The doctor of plant health

Also in this issue:

Sodium bicarbonate buffer in dairy cow rations

Changing patterns in California's harvest labor force

Desiccants for grapevines

Adaptability of tropical forages to California's Central Valley

3X milking: Its effects on production and profitability

Effect of vitamin B on vegetable transplants

Coping with the ‘leafminer crisis’

Beet armyworm pheromone trap

Aerial movements of mites in almonds: Implications for pest management

Efficacy of cotton defoliants

Why workers leave dairies

Improved sampling for spider mites on Imperial Valley cotton

Presence-absence sampling of citrus red mite on lemons

Quality of percolating waters: I. Properties of deep substrata materials in the west side of the San Joaquin Valley, California

Quality of percolating waters: II. A computer method for predicting salt concentrations in soils at variable moisture contents

Quality of percolating waters: III. The quality of waters percolating through stratified substrata, as predicted by computer analyses