Chrysanthemum pests: New chemicals promising against two-spotted spider mite and aphids
AuthorsA. Earl Pritchard
R. H. Sciaroni
Authors AffiliationsA. Earl Pritchard is Assistant Professor of Entomology, University of California College of Agriculture, Berkeley; R. H. Sciaroni is Farm Advisor, San Mateo County, University of California College of Agriculture.
Hilgardia 5(4):10-12. DOI:10.3733/ca.v005n04p10. April 1951.
The two-spotted spider mite is a constant threat to chrysanthemums–especially under cloth-house conditions in San Mateo and Santa Clara counties where nearly two millon dollars worth are grown annually.
Also in this issue:Marketing California dates: Variable supply and quality, thin but widespread demand create problems to be overcome by orderly marketing
Apricot harvest predictable: Method of reliable forecast five to ten weeks before harvest an aid in merchandising fruit at right time
Walnut pest studies, 1950: Conventional and air carrier sprayers compared in codling moth and aphid control for northern California
Quick decline virus: Transmission tests indict the melon aphid as one vector of the disease
Current economic research: Agricultural economic studies cover farm management, conservation, marketing, commodity analyses
Use of fire in land clearing: Selection and preparation of the area to be cleared by planned application and confinement of fire important
Greenhouse roses: Control of powdery mildew and rust on certain varieties in bay area
Mites on cotton: Control of spider mites varies with species attacking the plants
Raisins for turkeys: Fed at will with no harmful effects on growth and quality
The carbohydrate metabolism of Stipa pulchra