce trees in North America than any other natural agent. Spruce beetle populations range from Alaska and Newfoundland to as far south as Arizona and New Mexico. The subalpine Engelmann spruce is the primary host tree, but the beetles will infest any Figure 1. Engelmann spruce trees infested spruce tree species within their geographical range, including blue spruce. In with spruce beetles on Spring Creek Pass. Colorado, the beetles are most commonly observed in high-elevation spruce Photo: William M. Ciesla forests above 9,000 feet. At endemic or low population levels, spruce beetles generally infest only downed trees. However, as spruce beetle population levels in downed trees increase, usually following an avalanche or windthrow event – a high-wind event that topples trees over a large area – the beetles also will infest live standing trees. Spruce beetles prefer large (16 inches in diameter or greater), mature and over- mature spruce trees in slow-growing, spruce-dominated stands. However, at epidemic levels, or when large-scale, rapid population increases occur, spruce beetles may attack trees as small as 3 inches in diameter.
    [Show full text]
  • Helping Pinus Ponderosa Fight Dendroctonus Brevicomis and Dendroctonus Ponderosae: Year II
    CALIFORNIA STATE SCIENCE FAIR 2008 PROJECT SUMMARY Name(s) Project Number Daniel M. Kari S1711 Project Title Helping Pinus ponderosa Fight Dendroctonus brevicomis and Dendroctonus ponderosae: Year II Abstract Objectives/Goals This project focuses on discovering natural ways to best preserve Pinus ponderosa from attacks by Dendroctonus brevicomis and Dendroctonus ponderosae, the bark beetles affecting these pine trees. Methods/Materials The first part of the project was conducted in two locations in the San Bernardino National Forest, Barton Flats and Angelus Oaks, where a density check of two, one-acre lots was conducted at each site by counting all trees and observing which plants surrounded dead pines and which plants surrounded healthy pines. Since Black Oak trees and Manzanita bushes proved to be the most prominent plants in this region, tests were conducted to evaluate the tannin content in each plant, tannin being the most powerful acid in their leaves. The assay used was for total Phenols. First ferric chloride (FeCl(3)) was mixed with HCl to make a pale yellow solution. A separate solution of potassium ferricyanide (K(3)Fe(CN)(6) was diluted in water. Each substance was stabilized before mixing each leaf sample in what is called the Prussian Blue Test. Gallic acid (pure tannin) was employed to standardize the spectrometer readings. Results The survey at Barton Flats found numerous Black Oaks, yet the Ponderosa Pines still experienced high fatalities from bark beetle attacks, especially as the density of Black Oaks increased. In contrast, the survey at Angelus Oaks found greater diversity in varieties of trees, and only one fatality near the Manzanita bushes common there.
    [Show full text]
  • Seasonality and Lure Preference of Bark Beetles (Curculionidae: Scolytinae) and Associates in a Northern Arizona Ponderosa Pine Forest
    COMMUNITY AND ECOSYSTEM ECOLOGY Seasonality and Lure Preference of Bark Beetles (Curculionidae: Scolytinae) and Associates in a Northern Arizona Ponderosa Pine Forest 1,2 1 3 1 M. L. GAYLORD, T. E. KOLB, K. F. WALLIN, AND M. R. WAGNER Environ. Entomol. 35(1): 37Ð47 (2006) ABSTRACT Ponderosa pine forests in northern Arizona have historically experienced limited bark beetle-caused tree mortality, and little is known about the bark beetle community in these forests. Our objectives were to describe the ßight seasonality and lure preference of bark beetles and their associates in these forests. We monitored bark beetle populations for 24 consecutive months in 2002 and 2003 using Lindgren funnel traps with Þve different pheromone lures. In both years, the majority of bark beetles were trapped between May and October, and the peak captures of coleopteran predator species, Enoclerus (F.) (Cleridae) and Temnochila chlorodia (Mannerheim), occurred between June and August. Trap catches of Elacatis (Coleoptera: Othniidae, now Salpingidae), a suspected predator, peaked early in the spring. For wood borers, trap catches of the Buprestidae family peaked in late May/early June, and catches of the Cerambycidae family peaked in July/August. The lure targeted for Dendroctonus brevicomis LeConte attracted the largest percentage of all Dendroc- tonus beetles except for D. valens LeConte, which was attracted in highest percentage to the lure targeted for D. valens. The lure targeted for Ips pini attracted the highest percentage of beetles for all three Ips species [I.pini (Say), I. latidens (LeConte), and I. lecontei Swaine] and the two predators, Enoclerus and T. chlorodia.
