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Posts From Don Cook, Entomologist

Identifying Late Season Soybean Growth Stages

Identifying Late Season Soybean Growth Stages Updated

🕔22:19, 19.Aug 2016

As we approach soybean physiological maturity, determining the specific soybean growth stage can aid in several important management decisions. Distinct differences exist between the R6 and R6.5 growth stage.

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Numerous Caterpillars Showing Up in Cotton

Numerous Caterpillars Showing Up in Cotton Updated

🕔07:32, 13.Aug 2016

Over the last couple weeks, we have received numerous calls about multiple caterpillar pests in Bt cotton. By far, the most common and widespread species has been bollworm, but populations of fall armyworm are also high and we have even heard

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Diamide Insecticides and Soybean Looper Management

Diamide Insecticides and Soybean Looper Management Updated

🕔13:02, 12.Aug 2016

Since the introduction of the diamide insecticides (Belt, Prevathon, Besiege), soybean loopers have essentially been a non-issue. We all have plenty of data showing 24-35 day residual control of soybean loopers, however, the long residuals are a blessing and curse

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Stink Bugs and Redbanded Stink Bugs in Soybeans- What to do?

Stink Bugs and Redbanded Stink Bugs in Soybeans- What to do? Updated

🕔09:13, 12.Aug 2016

Over the last few weeks we have been getting more and more calls about redbanded stink bug in soybeans. Redbanded stink bugs (RBSB) are voracious seed feeders, infest fields later, and are more difficult to control than greens, southern greens,

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Tarnished Plant Bugs in 2016

Tarnished Plant Bugs in 2016 Updated

🕔08:07, 29.Jul 2016

What has happened with tarnished plant bug this year? That has been the million dollar question this year in cotton. Numerous consultants have told us that tarnished plant bug populations are lower than they have ever seen in their careers

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Fall Armyworms in Rice: 2016

Fall Armyworms in Rice: 2016 Updated

🕔09:40, 23.Jul 2016

It looks like 2016 is shaping up to be another big year for fall armyworm in rice. As a reminder, our threshold in rice at this point in the season is 5 per 10 sweeps or when significant damage occurs.

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Armyworms and Bollworms Becoming Widespread in Mississippi Crops

Armyworms and Bollworms Becoming Widespread in Mississippi Crops Updated

🕔09:22, 23.Jul 2016

Bollworm: We have had numerous reports of bollworm (soybean podworm corn earworm) moths being flushed and small larvae in cotton and soybeans over the last couple weeks. This past week seemed to be the turning point in soybean. Nearly anyone with

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Southwestern Corn Borer Trap Counts, July 23, 2016

Southwestern Corn Borer Trap Counts, July 23, 2016 Updated

🕔09:00, 23.Jul 2016

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Southwestern Corn Borer Trap Counts, July 16, 2016

Southwestern Corn Borer Trap Counts, July 16, 2016 Updated

🕔17:19, 15.Jul 2016

 

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Kudzu Bugs in Mississippi Soybeans

Kudzu Bugs in Mississippi Soybeans Updated

🕔12:22, 11.Jul 2016

Over the last couple weeks we have begun to get numerous calls about kudzu bugs infesting soybeans. Call are coming from all over the state. We no longer keep up with county level infestations but its safe to say they

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Southwestern Corn Borer Trap Counts, July 9, 2016

Southwestern Corn Borer Trap Counts, July 9, 2016 Updated

🕔17:06, 8.Jul 2016

Southwestern corn borer trap counts remained very high in some areas this week. The highest counts reported were in Sunflower, Quitman, and Coahoma counties.

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Southwestern Corn Borer Trap Counts: July 2, 2016

Southwestern Corn Borer Trap Counts: July 2, 2016 Updated

🕔19:53, 1.Jul 2016

Southwestern corn borer trap catches appear to be peaking this week. Several counties had individual traps with numbers at or near the current threshold and a couple well above threshold. As a reminder, the current threshold is 50 per trap

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Southwestern Corn Borer Trap Counts: June 25, 2016

Southwestern Corn Borer Trap Counts: June 25, 2016 Updated

🕔20:08, 24.Jun 2016

Southwestern corn borer numbers increased significantly in some areas this week. The highest numbers were 377 caught in Leflore County and 450 caught in Coahoma County.  The current threshold in the 2016 Insect Control Guide suggests spraying when 50 moths are caught

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Caterpillars Infesting Field Corn

Caterpillars Infesting Field Corn Updated

🕔15:57, 24.Jun 2016

Much of the corn has reached the reproductive stages, while some is still in the vegetative stages. Several caterpillars, including fall armyworm and corn earworm, can infest corn, especially non-Bt corn, during both stages of development.

