Research tackles decay issue

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

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Steps to manage canker

  • May 15th, 2012

Scientists have developed the following ­integrated approach to manage canker in cherries:

Avoid interplanting new with old trees. Rain can splash inoculum from old trees onto the young, healthy trees.
 Do not use sprinkle irrigation on trees for the first three years. In late summer, reduce the amount of water [...]

  • Not just a raincover

Not just a raincover

  • May 15th, 2012

This Dutch cherry orchard has a rain cover and is enclosed on the sides with netting to keep out insects and birds.
Photo by Geraldine Warner

So-called rain covers for cherries provide benefits far beyond just protecting the fruit from damage by rain or hail, says Reinhard Vöhringer, a German [...]

  • Bacterial canker requires an integrated approach

Bacterial canker requires an integrated approach

  • May 15th, 2012

A canker from the bacteria Pseudomonas syringae has developed in this young cherry tree.
Photo by Ken Johnson, OSU

With copper bactericides failing in some areas to control bacterial canker (Pseudomonas syringae) in cherries, growers will have to adopt an integrated approach, says an Oregon State University plant pathologist.

Bacterial canker [...]

  • Watch out, codling moth!

Watch out, codling moth!

  • May 1st, 2012

Left: A female Neoscona oaxacensis orb-weaving spider. Top: Cheiracanthium spiders are known as yellow sac spiders. They are usually pale colored and are 1/5 to 3/8 inch long. Gut-content analysis has shown evidence of feeding on codling moth. In central Washington, C. mildei is the species most commonly found. [...]

  • Choosing not to replant

Choosing not to replant

  • May 1st, 2012

An example of layering, in which a cane is brought from the old Cabernet Sauvignon cordon on the right to where a vine was missing, burying it so that a new sho ot would emerge to become the new trunk. The new vine, still connected to the old one, [...]

  • Organic viticulture is all about timing

Organic viticulture is all about timing

  • May 1st, 2012

Bill Powers used common materials—screen mesh, bottoms of plastic jugs—to construct his pest fan.
Melissa Hansen

The key to making organic practices effective in the vineyard boils down to timing, says organic wine grape pioneer Bill Powers. With more than two decades of organic farming experience, he’s used farmer know-how [...]

  • Lone organic grower finds it tough

Lone organic grower finds it tough

  • May 1st, 2012

Most of Owens’s orchards are surrounded by mature timber. On this mountain, he has three isolated orchards, each about a half mile apart. Luckily, infrastructure is good, as the landowner built good roads at his own expense.

Anthony Owens’s decision to go organic wasn’t popular with many of his fellow [...]

  • Promising organic herbicide found

Promising organic herbicide found

  • May 1st, 2012

These large crabgrass seedlings show the effect of preemergence application of manuka oil. Control is on the right. Concentrations of manuka oil increase toward the left. Large crabgrass was completely controlled with 1% of oil in water in the leftmost pot. Bleaching to the foliage in that pot is [...]

Niche product

  • May 1st, 2012

Sevin (carbaryl) will continue to be available for chemical thinning and pest control in tree fruits, says Dr. Jonathan Akins, director of regulatory affairs with the supplier Tessenderlo Kerley, Inc.

Tessenderlo recently bought Sevin from Bayer CropSciences. Akins said the company heard that rumors had been circulating that Sevin would [...]

  • Eastern organic apples

Eastern organic apples

  • May 1st, 2012

Until now, Owens has worked with orchards established conventionally and converted to organic.

This year, Anthony Owens will start his second decade as a grower of organic apples. That’s likely a record for his location.

Back in 2001, Owens and a few other growers in Henderson County, North Carolina, decided to [...]

  • Fumigant regulations keep coming

Fumigant regulations keep coming

  • April 15th, 2012

Soil fumigation, like this broadcast application, now requires that fumigation management plans be developed to include a long list of components.

The soil fumigation landscape has changed ­dramatically in the last few years. Effective postplant nematicides have been lost, use of methyl bromide as a soil fumigant is on the [...]

  • Read the label

Read the label

  • April 15th, 2012

Marestail, or horseweed, has been confirmed to be resistant to glyphosate in California.

Have you read your glyphosate herbicide label lately?

Today’s glyphosate herbicide is not the same as it was when first introduced as Roundup by Monsanto more than 35 years ago. Generic glyphosate is made in many countries around [...]