Variable leaf punch: Improved foliage sampling tool aid in studies with unit leaf sections
AuthorsGordon L. Smith
Donald E. Little
Authors AffiliationsGordon L. Smith is Associate Entomologist, University of California, Berkeley; Donald E. Little is Laboratory Mechanic, University of California, and Agent, U.S.D.A. Shatter.
Hilgardia 8(6):13-13. DOI:10.3733/ca.v008n06p13. June 1954.
Developed for taking unit area samples of cotton leaves, an improved leaf punch has advantages for the entomologist, the plant pathologist, and for others working in plant sciences.
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
Two maior pests on apples: Spider mite and woolly apple aphid infestation in late summer damaging to apples for processing
New banana squash: Improvement sought in strain released to seedsmen in 1953
Density and arrangement of vines