Research tackles decay issue

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

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Neonicotinoids and bees

  • May 15th, 2012

A spate of new studies came out this spring, all of them seeking to link neonicotinoid insecticides to mortality in honeybees, bumblebees, and several kinds of native bees, and all of the studies getting wide publicity.

Reaction among agricultural entomologists varied. Some criticized the studies as being scientifically flawed. None [...]

  • 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 [...]

Tree safety is key issue with herbicides

  • April 15th, 2012

Choosing a herbicide program for an orchard is not so simple as choosing which herbicide kills what weeds and when. A careful reading of the label of any herbicide reveals a host of warnings, most of which deal with tree safety.

Wayne Mitchem, a weed control specialist from North Carolina [...]

Newer herbicides join the arsenal

  • April 15th, 2012

Among the newer herbicides that fruit growers should look at are Treevix, Alion, Matrix, Spartan, and Sandea, and there are new formulations of Sinbar and Rely, says Michigan State University weed control specialist Dr. Bernie Zandstra.

Treevix (saflufenacil) was new last year, introduced by BASF. It has both foliar and [...]

Who’s eating codling moth?

  • April 15th, 2012

This article is part of a series on the multistate project “Enhancing Biological Control in Western Orchards.”

How big a role can predators play in controlling codling moth in fruit orchards? That’s a question that Dr. Thomas Unruh, geneticist with the U.S. Department of Agriculture in Yakima, Washington, wants 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 [...]