All Issues

In the past year or two many new chemicals have entered the field of insecticides but the majority of them are not useful in the control of the peach twig borer.

There exists a general idea, that if maintaining moisture in an orchard readily available to the trees at all times is good, the addition of more water to keep the soil moisture relatively high is better.

During the past few years the greenhouse thrips, Heliothrips haemorrhoidalis, has become the most serious of the avocado pests, especially in the areas of greatest concentration of the avocado industry, in San Diego County.

Pilot scale field tests during the past vintage season proved it is possible to eliminate the odor nuisance and the mosquito menace from land disposal of winery liquid wastes, or stillage.

Precision planting of small seed row crops is now possible by the use of a metered planter which drops the seed at a pre-selected, uniform spacing in the furrow.

Biological warfare against certain insect pests by means of disease agents is a relatively unexplored method of insect control.

Two experimental plantings of Marsh grapefruit on several different rootstocks were made in 1928.

The need for better methods of determining the fertilizer requirements of sugar beets is emphasized whenever a fertilizer program is proposed for a field of beets.