Home Industry News Leafy Greens

Leafy Greens

FDA to Implement Sampling Effort for Lettuce Grown in Salinas

The U.S. Food and Drug Administration will be collecting and testing samples of lettuce grown in California’s Salinas Valley from local commercial coolers from May through November 2021. The agency will test the samples for Shiga toxin-producing Escherichia coli (STEC), including E. coli O157:H7, and Salmonella spp. as part of ongoing surveillance efforts following reoccurring outbreaks linked to this region, including most recently in the fall of …

Two New Races of Downy Mildew in Spinach

Two new races of the downy mildew pathogen (Peronospora effusa) on spinach have been denominated by the International Working Group on Peronospora in spinach (IWGP) on the basis of a worldwide evaluation of isolates from growers fields and trap nurseries. Isolate SP1924 found in Europe, is denominated as race Pe: 18. Isolate UA202001E, found in the USA, is denominated as …

Viral Lettuce Disease Threatens Western Growers

A recent report of viral disease on lettuce from our neighbor (Yuma, Arizona) caught our attention since this is highly relevant to our production system (please find information on the first link below). The name of the virus is “Impatient Necrotic Sport Virus” (INSV), which is a tospovirus, similar to the virus that attacks tomato to cause tomato spotted wilt …

Late-season Thrips Management in Lettuce

Effective control of western flower thrips (WFT) to prevent cosmetic scarring and contamination is important in spring lettuce crops, and now that INSV has been found infecting plants in Yuma lettuce, management becomes even more important.  For most of the growing season, WFT numbers have been below average based on sticky trap counts, field reports and population densities here at YAC. …

CA Utilized Vegetable Production Value Shows Slight Decline

California leads the nation in vegetable production, accounting for 39% of the U.S. vegetable acreage. The value of California’s 2020 utilized vegetable production dropped 0.9% to $7.68 billion compared to 2019’s value of $7.74 billion according to the USDA National Agricultural Statistics Service, Pacific Regional Field Office. Despite the decrease in state’s overall total value of utilized production, crops showing an increase …

FDA, CDFA, Western Center for Food Safety, and CA Ag Stakeholders Partner to Enhance Food Safety

“California leads the world in leafy greens production and innovation. Industry and food safety officials are proud to partner on this in-depth scientific study protecting public health.” — CDFA Secretary Karen Ross The U.S. Food and Drug Administration is announcing the launch of a multi-year study to improve food safety through enhanced understanding of the ecology of human pathogens in the …

UC Cooperative Extension Investigates the Reality of Steam-Weeding Lettuce Fields

Despite the tremendous need, there are currently no preemergence herbicides that are organic-compliant. Steam injected into the soil such that the soil temperatures reach >140°F for 15-20 minutes will kill weed seed in the soil. The effect of this reduction in the seedbank viability results weed control in the treated area that persists for several weeks or months, similar to …

Pythium & INSV Infections in Salinas Lettuce Fields

In 2020 the incidence of Pythium wilt (caused by Pythium uncinulatum) of lettuce has increased in severity and in the number of affected fields. Pythium infections in lettuce fields have been observed frequently, but not always, occurring with INSV infection. As a result, there has been confusion distinguishing between these two diseases and the role of each of them in causing …

Irrigation Strategies to Avoid Heat Damage to Cool Season Vegetables

Currently, we are experiencing a prolonged heatwave on the central coast.  Heatwaves have become a recurring phenomenon in recent years, especially in late summer. With thousands of acres of cool season vegetables in the ground, irrigation will be critical for keeping crops cool and for supplying enough moisture to meet their water needs. Crops can be kept cool by maximizing evapotranspiration (ET).  …

Western Growers Launches Leafy Green Food Safety Website

Answering the nation’s call for enhanced food safety measures, Western Growers (WG) has developed a website to facilitate changes to the Leafy Greens Marketing Agreement (LGMA)-approved Leafy Green Food Safety Guidelines: www.leafygreenguidance.com. The interactive website now easily allows the public to participate in routine discussions and process amendments that will ensure continuous improvement of the leafy green food safety preventive …

12Page 1 of 2

Recent Issue:

Follow Us on Facebook