Gary Lawrence Mississippi State University nematologist examines cotton growing at the MSU RR Foil Plant Science Research Center in Starkville Miss on Aug 11 2015 Photo by MSU Ag CommunicationsKat Lawrence

Gary Lawrence, Mississippi State University nematologist, examines cotton growing at the MSU R.R. Foil Plant Science Research Center in Starkville, Miss., on Aug. 11, 2015. (Photo by MSU Ag Communications/Kat Lawrence)

Cotton maturing slowly because of wet, cold start

The cold, wet spring slowed cotton development by about 10 days, and now producers are battling plant bugs, bollworms and dry weather to bring their crops to harvest this year.

Darrin Dodds, cotton specialist with the Mississippi State University Extension Service, said bolls on most of the cotton across the state should begin to open by mid- to late August.

“In the past four years, we’ve seen cotton bloom 52 to 55 days after planting,” Dodds said. “This year, it was 62 to 65 days after planting in many cases. This was much like we used to see 20 years ago before breeding and management changes compressed that window.”

Dodds said almost all of the state’s cotton was planted in a 10-day window at the first of May. It rained for most of the next 10 days, and the cotton was unable to start growing strong while the fields were saturated.

The U.S. Department of Agriculture estimated Mississippi cotton growers planted about 305,000 acres of cotton this year, down from 420,000 acres in 2014 and far short of the recent high of 1.2 million acres set in 2006. USDA estimated 77 percent of the crop is in fair or good condition, and just 16 percent is rated as excellent.

Brian Williams, Extension agricultural economist, said cotton prices have been trending down since early July but rose sharply on Aug. 12. Cash prices are about 60.5 cents a pound, while October futures are now trading for just under 64 cents a pound.

“The primary price driver is the global supply/demand situation,” Williams said. “Lower yields combined with sharply lower acres will mean a much smaller cotton crop for the state this year.”

USDA’s latest report revealed factors that are expected to significantly affect the world’s supply of cotton. This news caused cotton prices to rise more than a penny a pound in one day.

“Most of the world’s major cotton-producing countries saw reductions in production, and the U.S. looks to have more abandoned acres, fewer planted aces and lower yields than previously expected,” he said.

Bollworm numbers high

Until harvest time, Mississippi growers are still dealing with dry weather, some herbicide-resistant weeds and, in some cases, high populations of bollworms.

Jeff Gore is an Extension and Mississippi Agricultural and Forestry Experiment Station entomologist at the MSU Delta Research and Extension Center in Stoneville. He said three types of cotton genetically modified to resist certain pests make up nearly all of the cotton growing in the state.

“This year, we’ve had to spray all three of these technologies for bollworms,” Gore said. “These pests have some tolerance to the Bt proteins in these technologies, and their populations are considerably higher than they were last year.”

While the pest-resistant varieties and insecticide sprays are effective and contribute to cotton profits, some insects will still be present after treatments, Gore said.

“Basically, very few things are absolute when it comes to insect control in cotton,” Gore said. “Growers and consultants need to manage their expectations of these technologies, as well as the foliar insecticide sprays we use to manage bollworms on these plants.”

He estimated that nearly 70 percent of the state’s cotton acreage has already been sprayed for bollworms, a rate that is higher than normal for this point in the season. Plant bug infestations have been lower than usual through early August, offering a cost savings to producers.

“When you add plant bug sprays with bollworm sprays, I think our insecticide budget is going to be about normal this year,” Gore said.

TAGS: Management
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