How to Manage Pests
UC Pest Management Guidelines
Scientific name: Melanoplus spp.
(Reviewed 11/05, updated 1/10, pesticides updated 9/16)
In this Guideline:
DESCRIPTION OF THE PEST
Several species of grasshoppers may attack sugarbeets. Both adults and nymphs can cause damage. Injury is more likely near the foothill rangeland; however, grasshoppers can migrate great distances.
Grasshoppers consume foliage, and if infestations are severe, may defoliate entire fields.
A large contingent of natural enemies serveto hold grasshopper populations in check most years. However, in outbreak years and particularly after an invasion, other intervention will likely be needed. Because most grasshopper problems begin outside of the field, migrating invaders should be monitored closely. Apply treatment if and when a field is invaded.
UC IPM Pest Management Guidelines:
Insects and Mites
E.T. Natwick, UC Cooperative Extension Imperial County
Acknowledgement for contributions to Insects and Mites:C. G. Summers, Entomology, Kearney Agricultural Center, Parlier
D. R. Haviland, UC IPM Program and UC Cooperative Extension, Kern County
L. D. Godfrey, Entomology, UC Davis