Research tackles decay issue

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

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  • Coppers are a fit for organics

Coppers are a fit for organics

  • February 15th, 2013

Before the 1960s, there were no antibiotics to help orchardists control fireblight, one of the most destructive diseases of pears and apples. Copper materials were the mainstay back then.

But coppers are returning as fireblight control products, particularly for organic orchardists. Oxytetracycline, an effective antibiotic, could lose its place on [...]

  • Growers have several choices in fireblight control

Growers have several choices in fireblight control

  • February 15th, 2013

Pear and apple orchardists have a fairly broad field of products to use in controlling fireblight—and it should get even more crowded in the coming year with new registrations anticipated, says an Oregon State University plant pathologist.

Several new products have registrations pending and could be registered in 2013, said [...]

  • Fireblight, antibiotics, and the NOSB

Fireblight, antibiotics, and the NOSB

  • February 15th, 2013

Antibiotics have long been key disease control materials for fireblight, one of the few uses of antibiotics in plant agriculture. These materials are natural compounds produced by naturally occurring soil microorganisms. For the past several decades, the most common control for fireblight has been the use of antibiotic sprays [...]

  • Enhancing biocontrol

Enhancing biocontrol

  • February 1st, 2013

Knowing when and where natural enemies, such as the green lacewing, are active is critical in order to conserve them. Large inset: Garden orb web spider in apple orchard. Small inset: Adult ladybug feeding on aphids.

This is the first article in an eight-part series highlighting results of a five-year [...]

  • Last Bite

Last Bite

  • January 15th, 2013

1.    Which of the following is not a tree fruit disease?
a.    Black rot
b.    Blue mold
c.    White rot
d.    Pink rot
e.    Coral rot
f.    Gray mold
2.    Which of the following is not a fungicide?
a.    Topguard
b.    Centaur
c.    Nordox
d.    Regalia
3. [...]

  • Eradication not likely

Eradication not likely

  • December 1st, 2012

The light brown apple moth is about a quarter of an inch long.
PHOTO BY R. ANSON EAGLIN, USDA APHIS

State and federal officials, and growers and homeowners, in California have settled in for a long, contentious battle with light brown apple moth, an invasive leaf-rolling insect found there since [...]

  • 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 [...]