Many weed species commonly found in California can be found on the UC IPM website. The site is designed for easy identification.
The identification process is separated by type of weed – broadleaf, grass, sedge, and aquatic. Each of these sections includes: tutorials, high quality photos at multiple life stages, common and scientific names, and recommend management practices.
Resources for home gardeners and agricultural producers are available.
We also have our own website with all the local weeds that was compiled by Susan Latham, UCCE Master Gardener.
Strawberry production growers face many challenges. One such challenge is strawberry anthracnose, which is caused by Colletotrichum acutatum. This plant pathogen is often undetectable on transplants purchased from nurseries for the planting season, but can become very destructive after transplanted into the field.
UCCE’s Oleg Daugovish and collaborators researched this disease and how to best reduce risk and loss. The researchers studied irrigation systems effects on fruit yields, canopy size, and crown tissue infection to determine best management practices.
Their research has recently been published in the American Society for Horticultural Science Journal. You may view the abstract at this site. The full text may also be viewed by following a link on the abstract page. The full article may also be viewed in the UC Cooperative Extension, Ventura County office.
Soils perform vital functions, and are the basis of the ecosystem. Healthy and productive soil is vital for our survival. It is an amazing resource and fascinating to learn about.
- Soil facts – definitions, career information, soil basics, glossary, and regulations for moving soils
- Painting with soil – Jan Lang’s images of the Lewis and Clark Expedition
- 10 key messages to understanding soils
- Find out about your state’s soil
- Links for students and teachers – available for grades K-6, 7-12, and college level
- Videos and webinars
- Dig It! The Secrets of Soil
- NRCS photo gallery – natural resource and conservation related photos from across the United States
- And more
Written by a team of authors, including UCCE Ventura County’s Oleg Daugovish the recently published Organic Strawberry Production Manual is full of fantastic information.
In 2009 organic strawberry sales in California totaled $55 million, up substantially from $2 million in 1997. Organic production is projected to continue to increase, and this detailed how-to guide will help those working with the organic production of strawberries.
This publication is designed for commercial growers, pest control advisors, consultants, marketers, industry professionals and other interested in the organic growing and certification process.
- Selecting plant varieties
- Managing crops
- Identifying and managing pests and diseases
- Making the switch from conventional to organic growing
- Pursuing organic certification
- And much more
To learn more, please visit this page of the UC ANR Catalog. To receive 10% off your online order, please use promo code, PRVEN56. In addition to your discount, a portion of the sale will help support local programs.
California farms produce 93% of the celery grown in the United States. The crop thrives in coastal California’s moderate climate. Celery is an important crop in Ventura County with 40% of the state’s acreage farmed here. Valued at over $182 million, it was the second most profitable crop for Ventura County agricultural producers in 2010, which are the most recent statistics available.
Most celery in the field is planted as transplants. Transplants are typically grown under high humidity and high plant density conditions and are subject to seedborne pathogens. The most significant being Septoria apiicola (the causal agent of Septoria late blight) and Pseudomonas syringae pv. apii (the causal agent of bacterial blight). These diseases can be carried from the transplants into the field. As the plants mature, these diseases can cause plants to become unmarketable at a great loss to the growers.
UCCE’s Oleg Daugovish and collaborators researched these pathogens and how to best reduce disease and loss in the field. Over four years, the researchers documented that: seed, seedlings, weeds located in or near fields that harbor the virus can cause the disease in celery. This disease is likely transmitted by aphids, vectoring the virus.
The studies provided practices growers can use to manage this disease. Findings indicated that growers can control the pathogens by managing poison hemlock weed populations, controlling aphids, and planting celery cultivars that are not susceptible to the pathogens.
The interpretive and technical summaries of the research report can be viewed on this page of the USDA’s Agricultural Research Service. The full text can be accessed through the American Phytopathological Society, or at the UCCE office in Ventura County.