New cotton disease in Alabama comes from Brazil

In Southeast Farm Press

by Patrick Shepard

A virus that is previously known to be vectored by aphids into cotton has been recently identified as the primary suspect virus from limited samples of cotton in Alabama. Similar symptomology has been reported in the coastal counties of Alabama, Georgia and the Florida Panhandle.

“The cotton blue disease (CBD) symptomology was observed at the end of 2016 by one of my former graduate students, Drew Schrimsher, in his grower cotton variety trials,” says Auburn University plant pathologist Dr. Kathy Lawrence. Continue reading

Keep a watch out for foliar diseases this summer

In Delta Farm Press

A wet planting season pushed some growers to get soybeans and other crops in the ground.

And if excessive rainfall continues, farmers should be prepared for the threat of more mid- and late-summer disease pressure, says a University of Arkansas Extension plant pathologist.

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First sighting of soybean rust on U.S. crop made in Alabama

In Southeast Farm Press

The first U.S. sighting of soybean rust on soybeans for the current growing season was made this week in a sentinel plot in central Alabama’s Autauga County.

The disease was detected in a soybean sentinel plot in Prattville in Autauga County on Aug. 3. According to Ed Sikora, Auburn University Extension plant pathologist, the soybeans were at the R5 growth stage with 100 percent canopy closure. Incidence of soybean rust within the plot was less than 1 percent. The disease was previously reported on kudzu in Baldwin County, near the Alabama Gulf Coast.

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Georgia growers learn some lessons about crop diseases this year

By Robert C. Kemerait, UGA Cooperative Extension

Weather conditions played a big role in the types of diseases that were found on Georgia crops in 2013.

Rainfall delayed harvest for some cotton and soybean growers and brought diseases to peanuts, cotton and corn.

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Soybean rust in full force this year in Alabama

From Southeast Farm Press

If you’ve ever thought about spraying a fungicide on soybeans, this would be the year to do it, says Ed Sikora, Auburn University Extension plant pathologist.

“All fields in Alabama, for the most part, have now been exposed to the soybean rust pathogen. We had a lot of soybeans planted late this year, and double-cropped beans were delayed due to wet conditions. These beans are at extreme risk. If you’ve ever thought about spraying a fungicide, this is the year to do it,” said Sikora at the recent East Alabama Crops Tour.

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Late-planted soybeans may be more prone to diseases

In Southeast Farm Press

Soybeans were likely planted later than ever this year, and over a large geographic area in the Upper Southeast.

And North Carolina State University Plant Pathologist Steve Koenning says some of these beans may be exposed for longer periods of time to more than usual disease pressure.

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Frequent rain making disease control difficult in Georgia crops

In Southeast Farm Press

By Robert C. Kemerait, UGA Cooperative Extension

Rain may be a good thing, but too much can become a problem for Georgia growers when it comes to disease control.

The torrential rains Georgia has experienced in recent weeks have created perfect conditions for fungal and bacterial diseases on peanuts, cotton, corn and soybeans.

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