Relative grape damaging potential of three species of birds
AuthorMark E. Tobin
Author AffiliationsMark E. Tobin is Post Graduate Research Biologist, Division of Wildlife and Fisheries Biology, University of California, Davis.
Hilgardia 38(3):9-10. DOI:10.3733/ca.v038n03p9. March 1984.
Not available – first paragraph follows:
At least 20 and possibly as many as 40 species of birds damage ripening grapes in California, but the economic importance of individual species has not been clearly defined. Several studies in California vineyards have documented the various types of birds that damage grapes or have estimated the overall damage due to all species. However, estimates of the damage potential of each species should not be based strictly on its relative abundance in vineyards: the different body sizes, feeding habits, and social behaviors of the various species also influence the amount of grapes they damage. A better knowledge of the actual damage capability of individual bird species could help grape growers predict potential damage severity from observed bird numbers, thereby allowing more species-specific and cost-effective bird damage control programs to be implemented.
Also in this issue:Applied mathematics in agricultural research
The Santa Barbara gypsy moth eradication effort
Innovative approaches improve farm labor
Surveying sweetpotato whitefly in the Imperial Valley
Black vine weevil: An increasing problem for California nurseries
Evaluating the browning potential of peaches
Leaf-footed bug implicated in pistachio epicarp lesion
Eucalyptus fuelwood growth rate improves with age
Changing alliances in California water issues
A quick method of estimating chill hours
Previously imported parasite may control invading whitefly
Managing nematodes in sweet potatoes with resistance and nematicides
Cultural management of the navel orangeworm by winter sanitation
Biological control of spider mites on greenhouse roses
Developmental aspects of field-to-field variations in selected cantaloupe characteristics (Cucumis melo L. var. reticulatus Naud.)