Dr. Erika Peirce: Erika.Peirce@colostate.edu, 661-607-1789
Dr. Punya Nachappa: Punya.Nachappa@colostate.edu, 785-383-4873
Brown Wheat Mites
Hot and dry conditions have worsened earlier reported brown wheat mite infestations. Multiple reports of heavy brown wheat mite populations near Arriba (Lincoln County) and Lamar (Prowers County). The populations were above economic threshold levels. Low to moderate levels reported near Julesburg and near northeast of Prospect Valley.
The economic threshold for this pest is not well defined, but during an outbreak spraying with insecticide is the only option. Previous research has shown that dimethoate insecticides are the most effective of currently registered products.
