Leaf spot disease a major problem for Georgia peanut growers

by Kyle Dawson, University of Georgia

Georgia peanut growers are experiencing problematic leaf spot diseases this year due to susceptible varieties and weakening fungicide treatments, according to Albert Culbreath and Tim Brenneman, plant pathologists at the University of Georgia Tifton Campus.

Brenneman said this year’s dry conditions should have set up an environment that’s less favorable for leaf spot. Continue reading

Disease control is essential for high peanut yields

In Southwest Farm Press

by Ron Smith

Variety selection, rotation, field history, and fungicide applications play important roles in controlling foliar and soilborne diseases in Oklahoma peanuts, and with depressed commodity markets, the challenge is choosing the right variety, maintaining a proper rotation, and developing an efficient, economical, and effective fungicide program.

“Variety selection is the first decision,” says Oklahoma State University Extension Plant Pathologist John Damicone, who spoke at the recent Oklahoma Peanut Expo at Altus. “But, it has become a lot harder for growers to get the seed they want; they’ve had to plant a lot of varieties from the Southeast lately.” Continue reading

How this season is shaping up for peanuts

Virginia Tech specialists talk about varieties, fertilization and more on how the Southeastern peanut crop will fare this season. See the Virginia Ag Advisory.

Peanut-cotton rotations help prevent nematodes, weeds

In Southwest Farm Press

Peanuts are a good complement to cotton, especially in fields infested with cotton root knot nematodes, says Jason Woodward, Texas A&M AgriLife Extension plant pathologist at Lubbock. The microscopic pest won’t affect peanuts and the peanut root knot nematode won’t injure cotton.

He discussed the nematode factor and peanut best management practices by Skype hookup during the recent Red River Crops Conference at Altus, Okla., as well as disease issues, varieties, and market types. Continue reading

Root knot nematode is a real problem for peanuts

In Southeast Farm Press

Rome Ethredge, Contributing writer

I remember one year a grower was going to plant peanuts in a small field that had been in pasture for over 15 years. He said the last time he had peanuts there he had noticed some nematode damage at harvest time. We thought that with the good rotation, he shouldn’t have a problem. We were wrong.

The peanut root-knot nematode (Meloidogyne arenaria) is a force to be reckoned with and caused yield limiting damage again after all those years since we used no nematicide or resistant variety. Continue reading

UGA peanut agronomist fears Georgia’s peanut crop could be vulnerable to increased disease pressure next year

In Georgia FACES

By Clint Thompson, University of Georgia

This year’s peanut yields in Georgia was among the state’s highest, but University of Georgia peanut agronomist Scott Monfort fears that next year’s crop will be vulnerable to increased disease pressure.

Monfort, a guest speaker at Thursday’s (Jan. 21) Georgia Peanut Farm Show at the UGA Tifton Campus Conference Center in Tifton, Georgia, said Georgia farmers averaged 4,470 pounds per acre this year, the state’s second highest total over the past several years. However, because commodity prices remain low, he fears farmers are hesitant to grow cotton and corn crops at the acreage they’ve grown in the past. Continue reading

Dry summer leads to heavy spider mite damage in non-irrigated peanuts

An abnormally dry and typically hot August provided the perfect conditions for heavy spider mite damage in Georgia’s non-irrigated peanuts.

“This has been an incredibly heavy (year for insects and mites). I’ve had people tell me I may never see another one like this in my career,” said University of Georgia entomologist Mark Abney.

Continue reading