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Posts From Angus Catchot, Extension Entomologist

Rainfastness of Insecticides

Rainfastness of Insecticides

🕔12:46, 29.Jun 2011

Every year when afternoon thunderstorms start popping up, the phone starts ringing about rainfastness.  Rainfastness simply means the amount of time needed after application before a rainfall event for the product to still be effective.  One thing I have figured

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O.A. Cleveland Weekly Cotton Report:  June 16, 2011

O.A. Cleveland Weekly Cotton Report: June 16, 2011

🕔09:09, 21.Jun 2011

The macroeconomic lesson was the key to the cotton market this week as the sharply increased value of the U.S. dollar along with troubling economic news from across the globe sent cotton and most other commodities sharply lower. Cotton has now lost some 17 cents from the four week high. The slowing demand out of China, coupled with glowing official comments regarding a very promising Chinese crop, have offset the disastrous crop conditions in the U.S.

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Spider Mite Update and Recommendations

Spider Mite Update and Recommendations

🕔08:28, 17.Jun 2011

Spider mites have been becoming more widespread over the last two weeks. Currently we have quite a few acres that have required treatment for spider mites and several that have already received 2 applications. The hot dry weather we have been dealing with for the last couple weeks is making the problem worse, and the numerous thrips applications this year has further led to the increased problems with spider mites by removing beneficial insects early.

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Mississippi Crop Progress Report: June 12, 2011

Mississippi Crop Progress Report: June 12, 2011

🕔16:16, 16.Jun 2011

  Week ending June 12, 2011 Released: 3:00 P.M., June 13, 2011 According to the National Agricultural Statistics Service in Mississippi, there were 6.5 days suitable for fieldwork for the week ending Sunday, June 12, 2011. Dry weather conditions are

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Mississippi Agricultural Industry Council Meeting July 26-30, 2011

Mississippi Agricultural Industry Council Meeting July 26-30, 2011

🕔09:06, 16.Jun 2011

The 2011 Mississippi Agricultural Industry Council and Mississippi Seedsmen’s Association convention will be held again at beautiful Perdido Beach Resort in Orange Beach, Alabama, on July 26-July 30, 2011 The Registration Packet is enclosed and can also be found on

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Tarnished Plant Bugs Starting Off Big in 2011

🕔07:48, 16.Jun 2011

This is certainly starting off like a “big” plant bug year. Most everyone is reporting threshold to 3 and 4 X thresholds of adult plant bugs moving into cotton that is squaring. Most people are also reporting unusually high numbers of plant bugs in group IV flowering soybeans compared to most years and I had one report the other day of a corn field 4-8 nymph plant bugs per ear on purple silk corn.

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Proper Use of A Sweep Net

🕔07:19, 7.Jun 2011

Variability between people using sweep nets can be huge.  Assume four people go to the field and take 100 sweeps each.  I would almost guarantee you that each will come back with 4 different counts even if the insects are perfectly uniform. 

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Monitoring Square Retention Critical for Migrating Plant Bugs

Monitoring Square Retention Critical for Migrating Plant Bugs

🕔06:01, 7.Jun 2011

Square retention is a critical component of early season plant bug management. I would strongly encourage you to take square retention counts along with your sweep net counts prior to bloom. Not only does this help in the decision making process of treating plant bugs, but it also helps you to get a better idea of how the products you are applying are working.

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With Dry Weather Watch for False Chinch Bug Outbreaks

With Dry Weather Watch for False Chinch Bug Outbreaks

🕔17:09, 2.Jun 2011

False chinch bugs can be a major problem in cotton and soybean when they reach outbreak levels.  Every few years in MS we see some fields with extremely high numbers.  They are commonly found in dry years and seem to

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Scout for Stink Bugs in Corn During Ear Shoot Development

Scout for Stink Bugs in Corn During Ear Shoot Development

🕔11:54, 2.Jun 2011

While we have quite a few corn fields beginning to tassel, many more are have a little ways to go.  There is a period of about 10-14 days when ears shoots become visible or begin to bulge on the side

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Threecornered Alfalfa Hoppers Heavy in Some MS Cotton and Soybean Fields

Threecornered Alfalfa Hoppers Heavy in Some MS Cotton and Soybean Fields

🕔11:23, 2.Jun 2011

Based on calls I have received over the last week and what I am seeing in my own research plots, this is shaping up to be a big year for threecornered alfalfa hoppers

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Insect Scout School Dates Set

🕔15:49, 26.May 2011

This year there will be three insect scout schools provided.  Each insect scout school will cover insect pests of cotton, soybeans, and corn.  Scout schools are free of charge and open to everyone.  Detailed descriptions of pest biology, sampling, and

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Thrips Species Present in Mississippi Cotton

🕔14:34, 26.May 2011

By now everyone is fully aware that we have been and still are experiencing extremely high levels of thrips in cotton. To date, many fields have been treated with foliar insecticides and several have required repeat applications due to extremely high numbers and frequent re-infestations.

