Events Calendar

August  2014
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Management of Kudzu Bugs in Mississippi Soybeans

kudzu bug nymphs

By now most folks have heard of Kudzu bugs. In fact, we have now confirmed them in 52 counties in Mississippi. Kudzu bugs, Megacopta cribraria, was first found in Georgia in 2009. Since that time it has spread rapidly across the southeast kudzu bug map 7_8and is now moving west in to Mid-southern states. It was first found in Mississippi in 2012 and now covers most of the state. . . . → Read More: Management of Kudzu Bugs in Mississippi Soybeans

Assessing Control of Tarnished Plant Bug in Prebloom Cotton

Tarnished plant bug numbers have actually started off at low to moderate levels this year in the Delta region but just in the last few days numbers seem to be picking up pretty good in a few locations and square retention is not optimal. I have mentioned on numerous occasions the inability to adequately access product . . . → Read More: Assessing Control of Tarnished Plant Bug in Prebloom Cotton

Armyworms in Rice, Again!

It appears that 2014 is going to be the year of the armyworm in rice. I have had numerous calls, texts, and Tweets about armyworms in rice over the last week. If you have not had them in your rice to this point, consider yourself very lucky. . . . → Read More: Armyworms in Rice, Again!

White Sugarcane Aphid: A Potentially Devastating Pest of Grain Sorghum

WSA_close up kerns

In 2013 a new aphid pest called the White Sugarcane Aphid, Melanaphis sacchari, was detected in grain sorghum in 38 counties in Texas, Louisiana, Oklahoma, and one county in Mississippi. This species has apparently been around for years but the hosts switch to grain sorghum appears to be new. This pest can be devastating to grain sorghum if populations reach high densities. In fact, some fields have seen 100% yield loss. Another major factor is this aphid is difficult to control with currently labeled products. . . . → Read More: White Sugarcane Aphid: A Potentially Devastating Pest of Grain Sorghum

Caterpillars Infesting Mississippi Field Corn

There are several caterpillar pests that commonly infest field corn in Mississippi. These include corn earworm, fall armyworm, and southwestern corn borer. . . . → Read More: Caterpillars Infesting Mississippi Field Corn

Green Stink Bugs in Non-Podding Soybeans: What to Do?

I have had numerous calls recently on green stink bugs in beans that are either vegetative or at R1-R2 stage with no pods. Numbers have ranged from 4-5 to 8-12 per 25 sweeps depending on the field. It is not uncommon to have a field or two on occasion to have threshold numbers of stink bugs before soybeans put on pods, but the number of fields this year being reported is certainly unusual. . . . → Read More: Green Stink Bugs in Non-Podding Soybeans: What to Do?

Tarnished Plant Bug Nymphs Showing Up in Pre-Bloom Cotton

The tarnished plant bug calls have started to come in on small cotton already. In some cases, consultants and growers are finding nymphs on very young cotton with only 1-2 squares. Similarly, some are reporting plant bug flagged terminals in pre-square cotton. We rarely have to spray pre-square cotton for plant bugs, but our threshold is 1 flagged plant per 10 row feet with bugs present. Although tarnished plant bugs are our most important and most consistent pest of cotton in the Delta, we usually don’t start finding nymphs until closer to first flower. . . . → Read More: Tarnished Plant Bug Nymphs Showing Up in Pre-Bloom Cotton

Influence of Rainfall on Insecticide Efficacy

Every year at some point during the season we seem to hit a rainy spell where it seems to rain at some point every day and we have showers widely scattered across the state. It started raining last Wednesday and we have had some rain everyday since then and it is currently raining in Stoneville right now (Monday morning). With that, the questions start about how long you need to spray before a rain to get acceptable control. . . . → Read More: Influence of Rainfall on Insecticide Efficacy

Delta Research and Extension Center’s Agronomic Crops Field Day, June 17, 2014

A corn, cotton, peanut, and soybean field day is scheduled for June 17th at the Delta Research and Extension Center in Stoneville, MS. The general theme of the field day will include pertinent information for mid-season row crop issues. . . . → Read More: Delta Research and Extension Center’s Agronomic Crops Field Day, June 17, 2014

Armyworms in Rice

Similar to most years when we have armyworms in wheat, there is the threat of having armyworms in seedling rice. We know of at least one rice field in Mississippi that was sprayed earlier this week. In general, damage from armyworms will not impact rice yields at this time of year unless they are beginning to reduce plant stand. This is especially true in hybrid rice planted at low seeding rates. . . . → Read More: Armyworms in Rice