Over the last few years, UC Davis Weed Science has been testing cover crops for weed suppression in nut orchards. The most recent project we've been working on has trialed several cover crop programs using cereal rye in walnut orchards. These cover crop programs represent a range of several management philosophies, from a basic, low-input program to a high-intensity forage intercrop. So far, we are finding that a variety of winter cover crop programs can provide some level of winter weed suppression, but cover crops are not (and may never be) a complete vegetation management solution for the orchard floor.
Weed scientists have been thinking a lot more about cover crops recently. Because of renewed concerns about...
- Posted by: Gale Perez
Have you seen Lee Allen's article in the Western Farm Press (July 15, 2020) on weed control in tree nut orchards? Here's the link: