Weekly Update (Aug 17, 2017; Wk 16) - Predicted Grasshopper Development

Grasshopper Simulation Model Output – Based on model output, grasshopper development is slightly ahead of long term averages with approximately 80% of the population in the adult stage.  The following map presents model data for oviposition. Given the warm conditions across the southern prairies, it is not surprising that oviposition rates are predicted to be greatest in southern Alberta and in south-central Saskatchewan.

Grasshopper scouting steps can be reviewed in the previous Week 13 Post.

Reminder:  Biological and monitoring information related to grasshoppers in field crops is posted by Manitoba Agriculture, Food and Rural Development, Saskatchewan Agriculture, Alberta Agriculture and Forestry, the BC Ministry of Agriculture and the Prairie Pest Monitoring Network.  Also refer to the grasshopper pages within the new "Field Crop and Forage Pests and their Natural Enemies in Western Canada: Identification and management field guide" as an English-enhanced or French-enhanced version.