Numerous reports of urea injury producing symptoms similar to northern corn leaf blight have been made over the past several weeks. Determining the difference between the two issues on a corn leaf can be difficult. Numerous photos as well as a comparison table of the differences between the two issues are included in the post.
Northern corn leaf blight and common rust continue to be identified in corn fields throughout the south Delta. Determining the specific corn hybrids planted in each field is an important first step every season. For the most part, save for a couple of fields, NCLB has still been detected at extremely low levels (= 1 lesion per leaf per plant).
Monday’s crop progress had corn planting at 91% complete, just 4% behind the 5-year average. Soybeans are still behind schedule with planting progress currently at 57% for the U.S. crop and 74% for the Mississippi crop. That compares to 5
Bollworm and tobacco budworm trap counts were somewhat lower this week compared to last week. Bollworm counts are higher than last year, but lower than the 5-year average counts. Tobacco budworm counts are among the lowest recorded during the last
More and more growers are applying various management inputs around tassel stage in order to improve efficiency and corn productivity. This article discusses how crop physiology affects the potential yield response and appropriate timing.
Where Palmer amaranth has emerged, it is imperative to make a timely application of a postemergence herbicide.
Both bollworm and tobacco budworm trap catches were higher during the last week of May compared to the preceding week. Bollworm counts are also higher than during 2012, and more in line with earlier years.
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.
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
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
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.
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.
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
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
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.
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.
Here is the first weekly report of bollworm and tobacco budworm pheromone trap counts for 2013. While this is the first report posted, some traps have been monitored since late March. So far this year there has been nothing unusual
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.
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
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.
We continue our trend of just a couple of good days of field work before receiving a rain. In general, rainfall amounts ranged from 0.75″ to 2.5″ on Tuesday night, May 21. Planting progress increased to 48% according to the May
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.
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.
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
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
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