Here’s the latest report from Wisconsin.

Contents

• Soybean Aphid Update for Late August 2008
  Soybean aphid populations have not yet “crashed”. As of the week of August 18th, soybean aphid populations have continued to flourish and increase beyond threshold in some areas of Wisconsin.
• Japanese hops, a new weed species to be aware of in Wisconsin
  Last week we received two unknown weed samples for identification, one from a homeowner, the other from a field in southwest Wisconsin. The homeowner version was common hops, a native species or non-native variety of this species used for hop production for beer (Humulus lupulus). The other species in the agricultural field was Japanese hops (Humulus japonicus) a new non native invasive plant spreading in Wisconsin.
• UW-Extension/Madison Plant Disease Diagnostic Clinic (PDDC) Update
  The PDDC receives samples of many plant samples from around the state. The following diseases/disorders have been identified at the PDDC since August 13, 2008.
• Planting Bin Run Wheat Seed is Not a Good Idea in 2008
  To maximize wheat yields in 2009 it is imperative that growers plant certified or private (professionally prepared) seed that is true to variety, clean, and has a high germination percentage (>85%).