Angus Catchot, Jeff Gore, and Don Cook discuss the current situation with insect pests in cotton and soybean for the week of June 24, 2019. Click the image below to listen to the podcast.
Southwestern corn borer trap numbers are starting to increase in some areas of the state. Scouting should be intensified over the next couple of weeks. It is likely some fields will reach threshold numbers over the next 10 days to
Bollworm and tobacco budworm moth catches in pheromone traps were very high in Noxubee County, but low to average in all other regions. I have been finding an unusually large number of yellow-striped armyworms in my pheromone traps the last
The importance of soil moisture sensors is becoming more evident as we continue forward this growing season. This week we received a call regarding sensor readings that were assessed early this morning. The following are the data discussed in this
Surface sealing in the Mississippi Delta typically occurs in soils that have a low clay and organic matter content but have a high silt fraction, i.e., most of our silt loam soils. Surface sealing, from an irrigation management standpoint, is
This week’s pheromone trap catches of adult bollworm moths were similar to last week, which are similar to historic levels in NE Mississippi, but much lower than typical in the MS Delta region. Tobacco budworm catches remained low except for 2
This podcast discusses threecornered alfalfa hoppers, thrips, and aphids in cotton. Please click the icon below to listen to the podcast.
Plant pathogens require a specific set of factors to occur within a given period of time for disease to occur. Oftentimes the disease triangle is the main image behind plant pathology, when a susceptible host, plant pathogenic organism and the environment work together to cause a plant disease. Even though the environment is most often considered the main factor behind the occurrence of plant diseases, the host and the response of the host can also be factored into the occurrence of plant diseases. Defining the different responses of the host (e.g., susceptible versus resistant) is important to understand the level of disease that can occur on a given host.
The MSU OVT soybean locations were evaluated for disease during the 2018 season. Multiple diseases were evaluated at multiple locations and are provided in this post. Cercospora blight, Septoria brown spot, southern blight, and target spot were the most commonly encountered diseases during the season.
Most of the corn disease questions over the past week to 10 days have had to do with diseases in the lower canopy. Common rust has been one of the most commonly observed diseases and continues to be observed once plants reach reproductive growth stages.
Bollworm moth trap catches changed little from last week and were similar to or lower than long term average catches for the week. Tobacco budworm moth catches were slightly higher this week than last week, but were still lower than
I have had quite a few calls this year about threecornered alfalfa hoppers in cotton. There have been a few treatments on limited acres to date. In the past damage has usually been confined to field borders, but again this
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
Pheromone traps in the Delta caught about twice as many bollworm moths this week compared to last week while bollworm trap counts in the Northeastern counties declined. Both regions were still lower than last year and long-term average catches. Tobacco
The projected wind maps and storm track maps for Invest 91L have started to stabilize. See http://trackthetropics.com/invest91/ It is possible that this storm has picked up fungal spores from peanuts grown around the base of the Yucatan peninsula. If so,
As the Mississippi corn crop approaches tassel stage, weather has fluctuated from wet to dry conditions during recent weeks. Thus, this may affect your strategy regarding application of various management inputs, including nitrogen fertilizer or other products. This article will discuss factors that will improve your response.
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