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UC Riverside Discovers First Effective Treatment for Citrus-Destroying Disease

UC Riverside scientists have found the first substance capable of controlling Citrus Greening Disease, which has devastated citrus farms in Florida and also threatens California. The new treatment effectively kills the bacterium causing the disease with a naturally occurring molecule found in wild citrus relatives. This molecule, an antimicrobial peptide, offers numerous advantages over the antibiotics currently used to treat the …

Dr. Beth Grafton-Cardwell to Retire – Her View on 30 Years of Citrus IPM

Through the years I have had many collaborators and numerous technical staff studying a wide variety of pests including California red scale, citricola scale, cottony cushion scale citrus cutworm, katydids, earwigs, Fuller rose beetle, citrus peelminer, citrus leafminer, citrus thrips, citrus red mite, snails, ants, aphids and Asian citrus psyllid as well as their natural enemies. In the early years, …

Navel Orangeworm Host Preferences & Need for Collaborative Control

Some may think Navel Orangeworm is just a pest of almonds and pistachios, but there are other crops it thrives off of as well. Watch this brief interview with Bob Klein from the California Pistachio Research Board as he shares his insights on preferred overwintering hosts for this pest as well as in-season comparisons.  It’s going to take a unified …

USDA California Crop Weather Report

USDA Crop/Weather Report

WEATHER Temperature highs ranged from the mid 40s to low 70s in the mountains, low 60s to low 80s along the coast, low 60s to mid 80s in the valley, and low 60s to high eighties in the desert.  Temperature lows ranged from the mid 10s to high 40s in the mountains, mid 30s to mid 50s along the coast, …

Updated Regs on Bulk Citrus Movement into HLB Quarantine Area

Effective April 13, 2020, the California Department of Food and Agriculture (CDFA) will revoke Quarantine Commodity (QC) permit number 1486. QC 1486 originally authorized the intrastate movement of bulk citrus fruit from the Asian citrus psyllid (ACP) Bulk Citrus Regional Quarantine Zones 2, 3, 4, 5 or 7, into the Huanglongbing (HLB) quarantine area, without meeting the ACP-free performance standard. …

Are Tree Nut Growers Doing Their Part to Manage Navel Orangeworm?

Winter sanitation, mating disruption and proper pesticide application — all critical strategies in managing the number one pest of tree nuts: Navel Orangeworm. No one wants this pest on their farms, but are growers really doing their due diligence in managing this pest with tools that are now widely available to the industry?  Watch this interview with Bob Klein from …

USDA-APHIS Impact Report: Protecting 900 Million Acres of Farmland

The USDA seal includes the inscription “Agriculture is the foundation of manufacturing and commerce.” It’s fair to say that it is also the foundation of a stable and caring society because agriculture feeds and clothes the people. For nearly 50 years, it’s been the job of APHIS to protect American agriculture’s ability to feed and clothe the world by keeping …

A Brand New Sun-Maid: Investing in the Future

The dried fruit sector hasn’t been as popular with millennial consumers as in other generations, but Sun-Maid Growers are working to turn things around (at least for California raisins) with some new strategies and investments as shared at their annual meeting in Fresno recently.  Watch this brief interview with Sun-Maid CEO Harry Overly and read more about it in American …

Tulare County Crop Report (For the week ending December 28, 2019)

Tulare County Crop Status

SMALL GRAINS AND OTHER FIELD CROPS: Winter grain crop planting is finished. Winter grain plants are beginning to emerge from the soil. Some wheat, oats, and barley fields are being treated for weed control, as the winter wheat germination will increase due to high moisture.   DECIDUOUS TREE FRUITS, NUTS, AND GRAPES: Almond and pistachio harvest have ended. Dead and …

Detection of Citrus Disease Huanglongbing Triggers Quarantine Expansion in Portions of San Bernardino and Los Angeles Counties

A quarantine has been declared following the detection of the citrus disease Huanglongbing (HLB), or citrus greening, in a single citrus tree in an unincorporated area of San Bernardino County, near Montclair. This is the first time the plant disease has been detected in San Bernardino County. CDFA is working with the United States Department of Agriculture (USDA) and the …

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