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Category: 2020 trap network

Published on Leave a comment on Higher numbers in cherry at HVL in Ulster County

First catch of five female and five male SWD were caught in traps set in a sweet cherry planting at the Hudson Valley Research Laboratory. The traps were checked on June 14, 2020 — yesterday. Fruit is starting to change color and will become susceptible to egg-laying soon.

A trap to monitor SWD set in a tart cherry tree.
Scentry SWD trap set in a tart cherry. Fruit are coloring and will soon be ripe for harvest. When ripening and ripe, cherries can be infested by SWD.

These traps are being monitored by Lydia Brown, research technician with Peter Jentsch, Entomology, Hudson Valley Research Laboratory, Cornell University.

Ten SWD is a considerable uptick in SWD numbers, compared to earlier in the week! And vulnerable cherries are beginning to ripen. It’s time to take SWD IPM planning seriously.

Consider FIRST all the things you can do in the list below to thwart this insect that will enhance the efficacy of the insecticide management program and protect your harvest.

Pest management for SWD includes:

  • Mowing – to reduce humidity and niches for SWD harborage and to increase sun penetration.
  • Weed management – to reduce humidity, alternate fruiting hosts and harborage and to increase sun penetration.
  • Pruning – to reduce humidity and to increase sun and spray penetration.
  • Monitoring – to know if SWD is present when fruit is ripening.
  • Sanitation – to reduce reproduction harborage and overall SWD population.
  • Cold storage – to slow or kill any eggs and larvae in harvested fruit.

Insecticide Quick Guides for NY State are found here (refresh the page to see the latest version):

SWD Management, fruit.cornell.edu/spottedwing/management/ on Cornell Fruit Resources.

Learn more about SWD. Knowledge is power. Check out the information on Cornell Fruit Resources Spotted Wing Drosophila, fruit.cornell.edu/spottedwing/.

Published on Leave a comment on First catch in Rensselaer County

Two male SWD were caught in a trap set on the edge of a blueberry planting and raspberry high tunnel in Rensselaer County. The traps were checked on June 9, 2020. Fruit are developing nicely, but still not susceptible to egg-laying. These traps are being monitored by Laura McDermott, Eastern NY Commercial Horticulture Program, Cornell Cooperative Extension.

Photo of a bumblebee feeding on a raspberry flower.
A wild pollinator feeding on a fall raspberry flower. Remember to keep pollinators safe from your insecticide program.

The Northeastern IPM Center SWD Working Group put together these IPM guides:

SWD Management, http://fruit.cornell.edu/spottedwing/management/ on Cornell Fruit Resources has a summary on management and links to the Insecticide Quick Guides for NY State, found here:

Refresh the page to see the latest version.

 

Published on Leave a comment on First catch in Ulster County

One male and one female SWD were caught in a trap set on the edge of a raspberry planting in Ulster County. The traps were checked on June 11, 2020. Fruit is developing but still hard and green — not yet susceptible to egg-laying. These traps are being monitored by Jim O’Connell, Ulster County Cornell Cooperative Extension.

As fruit start to ripen, keep in mind the key tactics for SWD management:

  • Mowing – to reduce humidity and niches for SWD harborage and to increase sun penetration.
  • Weed management – to reduce humidity, alternate fruiting hosts and harborage and to increase sun penetration.
  • Pruning – to reduce humidity and to increase sun and spray penetration.
  • Monitoring – to know if SWD is present when fruit is ripening.
  • Sanitation – to reduce reproduction harborage and overall SWD population.
  • Cold storage – to slow or kill any eggs and larvae in harvested fruit.
A photomicrograph shows the differences between a male and a female SWD.
Female SWD (left) and male SWD (right), viewed through a dissecting microscope after being drown in an apple cider vinegar trap. Note the serrated ovipositor on the female and the dark single spot on each wing of the male.

Get more details at SWD Management, fruit.cornell.edu/spottedwing/management/ on Cornell Fruit Resources.

SWD Insecticide Quick Guides for NY State are found here (refresh the page to see the latest version):

Learn more about SWD. Check out the information on Cornell Fruit Resources Spotted Wing Drosophila, fruit.cornell.edu/spottedwing/.

Published on Leave a comment on First catch in Livingston County
Picture of an SWD male sowing the spot on each wing.
Live SWD male, note spot on each wing.

One male SWD was caught in a trap set in a small blueberry planting in Livingston County. The traps were checked on June 8, 2020. Plants were at petal fall when traps were serviced last week. These traps are being monitored by Dave Thorp, Livingston County Cornell Cooperative Extension.

Plants aren’t susceptible to SWD until fruit are changing color and nearing ripeness. Brush up on SWD Management, http://fruit.cornell.edu/spottedwing/management/ on Cornell Fruit Resources.

Insecticide Quick Guides for NY State are found here:

Refresh the page to see the latest version.

Learn more about SWD. Check out the information on Cornell Fruit Resources Spotted Wing Drosophila, http://fruit.cornell.edu/spottedwing/.

Published on Leave a comment on First catch in Niagara County

One male SWD was caught in a trap set on the edge of a blueberry planting in Niagara County. The traps were checked on June 8, 2020. Fruit is developing nicely, yet still green and not susceptible to egg-laying. Now's the time to brush up on pest management for SWD, before harvest begins.

