MSU Extension Service and MAFES researchers have compiled the following suggestions and information regarding replanting and managing row crops after the flood. Also included is post-flood crop insurance information.
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.
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.
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
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
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
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
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.
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.
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
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
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.
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.
Over the last week I have received several calls of very high aphid numbers in wheat. The two species being found are Bird Cherry-Oat aphids (BCO) and Greenbugs. I have had reports of treatable levels of Greenbugs being found but
Seems like every grower meeting we go to, we are hearing more and more about wild pigs destroying crops in some areas of the state. There are some producers that are even switching what crops they grow soley based on damage from wild hogs.
One of the objectives of this program is to identify key production limitations, so the Mississippi State University Extension Service and Experiment Station can better direct efforts to develop innovations for our specific problems. This is a summary of such limitations documented during the past few years.
The 2010 Row Crop Short Course was held at Mississippi State University on December 6 – 8, 2010. As we expanded the Short Course in 2009, we also have adopted technology to record the oral and visual portions of the presentations.
Cotton producers in Mississippi planted approximately 425,000 acres of cotton in 2010. This was a 33% increase in acres compared to 2009. Approximately 5% of cotton in MS was planted to transgenic single gene Bt varieties and 90% of cotton acres was planted to dual toxin transgenic Bt varieties. The most popular varieties planted in 2010 were
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