Grasshoppers of concern in some MB fields
By Top Crop Manager
August 1, 2014 - Grasshoppers continue to be a concern in some Manitoba fields, according to the province's latest insect and disease update.
According to John Gavloski, entomologist with Manitoba Agriculture, Food and Rural Development, they are currently seeing both nymphs and adults present. The population seems to be mainly a mixture of two-striped and migratory grasshoppers.
As a general guideline, about 8-14 adult grasshoppers per m2 is considered as a potentially threatening population in cereals. Gavloski says to consider how much feeding they may be doing to the crop before making control decisions.
Click here to read the entire insect and disease report.