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Visit The University of Massachusetts Amherst Apply Give Search UMass.edu (/) Coronavirus (COVID-19) Resources from UMass Extension and the Center for Agriculture, Food and the Environment: ag.umass.edu/coronavirus (/coronavirus) 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 Message: July 24, 2020 July 24, 2020 Issue: 13 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. (/landscape) Detailed reports from scouts and Extension specialists on growing conditions, pest activity, and Search CAFE 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 Search this site regional news and environmental data. Search The UMass Plant Diagnostic Laboratory has reopened for plant disease, insect pest and invasive plant/weed samples. At this time, we can only accept mail-in samples, walk-in samples cannot be accepted. Please refer to our website for instructions on Newsletters & sample submission and to access the submission form: Updates https://ag.umass.edu/services/plant-diagnostics-laboratory (/services/plant-diagnostics- laboratory). Mail delivery services and staffing have been altered due to the pandemic, so Landscape Message please allow for some additional time for samples to arrive at the lab and undergo the (/landscape/landscape-message) diagnostic process. We look forward to resuming activities and diagnosing your plant Archived Landscape Messages problems! (/landscape/landscape- message-archive) The UMass Soil & Plant Nutrient Testing Lab is now accepting new orders for routine soil analysis and particle size analysis orders ONLY. Please do not send orders for other Hort Notes types of analyses at this time. Orders should be sent via USPS, UPS, FedEx or other private (/landscape/newsletters- carrier. The lab office will remain closed to the general public until further notice and hand updates/hort-notes-clippings- from-garden) delivered orders will not be accepted at this time. Processing time will be longer than usual Archived Hort Notes since the lab is operating with reduced staff and staggered shifts. Updates and order forms (/landscape/newsletters- are available at: https://ag.umass.edu/services/soil-plant-nutrient-testing-laboratory updates/hort-notes-archive) (/services/soil-plant-nutrient-testing-laboratory). Garden Clippings (/landscape/newsletters- updates/garden-clippings) Pesticide License Exams - The MA Dept. of Agricultural Resources (MDAR) has begun opening dates to hold exams for new exam applicants. Individuals will be able to begin signing up for new exams beginning 7/9/20. Exams will be held at the Colonial Inn in Subscribe to GreenInfo Mailing List » Gardener under a covered tent and safety precautions will be sent to the examinees ahead (/landscape/email-list) of time so that they can be prepared when coming to the exam site. Please be aware that space is still limited. To register, go to https://www.mass.gov/pesticide-examination-and- licensing (https://www.mass.gov/pesticide-examination-and-licensing). Connect with UMass Extension For our COVID-19 Information and Support for Landscapers, Nurseries, Turf Landscape, Nursery and Urban Managers, Garden Centers, Arborists, and Greenhouse Operations in Massachusetts, Forestry Program: go to https://ag.umass.edu/landscape/news/covid-19-information-support-for-landscapers- nurseries-turf-managers-garden-centers (/landscape/news/covid-19-information-support- (https://www.facebook.com/UMassExtLandscape)for-landscapers-nurseries-turf-managers-garden-centers). The Landscape Message will be updated bi-weekly July through September. The next (https://twitter.com/umasslandscape) message will be available on August 7. To receive immediate notification 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 Environmental Data The following data was collected on or about July 22, 2020. Total accumulated growing degree days (GDD) represent the heating units above a 50° F baseline temperature collected via our instruments for the 2020 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 (°F at 4" Precipitation MA depth) Time/Date of Region/Location Readings 2-Week (2-Week Gain) 2020 Total Sun Shade Gain CAPE 331.5 1186.5 76 71 0.39 12:00 PM 7/22 SOUTHEAST 347.5 1321.5 89 75 0.46 3:30 PM 7/22 NORTH SHORE 349.5 1304.5 73 69 1.65 8:30 AM 7/23 EAST 369.5 1416 76 70 0.76 5:00 PM 7/22 METRO 354.5 1356 73 68 1.01 6:00 AM 7/22 CENTRAL 361 1363 67 65 1.03 7:00 AM 7/22 PIONEER VALLEY 362 1381 78 70 1.21 2:00 PM 7/22 BERKSHIRES 334 1251.5 75 69 1.84 8:30 AM 7/22 AVERAGE 351 1323 76 70 1.04 _ n/a = information not available As of 