California Agriculture, November-December 1987
Volume 41, Number 11
peer-reviewed research articles
Income tax reform and California farmers: Who wins and who loses?
by Hoy F. Carman , Robert Innes
By placing restrictions on tax incentives, the new law may discourage tax shelter investments in agriculture. Investment decisions will be based more on economics and less on possible tax losses.
Hardseeded Spanish subclover finds a place in southern California
by Walter L. Graves , Burgess L. Kay , William H. Weitkamp , Melvin R. George
The impressive showing of Spanish sub clovers may lead to wider use here for range and pasture in areas with low and variable rainfall.
The potential of gypsy moth as a pest of fruit and nut crops
by Jeffrey C. Miller , Paul E. Hanson , Robert V. Dowell
Abstract Not Available – First paragraph follows: The gypsy moth is a well-known pest of deciduous forests and landscape trees in northeastern United States. Most of the studies and available information on the feeding habits of larvae are therefore based on the flora of that region. However, as the gypsy moth, Lymantria dispar (L.), is introduced into new areas such as California, different plants become available as potential hosts (California Agriculture, March 1977, July 1982, and March-April 1984).
Chemical control of powdery mildew on Kentucky bluegrass
by Howard D. Ohr , Margaret K. Murphy , Emmylou M. Krausman , John Van Dam , Robert M. Endo
Several products effectively control this relatively minor disorder.
Biologically derived insecticides for use against beet armyworm
by William J. Moar , John T. Trumble
New microbial insecticides are good prospects for use in tomato and celery IPM programs.
The importance of soil fumigation for nematode control
by John D. Radewald , Michael V. McKenry , Philip A. Roberts , Becky B. Westerdahl
Preplant fumigation is the only acceptable way to control nematodes in some crops. 1,3–D is one of the few products available to do the job.
California farm employment and wages in 1984
by Philip L. Martin , John Mainer , Bert Mason , Charlsey Cartwright
Labor is the greatest cost input for California growers, but reliable information on the subject is scarce.
Split nitrogen applications best for cauliflower
by Norman C. Welch , Kent B. Tyler , David Ririe
Abstract Not Available – First paragraph follows: Cauliflower is a cool-season crop that is exacting in its climatic and cultural requirements. For highest quality curd (edible portion), this crop needs an average monthly temperature of 60 to 70F. Extreme heat, poor cultural practices, or both can interrupt growth and result in poor quality curd, rendering the product worthless to the processor and fresh vegetable market.
Pitch canker threatens California pines
by Arthur H. McCain , Carlton S. Koehler , Steven A. Tjosvold
Although it primarily affects Monterey pines, pitch canker is also a potential threat to other pines in the urban landscape as well as to commercial pine forests and recreation areas.
Mixing broccoli cuItivars reduces cabbage aphid numbers
by Miguel A. Altieri , Linda L. Schmidt
The reason isn't clear, but physical differences between cultivars may play a part.
New pecans for California
by G. Steven Sibbett , Tommy E. Thompson , Nick Troiani
Abstract Not Available – First paragraph follows: Pecan is develouine as a crou of economic importance in California. A major portion of the state's approximately 2,550 acres of pecans is planted in the southern San Joaquin Valley (Fresno, Tulare, and Kern counties), where the summer is hot and dry and the fall normally rainless, facilitating late harvest of the crop. Smaller acreages occur in adjoining counties, and additional acreage is being planted in northern California. Several pecan shelling and processing facilities now exist in California, and the industry includes an Association of Pecan Growers.
editorial, news, letters & science briefs
by Kenneth R. Farrell