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UGA plant pathologist cautions Georgia grape growers against fungicide resistance to downy mildew

By Clint Thompson, University of Georgia

Fungicide resistance to downy mildew disease is a growing concern for Georgia grape producers. University of Georgia Extension Fruit Disease Specialist Phil Brannen advises growers to modify their fungicide applications to combat the increasing resistance.

“If producers properly rotate the chemical ingredients (used in the different fungicides) that treat for downy mildew, this will help our chemical classes be sustainable for years to come,” Brannen said. “We have already essentially lost one of our fungicides — the quinone outside inhibitors (Qol) — and we simply can’t afford to lose more classes if we are to manage this aggressive disease in the future.” Continue reading

Growers will need to use care with new herbicides

In Southeast Farm Press

by Roy Roberson

Combinations of popular herbicides like glyphosate, glufosinate, 2,4-D and dicamba will be making their way into the market place in the next few years, and while these new products will be a boon to many farmers, the side effects can likewise be an economic liability if these lethal combinations are not used correctly.

Continue reading

Scientists use NIFA SCRI grant to improve breeding grapes for disease

Today’s USDA blog highlights a project breeding grapes that combine good taste and quality with disease resistance. The project, called VitisGen, is funded by a USDA Specialty Crop Research Initiative grant.

Read the story at USDA’s website.