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Extremely High Thrips Numbers in Mississippi Cotton

🕔08:11, 20.May 2011

In the last 7 days there have been numerous reports of extremely high thrips numbers infesting cotton fields across the state. Although nearly all cotton has an insecticide seed treatment on the seed, high numbers of adults are overwhelming the seed treatments in many cases.

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Mississippi Crop Progress Report:  May 15, 2011

Mississippi Crop Progress Report: May 15, 2011

🕔12:15, 17.May 2011

 Week ending May 15, 2011 Released: 3:00 P.M., May 16, 2011 According to the National Agricultural Statistics Service in Mississippi, there were 4.8 days suitable for fieldwork for the week ending Sunday, May 15, 2011. Most of last week was

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Mississippi Crop Progress Report: May 9, 2011

Mississippi Crop Progress Report: May 9, 2011

🕔14:39, 11.May 2011

Week ending May 8, 2011 Released: 3:00 P.M., May 9, 2011 According to the National Agricultural Statistics Service in Mississippi, there were 4.4 days suitable for fieldwork for the week ending Sunday, May 8, 2011. Last week started with rain

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Armyworms Showing up in a Few Mississippi Wheat Fields

Armyworms Showing up in a Few Mississippi Wheat Fields

🕔12:41, 3.May 2011

In the last 7 days there have been a few calls coming in about armyworms in wheat.  Numbers have ranged from 1–12 per square foot.  Mississippi has always used a threshold of 5-6 larvae per square foot through the milk

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Mississippi Crop Progress Report: May 1, 2011

Mississippi Crop Progress Report: May 1, 2011

🕔09:58, 3.May 2011

Week ending May 1, 2011 Released: 3:00 P.M, May 2, 2011 According to the National Agricultural Statistics Service in Mississippi, there were 2.7 days suitable for fieldwork for the week ending Sunday, May 1, 2011. The deadly storms that moved

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Treating Stink Bugs in Small Corn

Treating Stink Bugs in Small Corn

🕔09:32, 3.May 2011

Over the last 10 days I have had several calls about stink bugs in small corn.  There have been some fields treated, however, at this time it has not been widespread.  Stink bugs damage small corn by feeding through the

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O.A. Cleveland Weekly Cotton Report: April 29th, 2011

O.A. Cleveland Weekly Cotton Report: April 29th, 2011

🕔08:46, 2.May 2011

New York futures, led by the expiring May contract and the spot July contract, continued its three week downturn. However, while the new crop December did lose some 500points, the new crop maintained most of its bullish posture owing to severe weather problems in the Southwest and increasing problems for growers in the Midsouth.

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High Numbers of Stink Bugs Showing Up in Some Mississippi Wheat Fields

High Numbers of Stink Bugs Showing Up in Some Mississippi Wheat Fields

🕔07:46, 13.Apr 2011

We are beginning to see stink bugs show up in some wheat fields in the delta. It is not uncommon to find stink bugs in wheat after head emergence. However, it takes extremely high numbers to cause economic damage to heading wheat.

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Mississippi Crop Progress Report:  April 11, 2011

Mississippi Crop Progress Report: April 11, 2011

🕔07:22, 13.Apr 2011

According to the National Agricultural Statistics Service in Mississippi, there were 4.6 days suitable for fieldwork for the week ending Sunday, April 10, 2011. Fieldwork was slowed down last week by rain showers, but the outlook for farmers is generally

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O.A. Cleveland Weekly Cotton Report: April 8, 2011

O.A. Cleveland Weekly Cotton Report: April 8, 2011

🕔10:42, 12.Apr 2011

Cotton prices found mostly clear sailing this week on the heels of last weeks planting intentions report. As it did in last Friday’s trading the new crop December contract led the market all the way to 145.00 cents before falling back to 136.00 cent level. Too, the nearby old crop May contract jumped above two dollars again, working the 207‑212 range at week’s end.

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Aphid Numbers Crashing in Mississippi Wheat Fields

Aphid Numbers Crashing in Mississippi Wheat Fields

🕔09:49, 7.Apr 2011

Over the last 5-7 days aphid numbers have started crashing in wheat fields around the state. Our wheat test in Starkville went from several hundred per row foot on April 1st to less than 10 on April 4. Many consultants and dealers have told me they are seeing the same thing. A lot of this can be attributed to parasitized aphids from Lysiphlebus testaceipes (small parasitic wasp) but other cases may be contributed to various diseases that will take out aphid populations.

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Mississippi Crop Progress Report April 3, 2011

Mississippi Crop Progress Report April 3, 2011

🕔11:16, 6.Apr 2011

According to the National Agricultural Statistics Service in Mississippi, there were 4.2 days suitable for fieldwork for the week ending Sunday, April 3, 2011. A week of wet weather persisted with thunderstorms and scattered showers sweeping through Mississippi. The rain

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