Research previews

Also in this issue:

Human energy costs of picking oranges

Forage and protein production by subclover-grass and nitrogen-fertilized California grasslands

Pre-emergence herbicides for weed control in lettuce

New spider mite poses threat to California's solarnaceous crops

Horn fly and grub contzeol on beef cattle… testing several new insecticides

Early aphid control increases beet production

Effects of different rootstocks, and degree of psylla infestation on leaf curl in young pear trees

Simi, a processing tomato resistant to Verticillium and Fusarium wilts