HPIPM:Grasshoppers and Crickets

Author:Sue Blodgett, Frank B. Peairshttp://bspm.agsci.colostate.edu/people-button/faculty/frank-peairs/] revision (Michael J. Brewer, Frank B. Peairs & Jay D. Donahue original)

Grasshoppers are a complex of several species with various emergence dates. Both immatures and adults are foliage feeders. Grasshopper populations are strongly influenced by climate; long, warm fall weather and warm, dry springs favor grasshopper population increase.

The following website provides a comprehensive source of information on grasshopper biology, ecology, identification and management of grasshoppers and crickets in North America. [1]

Monitoring

Hazard Maps are developed each year as a cooperative effort of USDA-APHIS-PPQ and are available at the following site. http://www.sidney.ars.usda.gov/grasshopper/http://www.sidney.ars.usda.gov/grasshopper/

Management

Due to constantly changing labels, laws and regulations, the sponsors of this web site assume no liability for the suggested use of any chemicals noted in the management section. Contact your local pest management personnel for current information on labeled pesticides that can be used for the intended plant disease, insect pest or weed.