July 23, 2009 Agronomy

Wisconsin Crop Manager

Here is this week’s update.

  • Considerations for Spraying Foliar Fungicides in Soybean
    As the soybean crop moves into the R3, or early pod development, growth stage, we have received numerous calls regarding the use of foliar fungicides and insecticide tank-mix partners (a.k.a. plant health programs).
  • Considerations for Spraying Insecticides for Soybean Aphid in Soybean
    Today’s article addresses the topic of tank mixing insecticide for soybean aphid with fungicides at R3 soybean growth stage, or a bit earlier this season the same conversation was circulating regarding insecticide with 2nd pass Roundup (glyphosate) herbicide application in soybeans.
  • Western Bean Cutworm Moths Flying, Scout Field and Sweet Corn
    WBC is a late season corn ear pest. WBC has one generation per year, with six or seven larval stages, and overwinters as a full-grown larva, inside a soil chamber. Spring development begins when temperatures exceed 50°F. Larvae pupate in May and moths begin to emerge from soil chambers in early July. Multiple WBC larvae can infest one ear and cause yield loss and impact quality of grain (damaged, decaying kernels, secondary pathogen infection).