Granulated insecticides superior to sprays for: Alfalfa weevil control
AuthorsV. E. Burton
C. S. Koehler
R. E. Fleming
Authors AffiliationsVernon E. Burton is Extension Entomologist, University of California, Davis; C. S. Koehler is Assistant Entomologist, U.C., Berkeley; Richard E. Fleming was Farm Advisor, Lassen County (now in Tulare County).
Hilgardia 17(1):14-14. DOI:10.3733/ca.v017n01p14. January 1963.
Field trials in Lassen County demonstrated that granulated heptachlor was more effective against the alfalfa weevil than comparable dosages of heptachlor used as a spray. Applications in the dormant season, or as growth begins in the spring, are believed to kill the adult weevils before eggs are laid.
Also in this issue:Characters, distribution, and food plants of phlepsid leafhopper vectors of California aster-yellows virus
The relation of pear psylla to pear decline … greenhouse tests
Orchard tests substantiate: Role of pear psylla in pear decline
Pear psylla: In abandoned orchards
Control of pear psylla: With oils and oil-pyrethrins
Phytotron modification: Admits more sunlight through plastic panels
Vetch green manure increases rice yields: …Proper depth and timing of incorporation allows maximum results
Field maturity—seed yield—shatter loss for: Potomac orchardgrass and hardinggrass
Evidence of nonspecific transmission of California aster-yellows virus by leafhoppers