DDT residues on sweet corn: Kernels and cob of corn treated with DDT remain practically free of residues but amounts on plant restrict use as fodder
AuthorsOscar G. Bacon
Wallace R. Erwin
Authors AffiliationsOscar G. Bacon is Assistant Professor of Entomology, University of California, Davis; Wallace R. Erwin is Principal Laboratory Technician, University of California, Berkeley.
Hilgardia 10(2):11-12. DOI:10.3733/ca.v010n02p11. February 1956.
Technical DDT at the rate of 4.5 to 12 pounds an acre—depending upon the method and number of applications—is applied to most of California's commercial sweet corn acreage to control the corn earworm.
Also in this issue:California egg buying systems: Factors affecting wholesale prices of eggs in principal markets influenced by dominant buying system of local area
Range grazing capacity raised: Program of seeding annual clovers, fertilization and grazing management resulted in improved forage quality and quantity
Rapid spread of alfalfa pest: Spotted alfalfa aphid infests about of state's alfalfa acreage within two years after its discovery in California
Removal of tinder in ponderosa: Prescribed burning of forest brush during the wet season by tested methods effectively reduces hazard of wildfire
Red mite on pears: New acaricides included in early spray tests for control of European red mite
Russet on bartletts: Pears from trees treated with copper or streptomycin equally free from russet
Codling moth on walnuts in '55: Downward trend in infestations of 1955 in northern California not uniform and need of control treatments in 1956 indicated
Zinc-deficient crops: Sweet corn, tomatoes, beans, and sugar beets used in tests for zinc deficiency
Nitrogen trichloride and other gases as fungicides