Weed of the Week: Downy Brome
Downy brome can be problematic in some areas in winter wheat, pastures, and also in alfalfa.
Downy brome can be problematic in some areas in winter wheat, pastures, and also in alfalfa.
Cheat is a tufted, erect, winter annual grass species that is native to Europe. Cheat prefers open areas with full sunlight, such as cultivated fields, roadsides, and pastures.
Italian ryegrass plants germinate from fall through early spring, are highly competitive, and grow rapidly in the winter and early spring months.
Texas millet is native to the southern United States and can be found in crop fields, pastures, roadsides, and untended areas in Mississippi.
Description and symptoms. Yesterday I looked at some defoliating fields in the greater Aberdeen vicinity. The vines looked like someone had used a set of hedge shears to remove the foliage from between the rows and thin it in the
Many diseases of soybean can produce a symptom of interveinal chlorosis. Stem canker, sudden death syndrome, Phytophthora root rot, southern blight, and several other less common diseases in the MS production system can all produce symptoms on the uppermost leaves that appear similar to SDS. However, disorders can also produce the same symptom and are oftentimes readily misdiagnosed at the field level.
Plant pathogens require a specific set of factors to occur at the same time for disease to begin. More often than not diseases require a prolonged conducive environment before the pathogen can produce observable symptoms.
Bollworm trap counts dropped slightly from the previous week in the Delta and Central MS regions while staying about the same in the Northeastern MS region. Tobacco budworm counts also dropped back some this week while beet armyworm counts were
Over the past six weeks soybean rust has been detected in numerous soybean fields throughout Mississippi. Even though it appears that a large number of counties have soybean plants infected with the disease, at present only low levels of soybean
Southwestern cupgrass has become an increasing problem in recent years in Mississippi.
Soybean harvest has begun in several places around the state. According to the USDA Agricultural Statistics Service in Mississippi, 34% of the soybean acreage is dropping leaves and 9% has been harvested. Yield reports at this point are optimistic in
As of Sunday evening, it appears that Tropical Storm Isaac will slow, turn into a hurricane, and hit our Gulf Coast sometime Tuesday. Rainfall amounts are forecast in inches below I-20 and tropical storm conditions are expected to prevail for
This article lists those wheat varieties which have demonstrated superior productivity in the MSU Wheat and Oat Variety Trials and summarizes their characteristics. This impartial information should help you better assess how many variety traits potentially work to affect wheat performance on your farm next season.
Cotton harvest aid applications are beginning to go out on some of the earliest planted and/or burnt up cotton in several areas throughout the state. As most know, there are several methods that can be used to time defoliation applications;
Broadleaf signalgrass is widely dispersed throughout the southeastern region of the United States.
Foliar disease in the soybean crop continue to be observed throughout MS. Presently, soybean rust has been detected in 11 counties, with Lowndes, Noxubee, and Winston being the most current finds (8/21/2012). In addtiion, frogeye leaf spot and Cercospora blight continue to be observed across a greater number of acres.
Mississippi producers planted 65K acres of grain sorghum this year, up from 52K acres in 2011, and 12K acres in 2010. Grain sorghum traditionally in MS has been considered a “step child†crop that went on the worst dry land
Tobacco budworm catches were up sharply this week, especially in the northern and central Delta region. Bollworm catches were slightly higher in all regions of the state. With higher tobacco budworm catches, the proportion of worms that are budworms in
At this point in the growing season, those with irrigation capabilities are looking at their crop to decide how much additional water it will take to finish things off. Scattered rains over the last few days have helped make this
In Mississippi, browntop millet is found in cultivated areas, lawns, pastures, and along roadsides.
When to terminate spider mite treatments can be a very difficult decision this time of year. Spider mites can cause yield loss directly by feeding on small squares and bolls causing them to abort, or indirectly by feeding on leaves which reduces photosynthesis not allowing bolls to fill out correctly. In many ways this indirect damage would be very similar to defoliation.
Foliar leaf spot diseases continue to be observed throughout the MS cotton production area. Determing the particular leaf spot at the field level can be quite difficult especially if the leaf spots are a result of a foliar potassium deficiency. Bacterial blight, Corynespora leaf spot, and various other fungal diseases are being observed at present within our production system.
As a Plant Pathologist, I tend to divide the peanut crop in Mississippi into growing areas based on the “climate†and soils. Both influence the type and amount of disease pressure experienced in that growing area and, incidentally, quality and
Open bolls are beginning to appear in several areas of the state which is signaling that we are headed toward the finish line with this crop. However, several calls have come in this week regarding fruiting gaps present in a
Bollworm pheromone trap counts were lower in all regions of MS this week and they weren’t very high before. Tobacco budworm and beet armyworm catches also remain at low levels. Unless something dramatic happens in the next few weeks, it looks like