The U.S. Environmental Protection Agency (EPA) is issuing a long-term approval for the insecticide sulfoxaflor— an effective tool to control challenging pests with fewer environmental impacts. After conducting an extensive risk analysis, including the review of one of the agency’s largest datasets on the effects of a pesticide on bees, EPA is approving the use of sulfoxaflor on alfalfa, corn, …

Botrytis fruit rot or gray mold, caused by Botrytis cinerea, is common fruit disease in California strawberries. Botrytis cinerea has a wide host range infecting several commercially important crops including blueberry, grapes and tomato.  Fungal infection can cause flower or fruit rot.  Fruit can be infected directly or through a latent infection in the flowers.  Moist and cool conditions favor fungal …

BELTSVILLE, MARYLAND, June 20, 2019—Agricultural Research Service (ARS) scientists have taken the first step towards a weapon against the major honey bee parasite Nosema ceranae. There is currently no treatment for this parasite. The scientists found that feeding honey bees a small amount of an interfering RNA compound (RNAi) could disrupt the reproduction of N. cerana by as much as 90 percent in …

The impact of an E. coli outbreak is far-reaching. It spreads through the entire supply chain, leaving consumers, farmers, and retailers in a bind. Losing 45% of your sales overnight is a massive loss to any industry. This is what happened in 2018 regarding the E. coli outbreaks in romaine. Struggling to boost consumer confidence to have another outbreak and lose another …

Almond Board of California — Weeds are a seemingly constant issue in the orchard. If not managed properly, they can create competition among young trees, clog micro-irrigation systems, use and generate uneven irrigation and contribute to a messy orchard floor during harvest. Good weed management, then, starts with identifying the weeds in your orchard, which requires constant, attentive monitoring. The University …

The Citrus Pest & Disease Prevention Committee (CPDPC) announces the addition of Kevin Ball as the new grower representative for the coastal district position. Kevin Ball will advise the committee on the latest citrus grower activities occurring in the coastal area. The CPDPC advises the Secretary and the agricultural industry about efforts to combat serious pests and diseases, like the …

Walnut production is most productive on deep-rooting uniform soils with good water-holding capacity. Such soils are also conducive to infestations of plant-parasitic nematodes. Currently, the key pest of concern in walnut plantings is root lesion nematode (Pratylenchus vulnus). In California, this nematode is wide-spread in walnut producing areas and is estimated to be present in almost 85% of walnut orchards. …