Category Archives: Pest Alerts

Cucurbit downy mildew update

August 16, 2017 Update from Cheryl Smith, UNH Plant Diagnostic Lab: Cucurbit downy mildew (CDM) has been identified in NH in both Hillsborough county (on cucumber) and Cheshire county (on muskmelon). CDM symptoms begin as vein-delimited spots, but then expands … Continue reading

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Late blight nearby

by Cheryl Smith, UNH Plant Diagnostic Lab and Becky Sideman, Vegetable & Berry Specialist. As of July 31, 2017, Angie Madieras from the UMass Diagnostic Lab just diagnosed late blight on cherry tomatoes (‘5-star grape’ and ‘purple bumble bee’) in … Continue reading

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July 20, 2017 Insect Pest Update

From Alan Eaton, UNH Extension IPM Specialist July 20, 2017 Sweet corn pests – This year our sweet corn trapping network is basically in Hillsborough county, with a couple of sites in Merrimack & Cheshire counties.  We detected our first … Continue reading

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Keep an eye out for pepper maggot

by Becky Sideman, UNH Extension Vegetable & Berry Specialist Pepper maggot (Zonosemata electa) is a pest that is found throughout southern New England; but in recent years, it has been found in several locations in southern New Hampshire as well. … Continue reading

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SWD earlier than expected

by Alan Eaton, George Hamilton, and Linda Kuhnhardt; UNH Cooperative Extension We captured our first spotted wing drosophila (SWD) on June 22, 2017 in Hillsborough County.  This is about 2 weeks earlier than expected.  If you grow early varieties of … Continue reading

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Mummy berry in blueberry – scout now

Mummy berry disease of blueberry is often only a minor problem, but it can cause significant  fruit losses when the environmental conditions are right. This year may be one of those years. Now is the time to scout for primary shoot … Continue reading

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Spinach Downy Mildew in the Northeast: See It?? Report It!! Manage It!!

by Margaret Tuttle McGrath, Plant Pathology and Plant-Microbe Biology Section, SIPS, Cornell University, Long Island Horticultural Research and Extension Center, 3059 Sound Avenue, Riverhead, NY 11901; mtm3@cornell.edu Downy mildew has been found recently in spinach at several farms in the northeastern U.S. This … Continue reading

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Vegetable and Berry Crop Insect and Disease Update, 25 August 2016

By Alan Eaton, George Hamilton, Cheryl Smith & Becky Sideman, UNH Extension Sweet corn: Corn earworm and Fall armyworm numbers have jumped this week, so sweet corn growers in much of the state need to keep fresh silking corn protected. … Continue reading

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New insect pests in vegetable crops: leek moth and swede midge

by Becky Sideman, UNH Extension Professor & Specialist, Vegetable & Berry Crops We have a couple of new pests in New England. Neither have yet been documented in New Hampshire, but they are both present in Vermont and we expect … Continue reading

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Scout for potato leafhoppers

by Becky Sideman, UNH Extension Professor & Specialist, Vegetable & Berry Crops We’re seeing potato leafhoppers in New Hampshire now (last week of June, 2016), and it’s time to scout your fields. Hopperburn is a problem not only on potato, … Continue reading

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