California insects: Survey provides accurate data for study of state's insect problems
AuthorPaul D. Hurd
Author AffiliationsPaul D. Hurd, Jr., is Junior Entomologist, University of California, Berkeley.
Hilgardia 8(5):3-3. DOI:10.3733/ca.v008n05p3. May 1954.
Insects of economic importance in California–whether native or introduced–have often been studied with almost complete disregard for their relationship to other insect species, largely because of the immediacy of a specific problem.
Also in this issue:Ground-water overdraft: Balance between recharge andraft on ground-water required to correct overdraft in Antelope Valley
Alfalfa and water table levels: Studies on effect of alfalfa on water table indicate need for close control of irrigation
Leafy seviiiano olive cuttings: Rooting readily obtained under mist humidification produced satisfactory trees in experiment at Davis
Rooting paradox walnut hybrids: Promising method for vegetative reproduction of walnut hybrids developed by trench layering
Aphid resistant to parathion: Strain of walnut aphid in Sun Jose area found to have developed definite resistance to parathion
Verticillium in chrysanthemum: Costly disease controlled by practice of culture-indexing and soil fumigation with chloropicrin
Field corn mechanization tests: Low moisture corn harvested with high efficiency in Antelope Valley tests with mechanical pickers
Fluoride lniury to citrus: Effect of air pollutant investigated to learn extent of contamination by component of smog
Lindane repellent to pheasants: Seed grain treated with high levels of Iindane apparently avoided in favor of untreated grain
Earth materials: Growth trials show no benefit to chicks on practical starting ration
Infectious bronchitis: Vaccines released for growing birds not yet tested for laying hens
Safflower meal digestion tests: Lambs used in digestion trials with decorticated seed meal to test product as feed for livestock
Principles governing the reclamation of alkali soils