Aphid pests of field and orchard crops: Biological control

Also in this issue:

Fig characteristics useful in the identification of varieties

Use of cyclotron at Davis for tracer studies in agriculture

Control of red spider mites resistant to standard miticides

Root-knot nematode resistant: Alfalfa varieties

Skin pigments of: Red grape varieties

Decline and collapse of: Lemon trees

Studies of nutrition of the corn earworm for development of resistant plants

Studies on rooting of grape cuttings

Bacterial disease of the cabbage looper may aid natural control of pest

Rootstocks: For peaches, plums, prunes, apricots and almonds

Some growers participate in cooperative canneries other growers prefer to sell to private canneries

New method for handling citrus fruits from orchard to packing house uses simple equipment

Water stress and leaf drop: Healthy appearing leaves dropped by small orange trees after applied soil moisture ended induced periods of water stress

Biological control of insect pests aided by strip-farming alfalfa in experimental program

Vacuum cleaner principle applied in sampling insect populations in alfalfa fields by new machine method

Leaf analysis as a guide to nitrogen: Fertilization of the avocado

Potato quality lowered in field tests with: High nitrogen fertilization

Virus transmitted disease of cotton found in fields in desert valleys

Repeated applications of herbicides to live oak sprouts essential for complete kills