7/21, this map of MA shows large areas of our state continue to experience "Moderate Drought" (D1) or "Abnormally Dry" (D0) conditions: https://droughtmonitor.unl.edu/CurrentMap/StateDroughtMonitor.aspx?MA (https://droughtmonitor.unl.edu/CurrentMap/StateDroughtMonitor.aspx?MA) To track water use restrictions/bans by town, regularly check the MassDEP map: https://www.mass.gov/doc/water-use-restrictions-map/download (https://www.mass.gov/doc/water-use-restrictions-map/download) Phenology INDICATOR PLANTS - STAGES OF FLOWERING (BEGIN, BEGIN/FULL, FULL, FULL/END, END) PLANT CAPE SE NS EAST METRO CENT PV Clethra Begin Begin/Full Begin Begin Begin Begin Begin alnifolia (summersweet Clethra) Hibiscus Begin Full Full Begin/Full Begin/Full Begin/Full Begin syriacus (rose- of-Sharon) Lythrum Begin/Full Full Begin Begin Full Full Full salicaria (loosestrife) Buddleia Begin Full/End Full Begin Full Full Full davidii (butterfly bush) Oxydendrum Full/End * Full Full End Full Full arboreum (sourwood) Hydrangea Full Full/ End Full Full Full/End Full Full macrophylla (bigleaf Hydrangea) Campsis Full Full Full/End Full Full/End Full Full/End radicans (trumpet vine) Hydrangea Full End Full Full/End Full/End Full/End Full paniculata (panicle Hydrangea) Tilia cordata End * End End End * End (littleleaf linden) * = no activity to report/information not available Regional Notes Cape Cod Region (Barnstable) General Conditions: The average temperature for the period from July 8 – July 22 was 73˚F with a high of 89˚F on July 21 and a low of 53˚F on July 17. Overall, the period has been warm with highs in the 80s and lows around 70˚F except for a brief cool period from July 15 – July 17 when temperatures struggled to reach 70˚F and lows were in the 50s. Humidity and sunlight have been variable. During the period, less than half an inch of precipitation fell, leaving topsoil moisture very short and subsoil moisture short. The lack of precipitation is primarily being seen in landscape ornamentals and turf. Pests/Problems: Large populations of lecanium scale adults appear to have been attacked by entomopathogenic fungi and infested scales can be seen readily on branches (see image). Even with attack by entomopathogenic fungi, populations still remain high and the scale has entered the crawler stage which can now be found on the leaves of plants (see image). Areas with high populations will soon see the development of sooty mold again. Other insects or insect damage seen during the period includes: lacebugs on azalea, Andromeda, and sycamore; Japanese, Oriental, and Asiatic beetle adults on ornamentals (anecdotally, there seems to be more damage than in recent years, especially from Asiatic beetles); bark beetle damage to eastern red cedar; turpentine beetle damage to pitch pine; pine tip moth damage on pitch pine and mugo pine; Euonymus scale on Euonymus; daylily leaf miner on daylily; columbine leaf miner on columbine; spidermites on catmint and Buddleia, chilli thrips on Hydrangea; earwig damage on Buddleia and H. paniculata, and Hibiscus sawfly on hardy Hibiscus.Disease symptoms or signs observed during the period include brown rot on ornamental cherry, apple scab and cedar apple rust on crabapple, powdery mildew on flowering dogwood, anthracnose on flowering dogwood, Septoria leaf spot on red twig dogwood, anthracnose on red maple, Cercospora leaf spot on bigleaf and oak leaf Hydrangea, Iris leaf spot on bearded Iris, Macrophoma leaf spot on boxwood, Volutella blight on boxwood, tip blight on Leyland cypress, dollar spot on turf, leaf spot on river birch, and powdery mildew on the usual (Monarda, lilac, Phlox, and rose). Other issues seen during the period include girdling roots on red maple and leaf scorch on dogwoods. Purslane, prostrate spurge, and crabgrass are all thriving under the dry soil moisture conditions. Rabbits continue to be a serious issue for those with perennials and annuals. Keep yourself protected from ticks. (/sites/ag.umass.edu/files/pest- alerts/images/content/07222020_lecanium_scale_entomopathogenic_fungi.jpg) (/sites/ag.umass.edu/files/pest- alerts/images/content/07222020_lecanium_scale_crawlers.jpg) Southeast Region (Dighton) General Conditions: The past two weeks have been a trifecta of heat, humidity and insufficient rain. Unirrigated turf is burnt out and brown. A great flight of Oriental Beetles ended as suddenly as it began with ominous portent for the fall. Happily, Monarch butterflies have arrived. Great golden digger wasps and organ pipe mud dauber wasps can be seen harassing hummingbirds over the most productive flower banks.