• 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 [...]

Tips on how to avoid glyphosate damage

  • April 15th, 2012

As you approach weed control this spring, remember the word SUPPLY.

That’s the acronym Dr. Hannah Mathers developed to help orchardists and nurserymen prevent injury to their trees as they go about the process of controlling weeds with herbicides, especially with glyphosate.

The Ohio State University nursery and landscape extension horticulturist, [...]

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 [...]

  • Leafroller challenges cherry growers

Leafroller challenges cherry growers

  • April 1st, 2012

Obliquebanded leafroller larva
Ontario Ministry of Agriculture

Tart cherry growers need to use a modern, effective insecticide to control obliquebanded leafroller about two weeks before ­harvest—or risk delivering a contaminated crop that may be rejected by the processor.

That’s the advice of Dr. Nikki Rothwell, the entomologist who coordinates activities at [...]

EU regulations stifle fruit exports

  • March 15th, 2012

Pacific Northwest apple and pear exports to Europe have dropped dramatically since pesticide ­regulations were harmonized among members of the European Union. Restrictive pesticide residue limits of the European Union have required U.S. producers to adopt chemical use practices and compliance systems unique to the EU market, and that’s [...]

Three keys to successful pollination

  • March 15th, 2012

Queen bees lay eggs singly in cells of the honeycomb. After the eggs hatch, worker bees feed the larvae in the cells and cap them when the larvae pupate. A drone is pictured emerging from a cell.
PHOTOS BY KATHY KEATLEY GARVEY, UC, DAVIS.

The three major considerations in tree [...]

New pesticide safety guide released

  • March 1st, 2012

Many practical ideas to solve everyday problems with pesticide handling have been invented and used by growers throughout Washington State. The Pacific Northwest Agricultural Safety and Health Center, known as PNASH, studied these farm-bred and tested ideas and put them together in a new guide called Practical ­Solutions for [...]

Reduced risk?

  • March 1st, 2012

A three-year study just completed in Michigan apple orchards showed that reduced-risk pesticides—which growers are now adopting—are more damaging to the functional ecology of the orchards than the products they are replacing.

Orchards using these reduced-risk pesticides have fewer beneficial organisms to help control pests, so growers will likely incur [...]

How to conserve beneficials while fighting stinkbug

  • March 1st, 2012

Penn State University entomologist Dr. David Biddinger provided some rules of thumb growers can apply so as not to destroy all natural enemies and the integrity of integrated pest management programs as they go about controlling the brown marmorated stinkbug.

Insecticide selection—Choose the product least harmful to natural enemies, but [...]

  • U.K. growers try to lower residues

U.K. growers try to lower residues

  • December 1st, 2011

Jerry Cross is in charge of entomology and plant pathology at East Malling Research, where trials to minimize residues on fruit were successful.
Geraldine Warner

A “name and shame” policy by the British government several years ago prompted apple growers to make efforts to reduce the residues on their fruit.

The [...]

  • DriftWatch shows sensitive crops

DriftWatch shows sensitive crops

  • May 15th, 2011

These pushpin-like balloons identify sites that are sensitive to ill effects from spray drift. Growers register the sites so neighbors and custom pesticide applicators can exercise special care when spraying.

Midwestern farmers are finding a new way to ease some of the tensions caused by conflicting interests between field crop [...]

  • Fumigant regulations keep coming

Fumigant regulations keep coming

  • April 15th, 2011

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 [...]