SWD Management in Blueberry

Consider all the things we can do to thwart this insect that will enhance the efficacy of the insecticide management program:

    • Mowing
    • Weed management
    • Pruning
    • Sanitation
    • Cold storage
Photo of a male SWD taken in the laboratory, showing the spot on each wings.
Male SWD pauses for the camera in the lab. Note the characteristic spot on the leading edge of each wing.

These traps are being monitored by Elizabeth Tee, Lake Ontario Fruit Program, Cornell Cooperative Extension.

Want to learn more about SWD? Check out the information on Cornell Fruit Resources Spotted Wing Drosophila, fruit.cornell.edu/spottedwing/.

Published on Leave a comment on First catch in Schuyler County

A single male SWD was caught in a trap set on the edge of a blueberry planting in the eastern part of Schuyler County. Traps were checked on May 21, after the cold spell broke and warmer weather prevailed at week's end in the Finger Lakes region. The plants are at early pink bud and progressing to bloom, possibly quickly given the switch to hot weather.

It will be interesting to see if SWD is caught at this site next week. Four traps are set in these blueberries, with two on the row next to a woods in which a small stream gently rolls along the west edge of the planting. Perhaps perfect wintering grounds for our enemy, SWD?

Its too early to spray since there's no fruit. The Quick Guides to SWD Insecticides are not up-to-date yet, but soon will be. In the meantime, consider all the things we can do to thwart this insect that will enhance the efficacy of the insecticide management program:

  • Mowing
  • Weed management
  • Pruning
  • Sanitation
  • Cold storage

Details for SWD IPM in blueberry can be found on this blog, Managing SWD in Blueberries at https://blogs.cornell.edu/swd1/2019/08/02/managing-swd-in-blueberries/. Comprehensive information on SWD IPM is available in Spotted Wing Drosophila IPM in Blueberries from the NE IPM Center SWD Working Group, neipmc.org/go/swdpub2

Picture of three SWD males.
Three male spotted wing Drosophila. Note the spot on each wing, which is on the end of the first vein from the outer edge of the wing.

Like do-it-yourself projects?

Blueberry growers in New Jersey have had success monitoring SWD using sticky cards, baited with a Scentry lure hanging from the bottom edge of the sticky card. Check cards daily for the distinctive males with the spot on each wing. (Don't even bother looking for the females, that's for those of us who enjoy going blind peering through a microscope.)

Published on Leave a comment on 2020 SWD Monitoring Begins!

The 2020 SWD monitoring season is getting underway. We can only hope that the lousy spring weather, frost and freeze events, and delayed plant development have taken their toll on SWD, as well. (Are anyone's fingers crossed like mine?) So far, zero SWD has been caught in traps already set out.

We're using a new system, agpestmonitor, to report trap catch and the NY distribution map won't be on EDDMapS anymore; so change your links. We've got the map on the Cornell Fruit Resources SWD Distribution page, fruit.cornell.edu/spottedwing/distribution/ and on the NYS IPM SWD page, nysipm.cornell.edu/agricultural-ipm/fruits/pest-alerts-fruits/spotted-wing-drosophila/.

This picture of the NY County map checks off those counties where SWD monitoring is taking place in 2020.
The counties checked will have traps set for SWD in 2020. Counties colored gray have zero catch as of May 21, 2020.

Please join me in a round of appreciation for our team of Cornell scientists:

  • Andy Galimberti, Eastern NY Commercial Hort Program
  • Ariel Kirk, Steuben County CCE
  • Barb Neal, Tioga County CCE
  • Dave Thorp, Livingston County CCE
  • Don Gasiewicz, Wyoming County CCE
  • Elisabeth Hodgdon, Eastern NY Commercial Hort Program
  • Faruque Zaman, Suffolk County CCE
  • Grace Marshall, NYS IPM Program
  • Janet van Zoeren, Lake Ontario Fruit Program
  • Jim O'Connell, Ulster County CCE
  • Juliet Carroll, NYS IPM Program
  • Laura McDermott, Eastern NY Commercial Hort Program
  • Liz Tee, Lake Ontario Fruit Program
  • Lydia Brown, Hudson Valley Research Laboratory
  • Natasha Field, Eastern NY Commercial Hort Program
  • Peter Jentsch, Hudson Valley Research Laboratory
  • Sarah Tobin, Eastern NY Commercial Hort Program
  • Sharon Bachman, Erie County CCE

Among us all, we'll have 121 traps set in 23 New York State counties: Albany, Cayuga, Clinton, Columbia, Dutchess, Erie, Essex, Herkimer, Livingston, Niagara, Onondaga, Orange, Orleans, Rensselaer, Saratoga, Schuyler, Steuben, Suffolk, Tioga, Ulster, Washington, Wayne, and Wyoming. Traps are set mostly in blueberry and raspberry, one vineyard site in Suffolk County, and a few sweet cherry orchards in Eastern NY.

Janet van Zoeren and Liz Tee have joined forces with Grace Marshall and me on our tart cherry SWD research along Lake Ontario. These trap catch numbers don't go into the distribution map. But so far, zero SWD caught in tart cherry in the Lake Ontario region, too. Last year we were already catching SWD in tart cherry orchards by this date, so it's looking to be a slow start to SWD arrival.

We're using the Scentry traps and lures again this year. If you want to make your own traps, consult our write up on the fermenting whole wheat dough trap or plan on testing fruit with salt flotation as harvest times arrive. And speaking of harvests— I hope you all come through the spring frost and freeze events with a good crop and have a successful harvest this year!

Stay healthy, wash your hands, and meet online!

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