ARM studied in cherries

  • April 1st, 2011

In the cherry orchards of northwest Michigan around Traverse City, growers use a mixture of methods to control their archenemies: cherry fruit fly, plum curculio, and cherry leaf spot.

Some growers use airblast sprayers while others use air-curtain sprayers. Some run their sprayers down the middle of every tree row [...]

  • Does ARM still work in modern orchards?

Does ARM still work in modern orchards?

  • April 1st, 2011

Penn State entomologist Dr. Larry Hull has spent much of his 35-plus-year career perfecting and advocating a technique called alternate row middle (ARM) spraying for insect control. The technique started in New York, came to Pennsylvania in the 1960s, and quickly caught on and became widely used by growers [...]

  • Drosophila parasitoid found

Drosophila parasitoid found

  • March 15th, 2011

A female wasp attacks a spotted wing drosophila pupa
PhotoS COURTESY OF PETER SHEARER AND PRESTON BROWN, OSU

Scientists at Oregon State University have identified a parasitoid of the spotted wing drosophila, raising hopes that in the future this natural enemy might help control the pest.

It’s a small wasp from [...]

  • Watch out for the good guys

Watch out for the good guys

  • March 15th, 2011

Researchers have been testing different types and colors of traps for monitoring beneficial insects. This white sticky trap, placed next to an insect attractant, caught many lacewings.
Photo by Geraldine Warner

New monitoring tools are providing a window into the biological control taking place in orchards, and it looks like [...]

  • Stinkbugs on the move

Stinkbugs on the move

  • March 1st, 2011

Adult brown marmorated stinkbugs feed on ripe peaches, a preferred fruit.

A monitoring trap in a commercial apple orchard drew large numbers of bugs. Some traps attracted 2,000 bugs.

The brown marmorated stinkbug, Halyomorpha halys, is rapidly becoming more than a nuisance, a curiosity, and a bug with a funny name. [...]

  • Defense strategies

Defense strategies

  • March 1st, 2011

Brown marmorated stinkbug nymphs develop through five instars, all feeding on fruit. Nymphs and adults cause both external and internal injury.
Photo by Tracy Leskey

One of the easier ways of monitoring the brown marmorated stinkbug’s invasion status is by listening to homeowner complaints, says Dr. Tracy Leskey, the U.S. [...]

  • Grower battles bug

Grower battles bug

  • March 1st, 2011

PHOTO BY TRACY LESKEY

Gerrardstown, West Virginia, apple grower George Behling is one very concerned grower. He first saw this stinkbug two years ago, but didn’t distinguish it at first from ordinary stinkbugs, which have been a pest on his York apples over the years. This last year, the distinction [...]

  • Ready for drosophila

Ready for drosophila

  • March 1st, 2011

Spotted wing drosophila larvae that hatch from eggs inside the fruit sometimes pop out and walk around on the surface. The spotted wing drosophila can pupate inside the cherry, outside the cherry, or halfway out.
PHOTOS BY ELIZABETH BEERS, WASHIHINGTON STATE UNIVERSITY

The Washington tree fruit industry should be better [...]

  • Will the new pest go after grapes?

Will the new pest go after grapes?

  • March 1st, 2011

Grape growers learn to identify spotted wing drosophila at a Washington State Grape Society meeting.
Photo by Melissa Hansen

Preliminary tests conducted last fall indicate that Washington State grapes might not be attractive to the spotted wing drosophila, an invasive new pest that has popped up across much of U.S. [...]

  • Sap beetles attacked Michigan cherries

Sap beetles attacked Michigan cherries

  • March 1st, 2011

The strawberry sap beetle was one of three species identified in cherry orchards. The other two were dusky and picnic sap beetles.
Photo by Stephen Luk

Cherry growers around Traverse City, Michigan, were plagued last season by an unusual attack of sap beetles. Three species of them were found, all [...]

  • Obliquebanded leafroller bugs tart cherry growers

Obliquebanded leafroller bugs tart cherry growers

  • March 1st, 2011

Leafroller larvae form webs and use them to curl leaves into protective structures.
Photo Courtesy Of Washington State University

Obliquebanded leafroller has been increasing as a problem in tart cherries in recent years, where the black-headed green larvae are a highly undesirable contaminant at harvest time in July.

Entomologist Dr. Nikki [...]

  • Researchers tackle apple weevil

Researchers tackle apple weevil

  • March 1st, 2011

Small and black, the apple flea weevil looks a bit like its larger snout beetle relative, the plum curculio.
Photo by matt grieshop, michigan state university

A coalition of partners in four Midwestern states has applied for grant funding to respond to three new insect threats—spotted wing drosophila, brown marmorated [...]