Two maior pests on apples: Spider mite and woolly apple aphid infestation in late summer damaging to apples for processing
AuthorsHarold F. Madsen
Arthur D. Borden
Edward C. Koch
Authors AffiliationsHarold F. Madsen is Assistant Entomologist, University of California, Berkeley; Arthur D. Borden is Entomologist, University of California, Berkeley; Edward C. Koch is Associate Agriculturist, University of California, Berkeley.
Hilgardia 8(6):14-15. DOI:10.3733/ca.v008n06p14. June 1954.
Acaricieles–with long residual value– prevent late season buildup of European red mite and 2-spot mite populations on apples, but control of woolly apple aphid usually requires the inclusion of an aphi-cide in the mite treatment.
Also in this issue:Insurance based on temperature: Protection against citrus losses from frost damage involves solution of difficult actuarial problems
Penetration of packaging films: Film materials used for food packaging tested for resistance to some common stored-product insects
Study of systemic insecticides: Location and amounts of residue in plant tissues determined with aid of radio-phosphorus tracers
Biuret, toxic form of nitrogen: Soluble nitrogen compounds are not of equal value as fertilizers as shown by tests with citrus and avocado
Effect of temperature on swine : Influence of environment on feed utilization Studied for improvement in efficiency of farm structues
Fungi and shell bark of lemon: Complex disorder of bearing lemon trees studied to establish role of fungi and control of the disease
Crop rotation and citrus: Cropping old citrus soil to other plants studied to learn effect on the growth of citrus replants
Variable leaf punch: Improved foliage sampling tool aid in studies with unit leaf sections
New banana squash: Improvement sought in strain released to seedsmen in 1953
Density and arrangement of vines