![]() ![]() The pale western and redbacked cutworm continue to be the most common species affecting canola crops, but reports suggest other species are also contributing to this increased frequency of outbreaks. However, outbreaks of cutworms seem to be occurring with greater frequency, and from 2007 through to 2010, were a serious insect pest in canola. Cutworms are usually present in cropland, but at levels well below economic thresholds. Some species are more dominant in certain geographic areas than others, with the potential for more than one species to be present in an infestation. More than 20 cutworm species may damage Prairie crops, with five economically significant cutworm species described below. Spot spraying the affected patches and a pass or two in the surrounding crop can often be effective in limiting outbreaks.Ĭutworm curled up next to a canola plant (potentially after feeding on it)Ĭutworms can be a significant pest in canola. High populations are often localized, leading to expanding bare patches in fields as they consume all the canola plants in an area and move outward in search of more food. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |