Mites on citrus: Two chemicals show exceptional control possibilities in tests
AuthorsL. R. Jeppson
G. E. Carman
Authors AffiliationsL. R. Jeppson is Assistant Entomologist, University of California College of Agriculture, Riverside; G. E. Carman is Associate Entomologist, University of California College of Agriculture, Riverside.
Hilgardia 6(9):14-14. DOI:10.3733/ca.v006n09p14. September 1952.
Two of the newer chemicals show outstanding possibilities for the commercial grower's use to control mites injurious to citrus in California. The materials are specific acaricides—mite-killers—and therefore they are relatively nontoxic to beneficial insects, so treatments result in a minimal effect on insect parasites and predators as well as bees. Nor does their application effectively reduce populations of injurious insects.
Also in this issue:State's productive capacity: Shifts in land use and major crops projected for 1955 based on general cropping pattern of 1950–51
High quality citrus rootstock: Cleopatra Mandarin, Troyer Citrange rootstocks produce quick-decline tolerant trees bearing high-quality fruit
Variety trials: Sugar beets compared for growth, sugar content in controlled chambers
Synthetic soil conditioners: New synthetic organic materials under study for their effectiveness when added to certain California soils
Soil compaction by tractors: Irrigated soils may suffer from low water penetration limiting root development and reducing plant growth
Efficiency in fruit marketing: Packing labor efficiency and costs in California pear and apple packing plants influenced by varying factors
Small-seed legume harvesting: Clover and alfalfa seed threshing losses minimized by minor modifications and adjustments of present machines
Fryer marketing: Economies of continuous and batch systems compared in Hayward area
Dieldrin for thrips: Control of citrus thrips is possible but further studies are needed
The infectious nature of potato calico