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Jun 7, 2019 | Umass Center for Agriculture, Food and the Environment 6/7/2019 Landscape Message: Jun 7, 2019 | UMass Center for Agriculture, Food and the Environment Apply Give Search (/) LNUF Home (/landscape) About (/landscape/about) Newsletters & Updates (/landscape/newsletters-updates) Publications & Resources (/landscape/publications-resources) Services (/landscape/services) Education & Events (/landscape/upcoming-events) Make a Gift (https://securelb.imodules.com/s/1640/alumni/index.aspx? sid=1640&gid=2&pgid=443&cid=1121&dids=2540) (/landscape) Search the Center for Agriculture, Food and the Environment Search this site Search Landscape Message: Jun 7, 2019 Jun 7, 2019 Issue: 11 UMass Extension's Landscape Message is an educational newsletter intended to inform and guide Massachusetts Green Industry professionals in the management of our collective landscape. Detailed reports from scouts and Extension specialists on growing conditions, pest activity, and cultural practices for the management of woody ornamentals, trees, and turf are regular features. The following issue has been updated to provide timely management information and the latest regional news and environmental data. The Landscape Message will be updated weekly in June. The next message will be posted on June 14. To receive immediate notication when the next Landscape Message update is posted, be sure to join our e-mail list (/landscape/email-list). To read individual sections of the message, click on the section headings below to expand the content: Scouting Information by Region ag.umass.edu/landscape/landscape-message-jun-7-2019 1/20 6/7/2019 Landscape Message: Jun 7, 2019 | UMass Center for Agriculture, Food and the Environment Environmental Data The following data was collected on or about June 5, 2019. Total accumulated growing degree days (GDD) represent the heating units above a 50° F baseline temperature collected via our instruments for the 2019 calendar year. This information is intended for use as a guide for monitoring the developmental stages of pests in your location and planning management strategies accordingly. Soil Temp GDD Precipitation MA Region/Location (°F at 4" depth) Time/Date of Readings (1-Week Gain) 1-Week Gain 2019 Total Sun Shade CAPE 51 253 65 58 0.44 12:00 PM 6/5 SOUTHEAST 81 319.5 59 55 0.5 12:45 PM 6/4 NORTH SHORE 74.5 317.5 59 54 0.22 10:00 AM 6/5 EAST 75 361 68 61 0.47 5:00 PM 6/5 METRO 66 326.5 62 58 0.37 6:00 PM 6/4 CENTRAL 89 360.5 49 54 0.42 1:05 PM, 6/4 PIONEER VALLEY 82 375 61 57 0.25 11:00 AM 6/4 BERKSHIRES 72 328 63 54 1.23 8:30 AM 6/5 AVERAGE 74 330 61 56 0.49 - n/a = information not available Phenology INDICATOR PLANTS - STAGES OF FLOWERING (BEGIN, BEGIN/FULL, FULL, FULL/END, END) PLANT NAME (BOTANIC/ CAPE S.E. N.S. EAST METRO W. CENT. P.V. BERK. COMMON) Kalmia latifolia * Begin Begin Begin * * Begin/Full * (mountain laurel) Chionanthus * Full Begin Begin Begin Begin/Full Begin/Full Full virginicus (fringe tree) Cornus kousa * Begin Begin Begin Begin Begin Begin/Full Begin/Full (kousa dogwood) Robinia * Begin/Full Begin/Full Begin/Full Begin/Full Begin/Full Full Begin/Full pseudoacacia (black locust) ag.umass.edu/landscape/landscape-message-jun-7-2019 2/20 6/7/2019 Landscape Message: Jun 7, 2019 | UMass Center for Agriculture, Food and the Environment Kolkwitzia Begin Full Begin Begin/Full Begin/ Begin Full Begin/Full amabilis Full (beautybush) Weigela orida Full Full Begin/Full Begin/Full Begin/ Begin/Full Full Begin/Full (old fashioned Full Weigela) Deutzia spp. Begin/Full Full Full Full * Full * Full (Deutzia species) Enkianthus * Full Full Full Full Full Full Full campanulatus (redvein Enkianthus) Rhododendron Full/End Full Full/End Full/End Full/End Full/End Full Full carolinianum (Carolina Rhododendron) Rhododendron Full Full Full/End Full/End Full/End Full Full Full catawbiense (Catawba Rhododendron) Aesculus Full/End Full/End Full/End Full/End Full/End Full/End Full/End Full/End hippocastanum (common horsechestnut) Spiraea x Full/End Full/End Full * Full/End Full Full/End Full vanhouttei (Vanhoutte Spirea) * = no activity to report/information not available Regional Notes Cape Cod Region (Barnstable) General Conditions: The average temperature from May 29 – June 5 was 58˚F with a low of 45˚F on June 4 and a high of 73˚F on June 3. Just under a half inch of precipitation fell during the period. Overall the period was sunny and dry. Topsoil moisture is short, subsoil moisture is adequate. Pests/Problems: Winter moth has mostly migrated to the soil to pupate. Lecanium scale females have begun laying eggs and are easier to see now that they have obtained their hemispherical helmet shape. Damage to oaks from lecanium scale is being seen primarily in the form of twig dieback. Honeydew is heavy in areas where populations are high. Large populations have also been observed on sweetgum and black gum. Other insects or damage seen over the past week include sawy larvae on oak, sawy larvae on