Parasites for control of grape leaf folder
AuthorsR. L. Doutt
F. E. Skinner
Authors AffiliationsR. L. Doutt is Professor of Entomology, Division of Biological Control, Berkeley; John Nakata is Laboratory Technician IV, Division of Biological Control, Kearney Horticultural Field Station; F. E. Skinner is Laboratory Technician IV, Division of Biological Control, Berkeley. Photographs are by F. E. Skinner.
Hilgardia 23(4):4-4. DOI:10.3733/ca.v023n04p4. April 1969.
There is now ample evidence that integrated control has been proven a better approach than total reliance on pesticides, for solving a wide variety of pest problems. Integrated control emphasizes the fullest possible use of existing mortality and suppressive factors in the environment. It is not dependent upon any specific control procedure but rather coordinates, within the agricultural environment, the appropriate management techniques with natural regulating and limiting elements. Successful programs developed in many other parts of the world include integrated control for pests of citrus in Israel, for deciduous fruit pests in Central Europe and Nova Scotia, and for cotton pests in Peru. Other integrated control projects are now being developed for olives in Greece, for maize in parts of Latin America, for rice in India and Japan, and for cotton in Colombia. Crop protection specialists all over the world are moving rapidly toward the integrated control approach in efforts to help solve the critical food problems facing the world today. This issue of California Agriculture includes progress reports on several phases of the University of California Integrated Control Program for Grapes.—Ray F. Smith, Chairman, Department of Entomology and Parasitology, University of California, Berkeley.
The grape leaf folder, Desmia funeralis Hubner, is apparently an introduced pest without effective natural enemies in California. However, some 14 species of parasites and predators were found to attack the grape leaf folder in the eastern United States. Three of the most promising species have now been released in California vineyards for biological control of this pest. One of these, Macrocentrus, is shown on the cover. Photo above is of the parasitic wasp, Apanteles, depositing eggs in larvae of the grape leaf folder.
Also in this issue:Agriculture at Berkeley
Gill tract University of California, Berkeley
Microbial insecticides for control of grape leaf folder
Newer insecticides for the control of grape insect and spider mite pests
Population densities and economic injury levels of grape leafhopper
Effects of road dust on spider mites
Ecology and integrated control of spider mites in San Joaquin vineyards
Protecting young trees from attack by the pacific flatheaded borer
Effects of timing gibberellin sprays for berry sizing on maturity of table Thompson Seedless
RH 315 a new herbicide with potential for weed control in lettuce
Omnivorous leaf roller an important new grape pest in the San Joaquin valley
Seedling survival in a giant sequoia forest
Self-incompatibility in species of Lycopersicon Sect. Eriopersicon and hybrids with L. esculentum