Postemergence control of Palmer amaranth in soybean
Where Palmer amaranth has emerged, it is imperative to make a timely application of a postemergence herbicide.
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Soybean Fungicide Management Considerations for 2013
Over the past week we’ve received two reports of frogeye leaf spot in reproductive soybeans. In both cases, a susceptible variety was planted and frogeye leaf spot symptoms can be clearly distinguished throughout the canopy. Following the observation and reports of strobilurin-resistant frogeye leaf spot in two fields in MS last year, and from adjacent states, it is most important to determine what particular soybean variety is planted in a field prior to making a decision on a specific fungicide product for yield loss prevention.
Mississippi Rice Progress – May 31, 2013
In general, rice planting is nearly completed and most rice planted before early May is going to flood. According to USDA’s Crop Progress Report, growers in Mississippi had planted 72% of the expected acreage by Sunday, May 26. Other than
Planting Progress and Early Season Weed/Thrips Control
A good deal of progress was made this past week with respect to getting the 2013 cotton crop planted. Rainfall during the middle part of last week put planting activities on hold until Friday afternoon (of last week) or Saturday
Thrips Pressure Heavy Despite a Late Planted Crop
No doubt this is a very late planted crop by Mississippi standards, so I was a little surprised when numerous thrips calls started coming in about a week or so ago. Usually thrips issues are much worse on cotton that is growing off slow due to cold weather or any number of issues that may slow growth.
Labeled Fungicides for Corn Disease Management
Several people have asked about a list of fungicides and the specific diseases they may manage best. Included in this post is a table that has been put together by the Corn Disease Working Group of fungicides and how they respond in environments with specific diseases in efficacy trials from throughout the U.S.
2013 Soybean Planting Progress
According to the USDA National Agricultural Statistics Service in Mississippi, 46% of the soybean acreage was planted as of the week ending May 26, 2013. At this time, 32% of the crop is emerged. Several areas around the state received
Cotton Planting Progress
Limited progress was made with respect to cotton planting in Mississippi during this past week. As has been the case for the past several weeks, field conditions permitted progress to be made for a short period of time before the
How will rainfall impact seed treatments in soybeans, rice, cotton, and other crops?
With all of the rainfall that we have had around most of the state, there have been a lot of questions about the impact on seed treatments. In general, most of the seed treatments that are being used in all crops are water soluble. Typical levels of rainfall should not have a negative impact on the efficacy of seed treatments, but excessive rainfall may.
Early Season Corn Diseases and Non-disease Observations
Several common diseases have been observed in the MS corn crop over the past week. Common rust and northern corn leaf blight are typical diseases in corn and are likely the result this early in the season due to the cooler than normal temperatures and ample rainfall we’ve received over the past month. But, with the generally atypical environment we’ve experienced this season the likelihood of more non-typical foliar diseases occurring is potentially increased. Proper diagnosis prior to a management decision is therefore increasingly important.
Aphids in Rice
There have been some reports of aphids in Arkansas rice fields recently. I talked to Gus Lorenz (UofA Extension Entomologist) yesterday and he told me that they are seeing several species of aphids scattered throughout Arkansas. I have not heard of or seen any in Mississippi rice fields to date, but I wanted to make everyone aware of what is being seen in Arkansas.
Rice Preflood Nitrogen Management
Nitrogen is important for crop growth and production. Managing this valuable input for maximum plant availability is critical to ensure optimum economic returns while minimizing the potential for negative environmental effects. Urea is the standard N fertilizer product for rice
Nutsedge Plot Tours
Yellow nutsedge will be the featured topic of a plot tour hosted by Mississippi State University’s Delta Research and Extension Center (DREC) on Friday, May 31, 2013, from 8:30 a.m. to 11:30 a.m.
2013 Scout Schools Set
The 2013 Scout School dates have been set. The first will be June 4th from 9:00 a.m -12:00 p.m. at the Delta Research and Extension Center in the auditorium of the main building. The last one will be on the main campus of Mississippi State University in the Clay Lyle Entomology Building conference room.
Crop Progress & Condition Report 5/19/2013
According to the National Agricultural Statistics Service in Mississippi, there were 4.5 days suitable for fieldwork for the week ending Sunday, May 19, 2013. Favorable conditions allowed for more field work to be completed. Operators were able to plant more corn, soybeans, and cotton. Soil moisture was rated 1 percent very short, 1 percent short, 52 percent adequate, and 46 percent surplus.
Managing For Earliness
Progress was made with respect to planting on Tuesday, Wednesday, and Thursday of this week. Some areas remained wet and little progress was made whereas in others favorable conditions facilitated tremendous progress. However, what began on Monday of this week
Small Grains and Soybeans Market News
by Brian Williams Traders have been watching planting progress closely this week. Nearby July wheat futures closed down 4 cents Friday to close the week at $6.83/bu. Wheat harvest will likely be behind schedule this year with only 29% of
Kudzu Bug Finds in Mississippi Increasing
In 2012 Kudzu bugs were found in four counties in Mississippi on Kudzu. All finds were along major highways suggesting they “hitchhiked” in on vehicles. The counties were Warren, Lauderdale, Montgomery, and Carroll. In the last 2 weeks we have
Do Insecticide Seed Treatments Provide any Value on Late Planted Soybeans?
Due to the rain and cold weather this spring a much larger percent of the soybean crop will be planted later than normal. There have been several questions lately about whether or not we should still include an insecticide seed
Thrips in Cotton and Peanuts
I have been asked several times over the last week about the need for thrips control now that we have more optimal planting conditions. This is a good question and I will attempt to provide some valuable insight about thrips control in both cotton and peanuts.
Soybean Seedling Issues: Seedling Disease Versus Herbicide Injury
Within the past week to 10 days, numerous fields have been diagnosed as having “Pythium seedling disease”. In most cases, herbicide injury has resulted in fields appearing to have an uneven stand as a result of seedling disease. Rarely would a seedling disease be responsible for large acreages of dead seedlings. More than likely, a combination of events have occurred to cause the appearance of seedling disease. Preemergence herbicides, cool temperatures, excessive rainfall following planting immediately prior to emergence, light soil texture, and herbicide injury on stressed soybean seedlings have all compounded the stressful situation.
How to Estimate Nitrogen Loss resulting from Saturated Soils
Persistent rainfall has periodically saturated corn fields for several weeks this spring, prompting questions regarding potential nitrogen fertilizer loss. This article gives guidelines for estimating potential N loss.
Wheat Leaf Topics and Physiological Leaf Spotting
Oftentimes dealing with foliar wheat diseases can be a confusing topic. More often than not, physiological leaf spotting, or genetic leaf spot, can be observed in most wheat fields after flowering stages. However, the leaf spot symptoms are occasionally misdiagnosed as early leaf rust symptoms. But, rarely have I observed a disease epidemic in a situation where the specific “flecking” symptoms are regularly observed.
Cotton Replant Costs
Very little cotton has been planted so far this year given the seemingly weekly rainfall. What little cotton has been planted has struggled due to cool temperatures, water saturation, etc. In some cases, fields are not going to emerge to
Transform WG Insecticide from Dow Recieves Label for Cotton
Earlier this week Transform WG insecticide from Dow received a full Section 3 label for use in cotton.
