Brown rot surprises cherry growers

Tart cherry growers need to watch out for European brown rot as bloom arrives.

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  • Sterile insects get a boost

Sterile insects get a boost

  • November 1st, 2012

In 1959, the very nasty flesh-invading screwworm fly was eradicated from Florida using a new kind of technology called SIT—Sterile Insect Technique.

Since then, the technology has been widely used. It is effective against fruit flies. It’s also being tested against malaria-carrying mosquitoes and against tsetse flies that cause sleeping [...]

  • Research project tackles trunk diseases

Research project tackles trunk diseases

  • November 1st, 2012

Researchers will use nearly $1.8 million in grant money to develop new detection, extension, and research tools for managing wood-canker diseases of grapes and nut crops. Wood-canker diseases are a leading cause of vineyard and orchard removal in many parts of the country.

The research project was one of 14 [...]

  • Yeast tested as lure

Yeast tested as lure

  • November 1st, 2012

A species of yeast that University of California scientists have found in cherries and raspberries infested by the spotted wing drosophila could play a role in developing better lures to detect the pest.
The spotted wing drosophila, a pest that originated in Asia, first invaded ­California in 2008. If [...]

B.C.’s Sterile Insect Release program evolves

  • November 1st, 2012

In sterile insect release, male insects made sterile by exposure to gamma radiation are released in huge numbers to compete with normal wild males. When the sterile males win the mating game, females lay infertile eggs.

In mating disruption, female sex hormones are released in such volume that males can’t [...]

  • Seaweeds tested for pest control

Seaweeds tested for pest control

  • November 1st, 2012

Seaweed extracts are typically used by growers with the aim of improving tree growth and enhancing fruit yields and quality. Although the extracts are regulated and marketed as plant growth regulators, entomologists have been studying whether the products could also have benefits in terms of pest control.

Results of a [...]

  • Good to Know

Good to Know

Grape growers have been closely watching the spread of the brown marmorated stinkbug (Halyomorpha halys Stål). It was first identified in 1996 in Allentown, Pennsylvania, and has spread to 36 states. In 2010, a warm winter and spring caused an early population surge of BMSB that caught fruit and [...]

  • Fireblight expert retires

Fireblight expert retires

  • October 1st, 2012

Larry Pusey has used crab apples for his fireblight studies, as they can be manipulated to bloom year round in the greenhouse.
Geraldine Warner

For almost 20 years, Dr. Larry Pusey has been focused on researching a single problem—­fireblight.

As Pusey, 60, retires this month as plant pathologist with the U.S. [...]

  • Biocontrol veteran arms for battling brown marmorated stinkbug

Biocontrol veteran arms for battling brown marmorated stinkbug

  • October 1st, 2012

Pennsylvania State University’s Dr. David Biddinger is a veteran in the army battling for better biocontrol, and it’s had its ups and downs. But it has made him confident that patience and diligence can pay off.
Over the last ten years, he has been involved in the introduction of [...]

  • Clean vines keep viruses out

Clean vines keep viruses out

  • October 1st, 2012

Washington State’s grape industry teamed up with researchers and regulatory officials last summer to educate growers and ­vintners about the importance of clean plants and about the process of certifying plant materials.

Grapevine leafroll disease and other viruses have become a serious problem in Washington vineyards in recent years for [...]

  • Plant in clean ground

Plant in clean ground

  • October 1st, 2012

Grape selections that come out of the Clean Plant Center-Northwest Grapes are certified to be free of known grape viruses and crown gall disease, making them the cleanest in the nation. But years of work to test and maintain the clean plant material can quickly be undone by planting [...]

Good Stuff

  • October 1st, 2012

Bayer purchases AgraQuest
Bayer Crop Science, headquartered in Germany, has purchased the U.S. biological crop-protection company AgraQuest, Inc., for $425 million plus milestone ­payments, according to a Bayer news release.

AgraQuest, headquartered in Davis, California, is a global supplier of biological pest management products derived from natural organisms. Its production [...]

  • Stinkbug biocontrol

Stinkbug biocontrol

  • October 1st, 2012

Perdue University Extension

Brown marmorated stinkbug, an invasive insect from Asia, swept over the Mid-Atlantic states’ fruit crops like a tsunami in the fall of 2010, causing millions of dollars in damage to peaches and apples and leaving growers worried that it might be worse the next year.

It wasn’t. In [...]