The answer in most cases is very little to none. With most of Tennessee getting anywhere between 4 to 8” of rain over the last several days most herbicides are simply gone. Continue reading
27
Apr
2011
All posts by Larry Steckel, Extension Weed Specialist
25
Apr
2011
Glyphosate-Resistant Goosegrass in Tennessee
25
Apr
2011
Over the past several years, I have had numerous complaints of glyphosate not controlling goosegrass. With each of these past complaints, our field and greenhouse research showed that resistance was not the issue. Unfortunately, that has now changed. Continue reading
20
Apr
2011
Management of Pasture Grasses in Corn
20
Apr
2011
There have been a number of folks enquiring how to control fescue, bermuda grass, broomsedge, switchgrass and other warm season grasses in corn. Continue reading
20
Apr
2011
Early Palmer Amaranth Management in Cotton
20
Apr
2011
Palmer amaranth started emerging last week.
Remember it is imperative that as you start planting
cotton next week that any existing Palmer amaranth
must be removed.
15
Apr
2011
Late Season Burndown Options for Cotton
15
Apr
2011
Late Season Burndown Options for Cotton. The call of the last week has been what should my burndown strategy be with planting time upon us? Continue reading
05
Apr
2011
Giant Ragweed Management
05
Apr
2011
The emergence pattern of giant ragweed varies every spring. This spring giant ragweed started emerging in mid-March and continues to this day. The book says that giant ragweed mostly emerges in the early spring. A few years ago we collected giant ragweed seed from plants in a fence row here at the station. We also collected some giant ragweed seed from a soybean field in Lake County. We planted them in a field at the station in November. Continue reading
29
Mar
2011
Early Burndown Report
29
Mar
2011
In general, horseweed (marestail) populations are much lighter than usual. The only reason I can see for this is the very dry fall curtailed germination. This was not the case for henbit which is much more prevalent and more of a problem than usual. Continue reading
23
Mar
2011
Henbit Burndown
23
Mar
2011
There have been a number of calls from folks dismayed by the poor burndown of henbit. Indeed I have seen it in research as well. In general, burndowns of dicamba + glyphosate or Verdict + glyphosate have not been very effective on henbit. Continue reading