Feeding studies on the grape leafhopper
in areas where natural enemies of the grape leafhopper, Erythroneura elegantula Osb. are absent, or insufficient in numbers, chemical control may be necessary to prevent an increase in leafhoppers from causing serious economic damage. From an economic standpoint, determining the...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of California Agriculture and Natural Resources
1965-04-01
|
| Series: | California Agriculture |
| Online Access: | http://calag.ucanr.edu/archive/?article=ca.v019n04p6 |
| Summary: | in areas where natural enemies of the grape leafhopper, Erythroneura elegantula Osb. are absent, or insufficient
in numbers, chemical control may be necessary to prevent an increase in leafhoppers
from causing serious economic damage. From an economic standpoint, determining the
level of infestation allows not only prevention of serious damage to the vines, but
also could save the cost of insecticide applications. This study of daily and seasonal
periods when leafhopper damage occurred was conducted as a preliminary step in determining
the economic level of leafhopper infestation. |
|---|---|
| ISSN: | 0008-0845 2160-8091 |