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Pest/Disease Management

USDA Provides Over $70 Million to Protect Ag from Pests and Diseases

The U.S. Department of Agriculture (USDA) is allocating more than $70 million to support 383 projects under the Plant Protection Act’s Section 7721 program to strengthen the nation’s infrastructure for pest detection and surveillance, identification, threat mitigation, to safeguard the nursery production system and to respond to plant pest emergencies.  Universities, states, federal agencies, nongovernmental organizations, nonprofits, and Tribal organizations will …

Potential for Late-Season Spraying of Organic Herbicides to Control Yellow Starthistle

Yellow starthistle is a noxious weed common in many areas of California’s grasslands, and is often a priority for control, due to its effects on decreased livestock carrying capacity, decreased plant diversity, and interference with recreational uses (reviewed in DiTomaso et al. 2006). A number of conventional herbicides are highly effective in controlling yellow starthistle (DiTomaso et al. 2006, USFS …

Stay Vigilant with Asian Citrus Psyllid Finds on the Rise

In the past few months, we have seen sporadic Asian citrus psyllid (ACP) detections popping up across California. While the citrus industry’s efforts have thus far kept Huanglongbing (HLB) out of commercial groves, these recent ACP detections are a reminder that we cannot let our guard down. The most effective way to prevent the spread of HLB is to keep …

Almond Ganoderma Butt Rot Spore Survey

Ganoderma butt rot has been an increasing problem in the almond industry. The disease has been responsible for trees falling over all throughout the Central Valley. Ganoderma butt rot is caused by wood decay fungi that can spread via spores in the air. In order to better focus our management efforts, researchers must conduct a spore survey that will help us determine the …

Synergy between Biotech and Classical Control Tactics Rid U.S. of Invasive Pest

Genetically engineered cotton and classical pest control tactics combined to rid the United States and Northern Mexico of a devastating pest, according to a new study by Agricultural Research Service (ARS) and University of Arizona (UofA) scientists published in the Proceedings of the National Academy of Sciences. For most of the past century, the pink bollworm was the major cotton pest …

COVID-19 Impact on the Almond Industry & Future Prospects

Many have heard initial projections as to how COVID-19 might impact the California almond industry, especially at such a critical time with growers expecting their largest crop ever this year. But how has the market actually been impacted up to this point?  And are evolving consumer habits beneficial to this growing industry?  Watch this brief interview with Emily Fleischmann from the Almond …

Navel Orangeworm Winter Sanitation Considerations

Winter sanitation is a critical step in your Navel Orangeworm IPM programs. But when should you start and is it enough just to shake those mummy nuts off of the trees? Watch this interview with Bob Klein from the California Pistachio Research Board as he shares some key insights growers should consider when approaching winter sanitation and read about it …

The Essential Pieces of Protecting Ag Workers, Preventing COVID-19 Spread

Christopher Valadez — As president of the Grower Shipper Association of Central California (GSA), I talk to farmers, farming companies, farm labor contractors and farm workers about the challenges faced when protecting essential employees from COVID-19 exposure. These conversations and hearing the needs firsthand formed the impetus for many of the programs established by GSA over the last few months to …

Broccoli Rotations Lower Pathogen Populations and Reduce Disease Incidence of Verticillium Wilt

In 1999, several UC researchers published foundational research in a paper titled, “Evaluation of broccoli residue incorporation into field soil for Verticillium wilt control in cauliflower.” Since this publication more than 20 years ago, many studies have further investigated this concept and many coastal growers, especially organic producers, have adopted broccoli rotations as a strategy for Verticillium wilt control. Today, …

Transform (sulfoxaflor) Full Label Could be a Major Benefit for Alfalfa IPM

The California Department of Pesticide Regulation is currently reviewing the use of Transform (sulfoxaflor) for insect pest management in alfalfa hay production. A decision on whether to register Transform with a label for use in California alfalfa is expected to occur by the end of 2020. The registration of Transform has been so far deferred due to concerns of potential …

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