rose, Viburnum leaf beetle larvae on Viburnum, Hydrangea leaftier on H. arborescens, boxwood psyllid and boxwood leafminer on ag.umass.edu/landscape/landscape-message-jun-7-2019 3/20 6/7/2019 Landscape Message: Jun 7, 2019 | UMass Center for Agriculture, Food and the Environment boxwood, and lily leaf beetle on Asiatic lily. Disease symptoms or signs seen over the past week include brown rot on Prunus spp., anthracnose on sycamore, anthracnose on dogwood, winter burn on white pine and black spot on rose. Cedar apple rust was still active during the beginning of the period, red thread was seen on turf and normal spring leaf drop in Ilex species. Slugs and earwigs are active. Weeds in bloom include black medic (Medicago lupulina), cypress spurge (Euphorbia cyparissias), white clover (Trifolium repens), hawkweed (Hieracium pratense) and cinquefoil (Potentilla simplex). Southeast Region (New Bedford) General Conditions: Seventy-degree days are here; it feels like a big switch over from spring into early summer this week. Many tulips are being pulled and summer annuals are being planted. The evening temperatures are still dropping into the low 50’s and the days have been windy, reminding us that spring is indeed still here. So far this week we have received half of an inch of rain with more in the forecast for the remainder of the week. Cornus kousa is beginning to bloom, Chionanthus spp. are blooming, and many of the Rhododendrons are in full bloom. Pests/Problems: Slug damage has been spotted and tent caterpillars are present. Garlic mustard, cress, and creeping g are going to seed. Chipmunks, turkeys, groundhogs, rabbits, mosquitos, and deer are active in the gardens. Many grubs have been noted in gardens and lawns. See the insect section for further details on winter moth. Attention Southeast region readers: Would you be a good scout for the Landscape Message? UMass Extension is seeking a capable individual to take over reporting duties for the Southeast region starting ASAP. Candidates must be able to scout and report weekly through June, bi-weekly through July, August, and September, and monthly in October, November, and December. Ideally this person would be located in roughly the Brockton-Bridgewater-Taunton area (or able to regularly scout that area), although we will entertain inquiries from throughout Bristol and Plymouth Counties. The scouting and reporting for each message is estimated to take approximately 1/2 day per message week, and UMass Extension is able to pay a stipend for scouts. If interested, see the "Description of Responsibilities" here: https://ag.umass.edu/sites/ag.umass.edu/les/content-les/alerts- messages/2018_scout_expectations.pdf (/sites/ag.umass.edu/les/content-les/alerts- messages/2018_scout_expectations.pdf) then contact Ellen Weeks at [email protected] (mailto:[email protected]) or 413-545-2685 to apply. North Shore (Beverly) General Conditions: There was a shift in the weather during the rst part of this reporting period. Cool spring-like weather was replaced by warm early summer-like weather with sunny or overcast skies. Day temperatures were in the mid-60s to low 70s. Night temperatures were in the low to mid 50s. Approximately 0.22 inches of rain was recorded at Long Hill. Due to moist soil and cool weather, grass is looking good on lawns. Woody plants seen in bloom include: Chinese Neillia (Neillia sinensis), Wisteria (Wisteria oribunda), tree Wisteria (Wisteria longissima alba), slender Deutzia (Deutzia gracilis), fringe tree (Chionanthus virginicus), doublele Viburnum (Viburnum plicatum var. tomentosum), redvein Enkianthus (Enkianthus campanulatus), little leaf lilac (Syringa microphylla), beautybush (Kolkwitzia amabilis), Kousa dogwood (Cornus kousa), mock orange (Philadelphus spp.),sapphire-berry (Symplocos paniculata), mountain laurel (Kalmia latifolia), Vanhoutte Spirea (Spiraea x vanhouttei), Weigela (Weigela orida), and some azalea varieties. Some of the non-woody plants seen in bloom include: fetterbush (Leucothoe fontanesiana), Scotch rose (Rosa spinosissima), Peony (Paeonia spp.), Cranesbill (Geranium spp.), bleeding heart (Dicentra spectabilis), Solomon’s seal (Polygonatum odoratum), blue star (Amsonia hubrichtii), eece plant (Persicaria amplexicaulis), and several annuals. ag.umass.edu/landscape/landscape-message-jun-7-2019 4/20 6/7/2019 Landscape Message: Jun 7, 2019 | UMass Center for Agriculture, Food and the Environment Pests/Problems: Galls of azalea leaf and ower gall (Exobasidium vaccinii) are starting to develop the white spore layer. Prune them o immediately and discard them in the trash. Viburnum leaf beetles continue to enlarge and are causing serious damage on American cranberrybush Viburnum. The leaves are almost completely skeletonized. Arrowwood Viburnum is also slightly aected. Other Viburnum cultivars are not aected. Invasive plant species observed in ower include autumn olive (Elaeagnus umbellata) and burning bush (Euonymus alatus).
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