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Adding 2,4-D to oil sprays has reduced fruit-drop, mature leaf-drop, fruit-stem die-back and black-button formation during citrus fruit storage.

Proper fertilization is more essential for celery than for any other vegetable crop grown in California, and no other vegetable crop gives as large returns on the investment in fertilizer.

The first good fruit-set of most varieties of avocado that is carried forward toward maturity—actual maturity of the crop is not necessary—starts the tree in its alternate bearing habit.

The following report is a condensation of a paper presented before the 17th Annual Winter Meeting of the Western Society of Naturalists.

Fruit-stem die-back, a malady occuring throughout California citrus orchards, is more severe in some localities than in others and affects oranges and grapefruit particularly.

One of two contrasting methods might be used to control weeds in rank growing crops such as cotton, sugar cane, milo and corn: 1. A temporary sterilization of the soil to prevent the growth of weed seedlings and protect the crop; 2. A series of contact sprays beginning with a premergence treatment and following through with one or more post-emergence sprays until the crop is ready to lay by.

The following article is a condensation of a portion of Circular 142 “Control of Rats and Mice” published by the California Agriculture Extension Service. The complete, illustrated circular may be obtained without cost from the local Farm Advisor or by addressing Publications Ofice, College of Agriculture, University of California, Berkeley 4, California.

Onion seed yields were increased by irrigation in a two-year series of tests at Davis.

A defect or break in the bark is often the first outward symptom of wood pocket in a certain strain of semidense Lisbon lemon. A discoloration of the wood immediately inward from the break is found at the cambium.

Sulfa drugs may not save chickens severely infected with cecal coccidiosis, but—properly administered—they will prevent losses in the rest of the flock.

Aphid control on potatoes by the use of some of the newer organic chemical compounds as aphicides was studied in the spring of 1948 in two series of small replicated plots in Kern County.

Before World War II there was an inclination on the part of all producers of swine in California—pnrebred breeders, the commercial hogmen and the garbage feeders—to settle on a uniform type.