Surprise attack by redbanded stink bugs inspires new thresholds in Mississippi

by Bonnie Coblentz, MSU Extension Service

A game-changing insect caused significant problems in many Mississippi soybean acres, but good management allowed growers to finish the year with an average crop.

The U.S. Department of Agriculture estimated that by Oct. 23, Mississippi farmers were 92 percent finished harvesting the state’s soybean crop, which covered about 2.03 million acres this year. Insect and disease pressures made the effort challenging, but USDA predicts growers will harvest a state average of 48 bushels an acre. Continue reading

Target spot lowered soybean yields in Arkansas this year

by David Bennett, Delta Farm Press

While more producers push past 100-bushel-per-acre soybean yields, a problem disease appears to have kept a lid on the potential of many northeast Arkansas fields. Target spot, once thought a negligible problem, is now making its mark.

Dr. Lanny Ashlock, retired University of Arkansas soybean specialist and current chairman of the Natural Soybean and Grain Alliance, “couldn’t be happier that more and more growers are participating in (the state’s yield contest), and going over, 100 bushels.” Continue reading

Soybean cyst nematode-resistant soybeans are not immune to pest

In Southeast Farm Press

by members of Syngenta

Many soybean farmers don’t realize their fields may be a buffet for soybean cyst nematodes, despite the use of SCN-resistant soybean varieties.

These microscopic, parasitic worms lurk beneath the soil and can feed off soybean plant roots before any above-ground crop damage is noticed. By then, the SCN population has grown much more numerous and stronger, becoming difficult to control as well as a huge economic threat to soybean farmers. Continue reading

EPA Finds Neonicotinoid Seed Treatments of Little or No Benefit to U.S. Soybean Production

On October 16, the U.S. Environmental Protection Agency (EPA) released an analysis of the benefits of neonicotinoid seed treatments for insect control in soybeans.  A Federal Register notice inviting the public to comment on the analysis will publish in the near future.

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Stink bugs and kudzu bugs not as much of a problem this year

Both the brown marmorated stink bug and the kudzu bug made an appearance in Virginia fields this year, but not at the same high levels as in previous years which is good news, according to Virginia Tech Entomologist Ames Herbert.

Read the rest of the story in Southeast Farm Press.

Should NC soybean growers spray for stink bugs?

In Southeast Farm Press

by Dominic Reisig, NC State University

Right now we are witnessing typical end-of-season insect patterns.  Multigenerational bean leaf beetle populations densities are at their highest now and soybeans with developing seed are stink bug magnets.

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Looper numbers picking up in North Carolina soybeans

In Southeast Farm Press

By Dominic Reisig, NC State University Extension Entomologist

Looper numbers have really picked up in soybeans.  Loopers are migratory pests that sometimes show up late season and eat leaves, but not pods or seeds.

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Soybean leaf yellowing and curling widespread across Southeast

In Southeast Farm Press

By Dominic Reisig, North Carolina Extension Entomologist

Reports have been pouring in on a mysterious symptom seen across fields in North Carolina.  Oddly, these symptoms are widespread across the Southeast (including North Carolina, South Carolina, and Georgia), are only present in certain varieties, affect nearly every plant in the field, and are field-specific (one field will be completely affected, while a neighboring field of a different variety will be spared).

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Grower alert: Frogeye leaf spot now in Alabama soybeans

In Southeast Farm Press

by Paul Hollis

Frogeye leaf spot (FLS) has been observed in numerous fields in central and north Alabama in recent days, according to Ed Sikora, Auburn University Extension plant pathologist.

The disease, he explains, is caused by the fungus Cercospora sojina and can infect leaves, stems and pods of soybeans.

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Sudden Death Syndrome in Soybean showing up in Tennessee

From the UTCrops News Blog

by Heather Young Kelly, Extension Plant Pathologist

Sudden Death Syndrome (SDS) has started showing up in soybean fields in Tennessee. The cool, wet season Tennessee has experienced, similar to last season, has been conducive for the disease to develop in susceptible varieties.

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