Migration habits of: The Ladybird Beetle

Also in this issue:

The rural-urban fringe problem: Farm, suburban, and city interests have interdependence in decisions on expenditure of public money for public services

Hybrid cotton breeding program: Limited quantity of cotton hybrids produced for scientific use but seed production on commercial scale not yet possible

Stem borer found on safflower: Infestation discovered in planting at Davis may be first recorded attack on safflower by known pest of other plants

Lime-induced chlorosis studied: Physiology of disorder investigated to learn role of malonic acid and possibility of a block in organic acid metabolism

New disease resistant tomatoes: Improved strains of varieties Pearson and Red Top developed in plant breeding program at Davis and released to seedsmen

Blackline in walnuts: Delayed failure of unions killing many walnut trees in central coastal counties

Walnut aphid investigations: Evaluation of new and old aphicides object of experiments conducted in northern California test plots in 1958 season

Ponderosa pine planting stock: Studies indicate that time of lifting and length of storage before replanting influence survival of ponderosa seedlings

Ammonium bicarbonate toxicity: Root injury occurred from within few hours to several weeks in solution culture tests with citrus, avocado, and soybeans

Use of sorptive dusts on fleas: Control of fleas on cats and dogs achieved by treatment with dusts that are easily applied and nontoxic to pets or people

Effect of Bathyplectes curculionis on the alfalfa-weevil population in lowland middle California

The apparent climatic limitations of the alfalfa weevil in California