The grape mealybug: A dormant season parathion spray reduced infestation to 1% at harvest
E. M. Stafford
R. A. Break
Authors AffiliationsFred Jensen is Farm Advisor, Tulare County, University of California; E. M. Stafford is Associate Professor of Entomology, University of California, Davis; R. A. Break was Farm Advisor, Fresno County, University of California, when the above reported studies were made.
Hilgardia 8(3):11-11. DOI:10.3733/ca.v008n03p11. March 1954.
Parathion sprays applied to field plots–in Tulare and Fresno counties– during the dormant season controlled grape mealybug in 1953 better than any other material tested, and confirmed results of trials in 1952.
Also in this issue:Ground-water overdraft: Antelope Valley with limited water resources subject to condition of overdraft on ground-water
Drainage and reclamation: Network of observation wells in Coachella Valley permits anticipation of possible drainage problems
New heat tolerant lima bean: Plant breeding program developed new variety of standard lima bean suitable for interior valleys
Russeting of bartlett pears: Experiments in 1953 indicate some factor other than copper in fire blight control is cause of russeting
Streptomycin for plant diseases: Tests indicate streptomycin or dehydrostreptomycin to be effective against plant pathogenic bacteria
Effects of pesticides in soils: Field experiments conducted in coordinated study of effects of insecticide absorption by the soil
2,4-D treated avocado plants: Plant growth regulator improved the vegetative growth in greenhouse tests with sand cultures
Cherry fruit sawfly: Ddt or lindane in pre-bloom spray controls pest on cherries, plums
Corn or barley for laying hens: Feeding trials with laying hens indicate barley used as grain in ration is as efficient as corn
Bacterial canker of stone-fruit trees in California