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Cook, D.

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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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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White Sugarcane Aphid Update: 7/25/2014

White Sugarcane Aphid Update: 7/25/2014

🕔16:09, 25.Jul 2014

Over the past week we have had numerous opportunities to further observe spread and control of fields infested with white sugarcane aphids. We also have managed to get a couple of replicated small plot test out. Below are a couple bullet points based on recent experiences from walking numerous fields and talking to numerous folks around the state and Mid-South.

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Rice Stink Bugs in Mississippi Rice

🕔20:58, 24.Jul 2014

As more and more of the rice crop starts to head, it is time to start thinking about rice stink bug. We have been sweeping some grass around the Delta for the last few weeks, and the one general comment I will make is that populations have been fairly low in most areas. We have seen fairly high numbers in a couple places, but it was small patches of heading grass in isolated locations.

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Treating White Sugarcane Aphid: Decision Aid

Treating White Sugarcane Aphid: Decision Aid

🕔14:26, 15.Jul 2014

White sugarcane aphids (WSCA) have been blowing up quickly to treatable levels in several counties in Mississippi. Over the last few days here have been several field requiring treatments likely with more coming. Because this is a new pests for Mississippi, we have been following the lead of our colleagues in Texas and Louisiana who dealt with this in 2013. Below are some criteria that we put together based on what we know to date that will help in making a decision to treat WSCA.

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White Sugarcane Aphid Update and Impact on Midge Applications

White Sugarcane Aphid Update and Impact on Midge Applications

🕔17:35, 11.Jul 2014

Populations of the white sugarcane aphid are expanding and increasing across the state. We have confirmed the presence of white sugarcane aphid in grain sorghum in 7 counties in Mississippi (Fig 1) and there are likely more. The counties where white sugarcane aphids have been found include Bolivar, Washington, Humphreys, Quitman, Panola, Tunica and Oktibbeha.

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Management of Kudzu Bugs in Mississippi Soybeans

Management of Kudzu Bugs in Mississippi Soybeans

🕔11:19, 8.Jul 2014

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.

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Assessing Control of Tarnished Plant Bug in Prebloom Cotton

Assessing Control of Tarnished Plant Bug in Prebloom Cotton

🕔12:41, 27.Jun 2014

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

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Armyworms in Rice, Again!

🕔09:40, 27.Jun 2014

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.

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White Sugarcane Aphid: A Potentially Devastating Pest of Grain Sorghum

White Sugarcane Aphid: A Potentially Devastating Pest of Grain Sorghum

🕔10:25, 26.Jun 2014

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.

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Caterpillars Infesting Mississippi Field Corn

Caterpillars Infesting Mississippi Field Corn

🕔11:51, 13.Jun 2014

There are several caterpillar pests that commonly infest field corn in Mississippi. These include corn earworm, fall armyworm, and southwestern corn borer.

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

🕔16:01, 12.Jun 2014

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.

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Tarnished Plant Bug Nymphs Showing Up in Pre-Bloom Cotton

Tarnished Plant Bug Nymphs Showing Up in Pre-Bloom Cotton

🕔08:29, 11.Jun 2014

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.

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