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Fruit Pest Alerts

Brown Marmorated Stink Bug

Brown marmorated stink bug is on the move!  Sightings have been coming in weekly from western MA, areas near Worcester, and Cape Cod.

Spotted Wing Drosophila

Two trap locations in Western MA have yielded 2 female (first location) and 2 male & 2 female (second location).  Additional grower reports have also come in this week with the first trap captures of the season.  One report of fruit infestations following the salt test has also come in.  Growers with ripening fruit should begin their spray programs if they have not done so already.

Spotted Wing Drosophila

The UMass Vegetable & Fruit IPM Program trapping network has yielded no positive trap captures to date.  At this time last year we were catching small numbers so the onset of activity is about a week late by comparison.  Some nearby states have reported single captures in a very few locations, but no one has had significant and sustained captures yet.

Brown Marmorated Stink Bug

Latest Installment in the “Tracking the Brown Marmorated Stink Bug” series produced by the Northeastern Integrated Pest Management Center is available.

Brown Marmorated Stink Bug

Since the last alert there have only been a few adult BMSB trap captures or sightings (of more than 20 traps we are monitoring across the state):  2 in the Amherst area of Hampshire County, 3 in the Natick area of Middlesex County and 2 in the Northborough area of Worcester County.

Spotted Wing Drosophila

Spotted Wing Drosophila numbers continue to increase.  We are consistently catching them in all locations across the state where we have traps.  Trap captures average over 100 each of males and females (up from approximately 70 males and 60 females per trap on average last week) with some locations with very low numbers and others with over 600 total SWD.

Spotted Wing Drosophila

Spotted Wing Drosophila (SWD) trap captures continue to increase in all locations across the state. In some locations the numbers are very high (100-300 per trap), while most locations have under 50. Fruit infestations are being reported in primocane raspberries, blackberries, and blueberries.

Spotted Wing Drosophila

Most monitoring locations across the state are now reporting SWD captures with numbers steadily increasing in many locations. There are still a few locations (mostly away from commercial fruit production) where no SWD have yet been caught (e.g., Arnold Arboretum). However, there are other non-farm locations where SWD are being caught.

Brown Marmorated Stink Bug

During the last 2 weeks, we have only trapped 1 adult BMSB (near Brattleboro) in the approx. 20 locations that UMass Extension IPM is monitoring. However, some damage to corn in western Hampden County has seen attributed to BMSB and we will be trapping there next week to further identify the cause.

Spotted Wing Drosophila

Spotted Wing Drosophila numbers continue to increase. Over 60% of trap locations across the state are now consistently catching SWD with the numbers in double or triple digits per trap in several locations. These traps are in unsprayed field borders or in other non crop locations, but this is a good indication of the background pressure outside the field.

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