Grasshopper: Thresholds and scouting tips

Grasshoppers are often worse in hot, dry conditions. One big reason is because insects, as cold-blooded creatures, eat more and grow faster in hot weather. The other reason is that hot, dry weather limits fungal infection, one of the main threats to grasshopper eggs. In dry weather, a larger proportion of eggs hatch.

Please read the Canola Watch Fundamentals article on grasshoppers for the latest on thresholds and scouting tips.