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Fruit Program News

jmcextman: Out and about in the UMass Cold Spring Orchard...

My Baker's Dozen Apple and Pear Pruning Tips

As it approaches time to begin pruning your apple or pear orchard, here is "My Baker's... Read more »

Winter and Early-Season Fire Blight Management Fact Sheet

Dr. Quan Zeng, Dept. of Plant Pathology and Ecology, The Connecticut Agricultural Experiment Station

"Fire blight is a devastating disease of apples and pears... Read more »

Apple and Peach Crop Insurance Fact Sheets for the 2015 crop year in Massachusetts are available from USDA's Risk Management Agency website:

... Read more »

Current bud stages, May 19, 2014, UMass Cold Spring Orchard.

View more photos of bud stages

Each year the UMass Stockbridge School of Agriculture and the UMass Center for Agriculture offer one or more workshop series on topics of general interest... Read more »

Adult Femail BMSB

The new UMass Extension Brown Marmorated Stink Bug Resouce Center is now available.  Go to the Brown Marmorated Stink Bug Introduction page to enter the site which has information on ID &... Read more »

Spotted Wing Drosophila on yellow trap

The new UMass Extension Spotted Wing Drosophila Resouce Center is now available.  Go to Spotted Wing Drosophila Introduction page to enter the site which has information on ID & Biology,... Read more »

Winter Moth (Operophtera brumata): This is a new and important pest of blueberries, apples and other deciduous plants, especially in Southeastern New England. They can severely defoliate trees and bushes and can... Read more »

Male Spotted Wing Drosophila (Drosophila suzukii)

Spotted Wing Drosophila (Drosophila suzukii), SWD, is a recently introduced new species of fruit fly in the United States. It was first found on the west coast in 2008, but has rapidly colonized many fruit producing regions of the country.  It was first found in New England in late summer 2011 and has now been confirmed in Massachusetts (as of July 3) in 2012.

Winter Moth on blueberry buds (2011)

Winter Moth (Operophtera brumata): This is a new and important pest of apples, blueberries and other deciduous plants, especially in Southeastern New England. They can severely reduce yields and/or defoliate bushes. Moths emerge from the soil usually in late November and may be active into January.  Eggs hatch in late March or early April and the small caterpillars wriggle into swelling buds of wild and cultivated hosts, hollowing out the interior.  The eggs are thought to hatch at around 20 GDD base 50˚F from March 1 or when Norway Maple buds are swelling.  (Another model predicts egg hatch at 173 GDD base of 40˚F starting Jan 1).  This may come early in 2012 due to unseasonably warm weather in March.

To calculate the Growing Degree Days for your location, see

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