b'on them since they arent usually found in large populations in most parts of the Prairies, Meers says. When we have an occasional pest like this its really hard to study because you generally have no concept of where its going to pop up, he explains. Its been kind of a frustrating thing that we cant get better answers. Its hard enough to get good answers for the pests we already have a good read on.Another challenge of dealing with wheat head armyworms is the fact that there really arent any established management plans do deal with them. Still, there are some chemical controls that can be used to deal with wheat head armyworms populations. Meers says a number of newer insecticides with one or two-day pre-harvest intervals such as Coragen can be effective if applied with the proper amount of lead time prior to harvest.The challenge with using any kind of insecticides to fight wheat head armyworms is that no economic thresholds have been determined for when its appropriate to use them. Meers says hes generally reluctant to recommend spraying for them unless theres a major infestation since wheat head armyworms are parasitized and most insecticides will also eliminate those parasites and what they have to offer. Jim TimlickTyler Wist, a research scientist in field crop entomology for Agriculture andAgri-Food CanadaWheatOatsBarleyCanolaPeasFaba BeansTF (800) 444-8961 22252 TWP452 P (780) 352-3240 RR#1 New Norway, F (780) 352-6943 Alberta, T0B 3L0 [email protected]
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