There have been a number of calls from folks who were disappointed in dicamba + glyphosate control on horseweed (marestail). Most of the applications were applied right before this wet cold period which is probably at least part of the reason for the poor control. Continue reading
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
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
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
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
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
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