    [Show full text]
  • Management of Western North American Bark Beetles with Semiochemicals
    EN63CH21_Seybold ARI 20 November 2017 13:34 Annual Review of Entomology Management of Western North American Bark Beetles with Semiochemicals Steven J. Seybold,1,∗ Barbara J. Bentz,2 Christopher J. Fettig,1 John E. Lundquist,3 Robert A. Progar,4 and Nancy E. Gillette1 1USDA Forest Service, Pacific Southwest Research Station, Davis, California, 95618, USA; email: [email protected], [email protected], [email protected] 2USDA Forest Service, Rocky Mountain Research Station, Logan, Utah, 84321, USA; email: [email protected] 3USDA Forest Service, Pacific Northwest Research Station, Anchorage, Alaska, 99501, USA; ANNUAL REVIEWS Further email: [email protected] Click here to view this article's 4USDA Forest Service, Pacific Northwest Research Station, La Grande, Oregon, 97850, USA; online features: email: [email protected] • Download figures as PPT slides • Navigate linked references • Download citations • Explore related articles • Search keywords Annu. Rev. Entomol. 2018. 63:407–32 Keywords First published as a Review in Advance on aggregation pheromones, allomones, bark beetles, Dendroctonus, Ips, October 20, 2017 kairomones The Annual Review of Entomology is online at ento.annualreviews.org Abstract https://doi.org/10.1146/annurev-ento-020117- We summarize the status of semiochemical-based management of the major 043339 bark beetle species in western North America. The conifer forests of this This is a work of the US Government and is not region have a long history of profound impacts by phloem-feeding bark subject to copyright protection in the United States beetles, and species such as the mountain pine beetle (Dendroctonus ponderosae) and the spruce beetle (D.
    [Show full text]
  • Fungi Associated with the North American Spruce Beetle, Dendroctonus Rufipennis
    Color profile: Generic CMYK printer profile Composite Default screen 1815 NOTE / NOTE Fungi associated with the North American spruce beetle, Dendroctonus rufipennis Diana L. Six and Barbara J. Bentz Abstract: Fungi were isolated from individual Dendroctonus rufipennis (Kirby) collected from six populations in Alaska, Colorado, Utah, and Minnesota, U.S.A. In all populations, Leptographium abietinum (Peck) Wingfield was the most commonly isolated mycelial fungus (91–100% of beetles). All beetles in all populations were associated with yeasts and some with only yeasts (0–5%). In one population, Ophiostoma ips (Rumbold) Nannf. was also present on 5% of the beetles but always in combination with L. abietinum and yeasts. Ophiostoma piceae (Munch) H. & P. Sydow was found on 2% of beetles in another population. Ceratocystis rufipenni Wingfield, Harrington & Solheim, previously reported as an associate of D. rufipennis, was not isolated from beetles in this study. Ceratocystis rufipenni is a viru- lent pathogen of host Picea, which has led to speculation that C. rufipenni aids the beetle in overcoming tree defenses and therefore contributes positively to the overall success of the beetle during colonization. However, our results, con- sidered along with those of others, indicate that C. rufipenni may be absent from many populations of D. rufipennis and may be relatively rare in those populations in which it is found. If this is true, C. rufipenni may be only a minor or incidental associate of D. rufipennis and, as such, not likely to have significant impacts on beetle success or popula- tion dynamics. Alternatively, the rarity of C. rufipenni in our and others isolations may be due to difficulties in isolat- ing this fungus in the presence of other faster growing fungi such as L.
