Calag Archive

A program is underway at U.C., Davis to replenish populations of sturgeon in California, the only state in the union where commercial fishery has been prohibited since 1918 and where spawning grounds have been undisturbed.

Tests in El Dorado County show that allocations of water for irrigation should be based on site-specific variables rather than on a uniform distribution. Irrigating “on demand” resulted in topnotch fruit tree performance.

Controlled feeding depressed egg production of Leghorns and apparently lowered their resistance to other stresses, such as disease.

Metaseiulus occidentalis was found, by sampling, to be an important predator of spider mites in southern California almond orchards, but not in the north, where European red mites and brown mites were likely to predominate. One conclusion: different combinations of spider mites and predators call for different sampling and pest management schemes.

In an experiment pollen transmission of sunblotch virus in avocado has been demonstrated in a caged field tree, utilizing honey bee pollination.

Application of Embark, a new chemical to regulate growth of turf, may be useful in difficult-to-mow locations, and in combination with chlorflurenol it may be a cheaper way to inhibit growth.

The systemic fungicide Bayleton applied on 5-month-old diseased sugar beet plants gave excellent, protracted control of powdery mildew. Yields of treated plants were 17 percent higher than for nontreated.

Some kinds of film wrapping of lettuce interfere with effective vacuum cooling and can result in detrimental transit temperatures. Inadequate cooling can also lead to widespread decay.