Lettuce

Integrated Pest Management (IPM) UC IPM website What is IPM? An ecosystem-based process for solving pest problems while minimizing risks to people and the environment. What is a pest? An unwanted organism that damages or interferes with desirable plants.

Program OverviewThe Plant Pathology Program provides applied research and outreach to support agricultural production across Imperial, Riverside, and San Diego counties. This tri-county region encompasses a wide diversity of crops and growing conditions—from the desert-irrigated systems of Imperial Valley to…

We compared thirteen varieties of red looseleaf lettuce to determine the best production and taste. All of the varieties were very healthy and pretty to look at. Flame and Cardinale were judged the best at the tasting, Sunset and Bronze Arrow were tied for second and Susan’s Red Bibb was third. The very…

Lettuce is usually grown as a cool-season crop in Santa Clara County. If grown in the summer, it's recommended to plant where it will get shade from other crops or trees and to select temperature tolerant, slow bolting, varieties. It's a shallow-rooted plant which requires frequent watering when there's no…

Lettuce is generally considered a cool weather plant, grown in early spring or fall, although it can be grown in the warm season in most of the SF Bay Area by choosing varieties adapted to warmer weather. Check seed catalogs for summer lettuces.