• 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. [...]

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 [...]

  • Good to Know: New traps and lures for tree fruit pests

Good to Know: New traps and lures for tree fruit pests

  • March 1st, 2013

Generations of growers have monitored the key pests in their orchards. Over the years, traps and lures available to growers have evolved. Yet, the goal has always been to develop easy-to-use, sensitive, and selective trapping systems. Sorting through pails baited with fermenting fruit juice filled with a writhing mass [...]

Last Bite: Do you know your pests?

  • March 1st, 2013

1    In which plant has the brown marmorated stinkbug been most commonly found in Oregon?
a.    Tree of heaven
b.    Hop
c.    Cherry
d.    Holly
e.    Grape

2    Which of the following features cannot be used to distinguish spotted wing drosophila from the common fruit fly?
a.    Dark bands on [...]

Bug pheromone studied

  • March 1st, 2013

In tree fruit pest management, most monitoring and mating disruption technologies are based on phero­mones that female insects release to attract males. For example, sex pheromones are used to lure male codling moths to traps or in order to mimic females and confuse the males to reduce their chances [...]

  • A new tool for IPM

A new tool for IPM

  • March 1st, 2013

In recent years, the use of insect models has become an important tool in pest management. Current models help predict key seasonal events in a pest’s life history, such as adult emergence or egg hatch. Pest managers can use this information to better time monitoring activities or the application [...]

  • One last Guthion spray

One last Guthion spray

  • March 1st, 2013

Fruit growers in Michigan can use existing stocks of the insecticide azinphos-methyl (Guthion) one more time before it is phased out at the end of September this year. When should they use it?

Michigan State University tree fruit entomologist Dr. Larry Gut suggests they target flies—the apple maggot in the [...]

  • 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 [...]

  • Natural enemy inventory

Natural enemy inventory

  • February 15th, 2013

Herbivore-induced plant volatile (HIPV) lure to attract natural enemies in orchards.

Monitoring is one of the key components of any successful integrated pest management program, because it provides a window into what is going on in an orchard. This is true not only for pests but also for natural enemies. [...]