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Posts From Don Cook, Research Entomologist

Mississippi State University Turn Row Field Day: Clarksdale, MS July 9, 2015

Mississippi State University Turn Row Field Day: Clarksdale, MS July 9, 2015

🕔14:29, 19.Jun 2015

An agronomic crops field day will be held at Cliff Heaton farms, just east of the intersection of Highway 61 and Highway 6. The field day will be held in the cotton field on the south side of the road. MSU Extension Specialists will be present to discuss topics in corn, cotton, grain sorghum, peanut, rice and soybean.

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Rice Stink Bug Update: June 19,2015

🕔09:36, 19.Jun 2015

As some of the earliest planted rice is getting close to heading, it is time to start thinking about rice stink bug. We have been sweeping headed grass around the Delta for the past two weeks to determine what kind of populations are around.

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Kudzu Bugs Numerous in MS Soybeans This Year

Kudzu Bugs Numerous in MS Soybeans This Year

🕔13:43, 17.Jun 2015

This year we have seen tremendous population growth and expansion of Kudzu bugs from previous years. We have treated some acres already that were at threshold and I am confident that there will be many more to come based on what we are seeing around the state including the Delta region.

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Sugarcane Aphids and Sorghum Midge: MS Grain Sorghum

Sugarcane Aphids and Sorghum Midge: MS Grain Sorghum

🕔10:07, 17.Jun 2015

Over the last 7-10 days reports of sugarcane aphids in grain sorghum are becoming more frequent across the state. To date, I am not aware of any applications going out yet but numbers within some fields are definitely increasing. So far I have had about 10 reports of findings from the Delta region ranging from Cleveland to south of Inverness.

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Reminder: Scout Schools Start Next Week

🕔07:32, 23.May 2015

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, weed identification, and

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Mixed Bag of Early Season Caterpillar Defoliators in Soybean

🕔07:23, 23.May 2015

Over the last couple of weeks I have had numerous calls about caterpillar pest in young soybeans. Most of these have been concerning beans that are still in the vegetative stages (V2-V5). The species that are being found are bollworm, yellowstriped armyworm, green cloverworm, granulated cutworm, alfalfa caterpillar, cabbage looper, garden webworm, and yellowstriped armyworm.

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Managing Stink Bugs in Seedling Corn

Managing Stink Bugs in Seedling Corn

🕔11:01, 8.May 2015

Over the last few weeks we have received numerous calls about brown stink bugs in seedling corn in the Delta region of the state. Stink bugs attack corn by feeding through the stem or even down in the whorl of small corn plants. Typically the area where they feed becomes chlorotic due to enzymes in their saliva.

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High Stink Bug Numbers Being Reported in Some Heading Wheat Fields

High Stink Bug Numbers Being Reported in Some Heading Wheat Fields

🕔07:36, 22.Apr 2015

Calls are starting to come in about stink bugs in heading wheat. It is not uncommon to find numerous stink bugs in wheat after head emergence. Species attacking wheat are typically rice stink bug and brown stink bugs but greens can sometimes be found. While it may seem very alarming, keep in mind it takes extremely high numbers to cause economic damage to heading wheat.

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2015 Scout Schools Set for Mississippi

2015 Scout Schools Set for Mississippi

🕔11:02, 8.Apr 2015

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, weed identification, and herbicide systems. There will be numerous hands on displays of insects, weeds, nutrient deficiencies in all major row crops, and fertilizer characteristics. CEU’s Provided: Nutrient Management = 1.5, Integrated Pest Management = 3, Crop Management = 1

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Seed Treatments, In-Furrow Sprays, and Granular Insecticides: What to do in Mississippi Field Corn

Seed Treatments, In-Furrow Sprays, and Granular Insecticides: What to do in Mississippi Field Corn Updated

🕔07:30, 1.Apr 2015

Although every major field crop we grow in Mississippi is responsive to at planting insect protection; field corn is perhaps the most consistent. Why is this?

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Best Management Practices for Tarnished Plant Bug

🕔17:50, 5.Mar 2015

The tarnished plant bug is the most important insect pest of cotton in the Mississippi Delta. Management with insecticides has become difficult in recent years and more tools are needed to economically manage this pest. Although it is early March and we are getting pair of unusual winter storms in the Delta, it is not too early to start making a plan for managing tarnished plant bugs in cotton. We have done a lot of research over the last several years with the goal of making tarnished plant bug management more economical for producers without sacrificing yield. See the attached document for more details on the best management practices listed below.

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Management Guidelines for Sugarcane Aphids in MS Grain Sorghum 2015

Management Guidelines for Sugarcane Aphids in MS Grain Sorghum 2015

🕔16:42, 24.Feb 2015

In 2014 a new pest of MS grain sorghum, Sugarcane aphid, made a dramatic entry infesting every county that grew the crop. This pest originally showed up in grain sorghum in Texas and Louisiana in 2013 with a single find very late in the season in Bolivar County, MS. By the end of 2014, this pest quickly spread throughout the entire southeast.

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Pyrethroids on Wheat in Mississippi: Does it Pay?

Pyrethroids on Wheat in Mississippi: Does it Pay?

