Friday, 6 May 2016

Weekly Update (May 5, 2016; Wk 01) - Predicted Grasshopper Development

Grasshopper Simulation Model Output – The grasshopper simulation model will be used to monitor grasshopper development across the prairies. Weekly temperature data collected across the prairies is incorporated into the simulation model which calculates estimates of grasshopper development stages based on biological parameters for Melanoplus sanguinipes (Migratory grasshopper).  

Warm, dry conditions typically enhance grasshopper egg development.  The predicted mean embryological development of the migratory grasshopper (Orthoptera: Melanoplus sanguinipes) was 62% this week.  The greatest development was predicted to be in Alberta (note areas shaded orange).

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.