Research tackles decay issue

A new project will focus on controlling decay and finding pollinizers that are not disease hosts.

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  • 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 [...]

  • 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 [...]

  • Nothing easy about organic weed control

Nothing easy about organic weed control

  • May 1st, 2013

Research in a newly planted organic vineyard showed just how difficult and labor-intensive weed control is under organic conditions. Not only can weeds and cover crops compete with young vines and reduce growth, but also mechanical means to control weeds can injure the tender trunks.

Dr. Carol Miles, extension specialist [...]

  • Heavenly host

Heavenly host

  • May 1st, 2013

For brown marmorated stinkbugs, the tree of heaven appears to be just that—a heavenly place to live.

“They can live there and rear their young there—they have absolutely no incentive to go anywhere else,” says Tim ­Lampasona, a research assistant at Cornell University’s Hudson Valley Laboratory in Highland, New York. [...]

Organic hurdles

  • May 1st, 2013

Growing apples in the eastern United States under USDA organic certification standards is not easy, and it’s still not clear whether there is much future in it outside of a few niche markets.

The recent invasion by the brown marmorated stinkbug poses one more hurdle, a high one, since this [...]

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 [...]

  • Pear growers surveyed on biological control

Pear growers surveyed on biological control

  • May 1st, 2013

Implementing stable biological control programs requires growers and pest managers to have a much better understanding of management actions against not only pests, but also their natural enemies. Sound management strategies must consider the phenology of both pests and natural enemies, but also optimal timing of management activities and [...]

  • Last Bite

Last Bite

  • May 1st, 2013

1  True or false? The Z-Trap is a device for killing Zetzellia mali?

2  How many gallons of fuel does it take to transport a carload of apples by rail from Washington State to New York City?
a. 34
b. 93
c. 169
d. 324

3  Which is the Pacific Northwest’s number-one plant for attracting [...]

  • Last Bite

Last Bite

  • April 15th, 2013

    1    Dagger nematodes are vectors of which virus?

a.    Prune dwarf
b.    Tomato ring spot
c.    Professor Plum pox
d.    Prunus necrotic ring spot

    2    Minerals make up what percentage of typical soil?

a.    5 percent
b.    45 percent
c.    63 percent
d.    95 percent

    3    What percentage of herbicides [...]

  • Hidden costs of rodent control

Hidden costs of rodent control

  • April 15th, 2013

Rodents—particularly voles, ground squirrels, and gophers—can have a big economic impact on orchard and vineyard production costs.
Rodents cause obvious damage to orchards and vineyards, especially to young trees that have yet to establish a large root mass. They also can girdle adult trees when they chew on the [...]

  • Growers rapturous over rodent control

Growers rapturous over rodent control

  • April 15th, 2013

Wildlife biologist Tim Pitz holds an adult golden eagle that was captured as part of a telemetry study. The study outfitted raptors with backpack transmitters to track their hunting, movement, and migration.
PHOTO B OURTESY OF NORTHWEST WILDLIFE CONSULTANTS

Efforts in the last few years to bring raptors into Oregon [...]

  • 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 [...]