Brown rot surprises cherry growers

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

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  • Bunch rot,  a different beast

Bunch rot, a different beast

  • February 15th, 2012

Michelle Moyer reminds growers who had powdery mildew problems last year to prepare for disease carryover this year. Botrytis bunch rot is a different beast than grape powdery mildew, says Dr. Michelle Moyer, Washington State University viticulture extension specialist. While it’s not a problem [...]

  • Strategies for controlling bacterial spot

Strategies for controlling bacterial spot

  • February 15th, 2012

The O’Henry peach variety is a poster child, highly susceptible to bacterial spot. Symptoms include fruit spots, leaf spots, and twig cankers. Bacterial spot is a serious problem for peach growers in the eastern United States, but no big worry for western growers. This [...]

Growers fear loss of antibiotics

  • February 15th, 2012

The shape of organic apple production in the future could well hinge on decisions made in the next few years about the continued use of antibiotics for control of fireblight.     Two key tenets of organic production are, don’t use synthetic substances and don’t cure a problem [...]

  • Manage resistance at the warehouse

Manage resistance at the warehouse

  • February 15th, 2012

Chang-Lin Xiao recommends that use of Penbotec and Scholar alternate from year to year to preserve their effectiveness against fungal pathogens like this blue mold on a Gala apple. Chang-Lin Xiao Resistance of the blue mold pathogen to the postharvest [...]

Let natural enemies play a role

  • February 1st, 2012

Growers today tend to think that integrated pest management has to do primarily with monitoring pests and scheduling ­pesticide applications.

But that’s not what IPM was envisioned to be at the outset, Dr. Nick Mills, entomologist with the University of California, Berkeley, told growers during the Washington State Horticultural Association’s [...]

Focusing on tomorrow today

  • December 1st, 2011

Apple, pear, and walnut growers will have several opportunities this winter to learn how to take advantage of natural enemies in their orchards for controlling key pests.

Washington State University entomologist Dr. Vince Jones expects to see a move towards more precise integrated pest management in apples and pears in [...]

  • Research spinoffs result in smarter sprayers

Research spinoffs result in smarter sprayers

  • December 1st, 2011

The variable output nozzles and adjustable louver, developed for this citrus sprayer as part of a specialty crop research project, should soon be available for tree fruit sprayers.

Using autonomous tractors to perform pesticide spraying is possible—and may one day be practical—but given the expense of equipment and liability concerns [...]

Spraying with sprinklers

  • December 1st, 2011

On a cold rainy day with apple scab threatening, wouldn’t it be nice to push a button labeled “Fungicide” and let the orchard spray itself?

Spraying is one of those things all orchardists have to do. Whether conventional or organic, they spend a lot of time filling sprayers, mixing chemicals, [...]

  • Pest help at your fingertips

Pest help at your fingertips

  • December 1st, 2011

Andy Kahn can use his iPhone to access WSU’s Decision Aid System, which automatically uploads weather data from the AgWeatherNet and provides pest predictions and control recommendations.

Washington State University’s online Decision Aid System has made life easier for integrated pest management consultant Andy Kahn of Wenatchee. He can log [...]

  • Grape industry goes after viruses

Grape industry goes after viruses

  • December 1st, 2011

Grapevine leafroll disease is easy to diagnose in red varieties, like this Cabernet Sauvignon vine, but more difficult in white varieties where the only symptom might be downward curling of leaves.

The Washington grape industry has put a bull’s-eye on grape viruses and diseases and is going after its target [...]

Good Stuff

  • December 1st, 2011

Ty Snyder promoted
C & O Nursery of Wenatchee, Washington, has promoted Ty Snyder to the position of orchard manager. Snyder has worked at the nursery since 2006 and earned an associate degree in agriculture from Wenatchee Valley College. He is managing the company’s Rocky Reach and Grant Road [...]

  • Mildew resistance quest continues

Mildew resistance quest continues

  • December 1st, 2011

Next year, Nnadozie Oraguzie will begin field testing a new generation of mildew-resistant sweet cherry selections as he works to combine disease resistance with high fruit quality traits.
Courtesy of Washington State University

While there is keen grower interest in development of cherry varieties resistant to powdery mildew, the resulting [...]