Pest control by bacteria: Alfalfa caterpillar in field reduced to sub-economic levels within two days by bacillus applied as spray

Steinhaus, E

Pest control by bacteria: Alfalfa caterpillar in field reduced to sub-economic levels within two days by bacillus applied as spray

Author

Edward A. Steinhaus

Author Affiliations

Edward A. Steinhaus is Associate Professor of Insect Pathology, University of California College of Agriculture, Berkeley.

Publication Information

Hilgardia 5(6):5-5. DOI:10.3733/ca.v005n06p5. June 1951.

PDF of full article, Cite this article

Abstract

A spore-forming bacterium–Bacillus thuringiensis Berliner–successfully reduced populations of the alfalfa caterpillar to below the economic level in field tests near Dos Palos.

Also in this issue:

Sugar beet production, 1951: California acreage likely to be lower than last year as farmers find it more profitable to shift to other crops

Sugar beets and climate: Effects of night and day temperature and day length on beet growth and sugar production investigated

Control of orangeworms: Cryolite, DDD, parathion found most effective against four main species of orangeworms in southern California

Nitrogen needs of citrus: Losses caused by leaching and volatilization can be reduced by management and irrigation practices

District pipe systems: Concrete irrigation systems compared in study of efficiency of open, closed, and semi-closed types

Nitrogen on cantaloupes: Fertilization tends to increase fruit size and reduce culls but does not affect mosaic infection and yield

Dairy industry research: Brief progress report outlines current work aimed at improving the maior dairy products of California

Mastitis control: Proper management of herd most important in successful program

Deciduous character of pepper: Tiny fruited form is crossed with non-deciduous variety to get easy-to-pick pepper for commercial use

Use of fire in land clearing: Proper ignition techniques important requirements for successful management of controlled burns

Some carbohydrate and nitrogen constituents of alternate-bearing sugar prunes associated with fruit bud formation