Yearly Archives: 2020

Weed Technology Survey

A team of weed scientists from UC Davis, Oregon State University, and Cornell are asking berry, tree fruit, tree nut, and vine crop growers to take 5 to 10 minutes and answer this short and anonymous survey (link below) about your current weed management practices and your interest in novel technologies, like vision-guided sprayers and cultivators, and electric, steam, and pressurized water weeders. This will help us plan research and extension projects that will address stakeholder concerns regarding the future of weed management. Continue reading

Almond Leaf Scorch

Beginning in late June, several PCAs and growers reported trees in almond orchards in the Sacramento Valley with symptoms like those of almond leaf scorch (ALS), a disease caused by the bacterium Xylella fastidiosa. UC farm advisors and UC and USDA plant pathologists have begun a survey to confirm disease presence and improve understanding of the disease in the Sacramento Valley. Continue reading

Orchard Sanitation is Key to a Quality Crop

Navel orangeworm (NOW) is the key pest of almonds, causing more income loss due to reject nuts than any other pest. Pesticide sprays, alone, cannot control this pest. A combination of several specific practices has been proven to reduce NOW damage and limit loss of grower income. The first of these practices on the orchard calendar is sanitation. Continue reading

Cytospora: A Prune Grower’s Archnemesis

Cytospora canker can severely limit prune production; reducing grower income and potentially lead to early orchard removal due to scaffold and/or tree loss. This bark disease is not new to prune orchards in California, but in recent years there has been a dramatic increase in this disease in some orchards. All prune growers and PCAs should know its symptoms and management strategies. Continue reading

Tree and Orchard Replanting Considerations in a Lean Price Year

When prices are lean walnut farming is tough business. Farm advisors are not economists or financial advisors. However, farm advisors can be useful in providing best practices for economically sustainable production. Two key economic decisions growers face are when to replant individual trees and when to remove and replant entire orchards. Continue reading