    [Show full text]
  • EPPO Reporting Service
    ORGANISATION EUROPEENNE EUROPEAN AND ET MEDITERRANEENNE MEDITERRANEAN POUR LA PROTECTION DES PLANTES PLANT PROTECTION ORGANIZATION OEPP Service d’Information NO. 8 PARIS, 2017-08 Général 2017/145 Nouvelles données sur les organismes de quarantaine et les organismes nuisibles de la Liste d’Alerte de l’OEPP 2017/146 Liste de quarantaine de l'Union Économique Eurasiatique (EAEU) 2017/147 Kits de communication de l’OEPP : nouveaux modèles d’affiches et de brochures sur les organismes nuisibles Ravageurs 2017/148 Rhynchophorus ferrugineus n’est pas présent en Australie 2017/149 Platynota stultana (Lepidoptera : Tortricidae) : à nouveau ajouté sur la Liste d’Alerte de l’OEPP Maladies 2017/150 Premier signalement de Puccinia hemerocallidis au Portugal 2017/151 Premier signalement de Pantoea stewartii en Malaisie 2017/152 La maladie de la léprose des agrumes est associée à plusieurs virus 2017/153 Brevipalpus phoenicis, vecteur de la léprose des agrumes, est un complexe d'espèces Plantes envahissantes 2017/154 Potentiel suppressif de certaines graminées sur la croissance et le développement d’Ambrosia artemisiifolia 2017/155 Bidens subalternans dans la région OEPP : addition à la Liste d’Alerte de l’OEPP 2017/156 Les contraintes abiotiques et la résistance biotique contrôlent le succès de l’établissement d’Humulus scandens 21 Bld Richard Lenoir Tel: 33 1 45 20 77 94 E-mail: [email protected] 75011 Paris Fax: 33 1 70 76 65 47 Web: www.eppo.int OEPP Service d’Information 2017 no. 8 – Général 2017/145 Nouvelles données sur les organismes de quarantaine et les organismes nuisibles de la Liste d’Alerte de l’OEPP En parcourant la littérature, le Secrétariat de l’OEPP a extrait les nouvelles informations suivantes sur des organismes de quarantaine et des organismes nuisibles de la Liste d’Alerte de l’OEPP (ou précédemment listés).
    [Show full text]
  • A Baseline Invertebrate Survey of the Knepp Estate - 2015
    A baseline invertebrate survey of the Knepp Estate - 2015 Graeme Lyons May 2016 1 Contents Page Summary...................................................................................... 3 Introduction.................................................................................. 5 Methodologies............................................................................... 15 Results....................................................................................... 17 Conclusions................................................................................... 44 Management recommendations........................................................... 51 References & bibliography................................................................. 53 Acknowledgements.......................................................................... 55 Appendices.................................................................................... 55 Front cover: One of the southern fields showing dominance by Common Fleabane. 2 0 – Summary The Knepp Wildlands Project is a large rewilding project where natural processes predominate. Large grazing herbivores drive the ecology of the site and can have a profound impact on invertebrates, both positive and negative. This survey was commissioned in order to assess the site’s invertebrate assemblage in a standardised and repeatable way both internally between fields and sections and temporally between years. Eight fields were selected across the estate with two in the north, two in the central block
    [Show full text]
  • Proceedings of the Entomological Society of Washington. Washington, Etc
    http://www.biodiversitylibrary.org/ Proceedings of the Entomological Society of Washington. Washington, etc. :Entomological Society of Washington http://www.biodiversitylibrary.org/bibliography/2510 v. 107 (2005): http://www.biodiversitylibrary.org/item/100258 Page(s): Page 554, Page 555, Page 556, Page 557, Page 558, Page 559, Page 560, Page 561, Page 562, Page 563, Page 564 Contributed by: Smithsonian Institution Libraries Sponsored by: Smithsonian Generated 30 January 2012 12:06 PM http://www.biodiversitylibrary.org/pdf3/009416500100258 This page intentionally left blank. The following text is generated from uncorrected OCR. [Begin Page: Page 554] PROC. ENTOMOL. SOC. WASH. 107(3), 2005, pp. 554-564 NONINDIGENOUS WOODBORING COLEOPTERA (CERAMBYCIDAE, CURCULIONIDAE: SCOLYTINAE) NEW TO OREGON AND WASHINGTON, 1999-2002: CONSEQUENCES OF THE INTRACONTINENTAL MOVEMENT OF RAW WOOD PRODUCTS AND SOLID WOOD PACKING MATERIALS J. R. LaBonte, a. D. Mudge, and K. J. R. Johnson Plant Division, Oregon Department of Agriculture, 635 Capitol Street, Salem, OR, 97301-2532, U.S.A. (e-mail: [email protected]) Abstract. — Urban forests, port areas, mills and businesses known to have received or handled imported wood or wood products were surveyed for nonindigenous woodboring insects in Oregon and southernmost western Washington from 1999-2002, predominantly using Lindgren funnel traps. Intercept® panel traps and/or Scots pine bait logs. Several other woodborer surveys or projects, using various traps and lures, also took place con- currently. Eight species of nonindigenous woodboring beetles new to Oregon, Washington, the western U.S., western North America, or North America are recorded for the first time: Phymatodes testaceus (L.), Tetropium castaneum L., Xylotrechus hircus (Gebler), and X.
    [Show full text]