🕔06:54, 30.Jan 2015

Its decision time in wheat. One of the questions we often get is “I am about to apply a herbicide, should I add a pyrethroid?” This is one of the few times I would have to say “Yes” to a question such as this. I think it makes sense to do so.

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2015 Future of Agriculture Graduate Student Meeting Program

2015 Future of Agriculture Graduate Student Meeting Program

🕔06:54, 27.Jan 2015

On February 5th 2015, Mississippi State University will host the third 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 a

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2015 Delta Ag Expo, Cleveland, MS – January 21 and 22, 2015

2015 Delta Ag Expo, Cleveland, MS – January 21 and 22, 2015

🕔11:27, 16.Jan 2015

Find attached the agenda for the 42nd Annual Delta Ag Expo to be held in Cleveland, MS on Wednesday, January 21 and Thursday, January 22, 2015. We hope to see you in attendance at the Bolivar County Ag Expo Center.

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Future of Agriculture Graduate Student Competition

Future of Agriculture Graduate Student Competition

🕔09:09, 1.Jan 2015

On February 5th 2015, Mississippi State University will host the third annual Future of Agriculture Graduate Student Competition. The competition will be open to M.S. and Ph.D. students working in production agriculture.

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Do Neonicotinoid Seed Treatments Have Value Regionally in Soybeans?

Do Neonicotinoid Seed Treatments Have Value Regionally in Soybeans?

🕔14:34, 31.Oct 2014

There has been a tremendous amount of scrutiny put on the neonicotinoid class of chemistry in recent years because of the potential link to declines in bee numbers. Researchers are working feverishly across the nation and the globe to determine the exact causes of bee decline. No doubt pesticides can and likely play a role to some degree, but there are many factors that also influence bee health such as habitat loss, Varroa mites, and diseases.

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Soybean Loopers Showing up in Late Soybeans:

Soybean Loopers Showing up in Late Soybeans:

🕔14:34, 5.Sep 2014

Soybean loopers are starting to show up in high numbers in many areas of the state. In many cases, soybeans are past the point where yield loss can occur, but there are many later planted soybeans that need to be protected for a while longer. Below are a few tips on when to treat and what to treat with.

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When to Terminate Bollworm Sprays in Late Season Bt Cotton

When to Terminate Bollworm Sprays in Late Season Bt Cotton

🕔16:00, 29.Aug 2014

We have had numerous calls over the last couple weeks about small, 2-5 day old larvae, under bloom tags in Bt cotton that is near, at, or beyond cutout. All of the research done to this point suggests that cotton is safe from bollworm damage when it reaches node above white flower 5 plus 300 heat units.

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Bean Leaf Beetle Numbers Picking Up in Mississippi Soybeans

Bean Leaf Beetle Numbers Picking Up in Mississippi Soybeans

🕔07:55, 22.Aug 2014

Bean leaf beetle numbers have been increasing steadily over the last couple weeks. We have actually made bean leaf beetle targeted sprays on a number of acres in recent days. Yield loss is caused by defoliation and less frequently by

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Terminating Insect Sprays in Mississippi Soybeans

Terminating Insect Sprays in Mississippi Soybeans

🕔11:56, 15.Aug 2014

We are quickly approaching that time of year where some of the earlier planted fields are turning color and others are approaching R6 vey quickly. Often times many of the insect pest we deal with “pile in” about this time and growers face the tough decision to treat when it may not pay back or try and race them to the end. We have devoted a lot of time and effort in recent years to evaluate and validate thresholds in soybeans under the current growing practices in Mississippi. Through these research efforts we have made several changes to insect thresholds and termination points for insect pest of soybeans in MS.

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Bollworms in Dual Gene Bt Cotton: Control and Expectations

Bollworms in Dual Gene Bt Cotton: Control and Expectations

🕔07:29, 15.Aug 2014

Over the last 7 days we have had numerous reports of high bollworm numbers in some BollGard II, TwinLink, and WideStrike fields in the Mississippi Delta. We have seen fields in the past that reach treatable levels but some reports are much higher than we have seen in recent years. At this time there does not appear to be any specific varieties that are adversely affected more than others. It appears to be a function of high pressure in isolated areas at this time.

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Transform Section 18 Amendment Allows 3rd Application to Sorghum

Transform Section 18 Amendment Allows 3rd Application to Sorghum

🕔16:05, 14.Aug 2014

White sugarcane aphid continues to be a serious problem in grain sorghum fields across Mississippi and the Mid-South. Because this is a brand new pest, there are many questions still unanswered. The Mid-South Entomology Working Group is frantically working on

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White Sugarcane Aphid Update – 8/1/2014

🕔09:48, 1.Aug 2014

White sugarcane aphid infestations are increasing across the state and more applications are going out to manage this pest. Over the last week to 10 days we have heard about numerous fields that have received a second application. Remember, that the Section 18 label for Transform states that no more than 2 applications can be made in a field.

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Managing Cotton Aphids in 2014

🕔16:11, 25.Jul 2014

We had a few calls over the last week about poor control of cotton aphid with Transform. In all of those cases, the field was actually sprayed for plant bugs with a 1.5 oz rate of Transform. That rate should be very effective on cotton aphid based on previous experience. As a result, we collected aphids from three different fields this week to test their susceptibility to Transform.

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