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Southwestern Corn Borer Trap Counts: June 18, 2016

Southwestern Corn Borer Trap Counts: June 18, 2016 Updated

🕔22:40, 17.Jun 2016

Overall, southwestern corn borer traps remained low throughout the state. However, one trap in Leflore county captured 178 moths over a 7 day period. Although they do not appear to be widespread, this indicates that there may be pockets with

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Southwestern Corn Borer Trap Counts: June 11, 2016

Southwestern Corn Borer Trap Counts: June 11, 2016 Updated

🕔18:29, 10.Jun 2016

All southwestern corn borer trapping locations did not report this week, but numbers were very low across the state. The highest numbers were in the south Delta, but still well below threshold with the highest number being 22 in one trap

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Rice Disease Calendar

Rice Disease Calendar Updated

🕔11:53, 28.May 2016

Included in this blog post are a rice disease calendar. Information presented in the calendar deals with the most commonly observed rice diseases throughout the MS rice production area. In general, the occurrence of diseases on rice will depend on the planting date, general field history as related to previous crop, and the environmental conditions throughout the season.

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Comment Period is Open for Transform Section 18 Updated

🕔21:02, 13.May 2016

In March, the Mississippi Bureau of Plant Industries and other states in the Mid-South submitted Emergency Exemption (Section 18) requests to use Transform for tarnished plant bug control in cotton. The reason for this request is that the original registration

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Rice Seed Treatments and Cool Wet Soil Conditions

Rice Seed Treatments and Cool Wet Soil Conditions Updated

🕔14:30, 3.May 2016

Every year we have a point in the planting season where we start getting questions about how heavy rainfall and cool temperatures affect seed treatments in rice. The one thing to remember is that the clock starts ticking on the

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Cutworms Showing Up in Mississippi Crops

Cutworms Showing Up in Mississippi Crops Updated

🕔14:32, 2.May 2016

We have had several calls over the last week about cutworms reducing plant densities in cotton, soybean, and non-Bt corn. Based on the number of calls, it appears that cutworm populations are much higher than they have been the last several

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2016 Scout Schools

2016 Scout Schools Updated

🕔19:04, 18.Mar 2016

Mississippi State University will be hosting 5 scout schools this year. We have transitioned over the years to make these trainings much more diverse than insect pest alone. This year we will be including insects, disease, fertility, and herbicide symptomology.

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Seed Treatments and Thrips 2016: Expectations

Seed Treatments and Thrips 2016: Expectations Updated

🕔11:42, 2.Mar 2016

Although commodity prices have not been exciting for any crop we grow, Mississippi is expected to see cotton acres increase as much as 40% this year. As we have been traveling the meeting circuit, the common denominator has been, “What inputs can we cut in an off year?” This has been asked of all crops lately, not just cotton. It seems that seed treatments are the first thing that comes up during this conversation in every crop; however, this is not a viable option in cotton.

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Tarnished Plant Bug IPM and Impact of the Transform Label Cancellation Updated

🕔08:12, 5.Feb 2016

We posted an article last spring about utilizing several best management practices in an overall IPM program to manage tarnished plant bug in cotton. We included a pdf that highlights all of the research we have conducted over the last

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Future of Agriculture Graduate Student Competition

Future of Agriculture Graduate Student Competition Updated

🕔13:39, 21.Dec 2015

On February 4th 2016, Mississippi State University will host the fourth annual Future of Agriculture Graduate Student Competition. The competition will be open to M.S. and Ph.D. students working in production agriculture. Over the last several years, there has been

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2016 Insect Control Guide Now Available

2016 Insect Control Guide Now Available Updated

🕔07:59, 16.Dec 2015

The 2016 Insect Control Guide for Agronomic Crops is now available online. Hard copies will be available in January. Notable changes this year include the removal of pyrethroid insecticides for bollworm control in all crops due to resistance and poor

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