• Surround might deter stinkbugs

Surround might deter stinkbugs

  • June 1st, 2013

The brown marmorated stinkbug is a challenge to control for any fruit grower, and organic growers have the fewest strategies of all.

That’s why Win Cowgill and colleagues at Rutgers Cooperative Extension in New Jersey decided to test the effects of the kaolin clay product Surround on the stinkbug.

Surround is [...]

  • Science on the Hudson

Science on the Hudson

  • May 15th, 2013

Modern apple tree plantings have been made at the Hudson Valley Lab.
PHOTO BY RICHARD LEHNERT

Workers at Cornell University’s Hudson Valley Laboratory at Highland, near Poughkeepsie, New York, tend to see themselves as guardians of the gate. Whenever new diseases and insects come to challenge fruit growers in New [...]

  • SWD in Europe

SWD in Europe

  • May 15th, 2013

A female spotted wing drosophila lays eggs on a cherry.
PHOTO BY PETER SHEARER, OSU

Fluctuating populations of spotted wing drosophila from year to year are keeping growers in the Pacific Northwest guessing. After relatively little pressure in 2011, the fly came back with a vengeance in 2012.

Growers in Europe [...]

  • SWD challenges growers

SWD challenges growers

  • May 15th, 2013

Unlike the common drosophila flies, spotted wing drosophila will attack cherries before they are ripe.
PHOTO BY PETER SHEARER, OSU

After feeling little pressure from the spotted wing drosophila in 2011, Washington State cherry growers battled the pest through the 2012 season. And that’s likely to be the norm in [...]

  • Outreach: The final goal

Outreach: The final goal

  • May 15th, 2013

Field horticulturists from Chelan Fruit Cooperative examine beneficial insects during a hands-on workshop offered in February. Inset: Angela Gadino discusses natural-enemy monitoring techniques with Leo Garcia during a workshop preceding the WSU Sunrise Orchard Field Day last August. ­Photo by Stacy McDonald, WSU-TFREC

A stable integrated pest management program incorporates [...]

  • Heavenly host

Heavenly host

  • May 1st, 2013

Tree of heaven is an invasive species that outcompetes other plants by using allelopathic chemicals. Inset left: Tree of heaven can grow as large at 80 feet tall. Inset right: Seed pods on the tree of heaven are fed on heavily by brown marmorated stinkbug. When that food source [...]

Pest pressures challenge organics future

  • May 1st, 2013

The favorable climate and relatively low pest and disease pressure in the arid West have been blessings for organic tree fruit growers. Those conditions explain why more than 95 percent of the nation’s organic apple production comes from Washington, California, Arizona, Colorado, and Oregon. But increasing pest challenges and [...]

  • Your management program matters

Your management program matters

  • April 15th, 2013

LEFT: Above left: Adult A. mali are affected by most of the tested reduced-risk pesticides. RIGHT: The parasitic wasp Aphelinus mali attacks woolly apple aphids and leaves black, swollen aphid mummies behind.
PHOTO BY ELIZABETH BEERS, WSU

Pesticides are an important tool to protect crops from pest damage. While pesticides [...]

  • How integrated mite control works

How integrated mite control works

  • April 1st, 2013

One of the keys to integrated mite control was that the western predatory mite Typhlodromus occidentalis could effectively control spider mites under certain conditions. In the picture, a “typh” attacks the larger European red mite.
PHOTO COURTESY OF ELIZABETH BEERS, WSU

By the late 1950s, mite outbreaks had reached a [...]

  • Codling moth: It’s what’s for dinner.

Codling moth: It’s what’s for dinner.

  • March 15th, 2013

A sterilized carabid beetle before gut dissection.
Angela Gadino, WSU

Do you ever wonder what those earwigs, spiders, and other ground-dwelling predators eat in your orchard?

This question has been a main focus in the Enhancing Biological Control in Western Orchards Specialty Crop Research Initiative project. We know these predators are [...]

  • One last Guthion spray

One last Guthion spray

  • March 1st, 2013

Cherry fruit flies and apple maggots are hard to control with newer insecticides that must be ingested because they don’t feed much before laying their eggs.
PHOTOS COURTESY OF MICHIGAN STATE UNIVERSITY

Fruit growers in Michigan can use existing stocks of the insecticide azinphos-methyl (Guthion) one more time before it [...]

  • Stinkbug is strong flier

Stinkbug is strong flier

  • March 1st, 2013

The stinkbug injects saliva into the fruit and then sucks out the juice, causing brown areas in the flesh that can resemble bitter pit.
PHOTOS BY NIK WIMAN, OREGON STATE UNIVERSITY

The brown marmorated stinkbug continues to spread, coming alarmingly close to commercial fruit-producing regions of the Pacific Northwest, and [...]