California Tree Crops: Suterra Announces New NOW Control Product Nov 4, 2019

🕔Nov 4, 2019Suterra today announced the launch of CheckMate Puffer NOW Ace, a new aerosol pheromone formulation for season-long Navel Orangeworm (NOW) control in almonds, pistachios, walnuts, figs and other crops where […]

California Walnuts: Yellow Howard Problem Returns Oct 9, 2019

🕔Oct 9, 2019The yellowing Howard problem is one specific instance of waterlogging induced root death. The yellow Howard problem was observed by Janine Hasey (UCCE Emeritus Sutter-Yuba and Colusa) during cool, wet springs […]

Tree Nuts: Almond, Walnut, and Hazelnut Production Forecast To Drop – USDA Oct 1, 2019

🕔Oct 1, 2019As the 2019/20 domestic season is already underway for most tree nuts, anticipated smaller almond, walnut, and hazelnut crops signal reduced U.S. tree nut supplies. In the previous season (2018/19), […]

California Walnuts: Yellowing, Collapsing Trees? Might Be Water Logging. Oct 1, 2019

🕔Oct 1, 2019A single yellowing walnut tree in an otherwise healthy orchard has been a frequent sighting when driving along the roadways of the Sacramento Valley this summer. These yellowing trees have […]

California Walnuts: Howard Nut Drop – What Happened? Jul 18, 2019

🕔Jul 18, 2019During about the second or third week in June, many Howard walnut trees experienced nut drop of perhaps as many as 100 nuts per tree, with many trees losing no […]

U.S. Trade War Reaches India Jun 20, 2019

🕔Jun 20, 2019In the last couple of weeks, we have seen several more maneuvers in President Trump’s ongoing trade war, including the addition of a new front—India. On June 15, India announced […]

California: Spotted Lantern Fly – Looking For An Ally Before It Hits Key Crops Jun 18, 2019

🕔Jun 18, 2019UC Riverside is testing whether a sesame seed-sized wasp can control a pest that could seriously damage California crops including wine, walnuts, and avocados. The pest, a sap-sucking spotted lantern […]

California: Walnut Blight: Dealing With Resistance — It’s Complicated Apr 12, 2019

🕔Apr 12, 2019Walnut Blight Disease Cycle Walnut blight is caused by the bacterial pathogen Xanthomonas arboricola pv. juglandis (Xaj). This devastating bacterium can overwinter in between scales of healthy buds, “waiting” to […]

California Walnuts: Genome Deciphering – Better Varieties Coming? Mar 26, 2019

🕔Mar 26, 2019California produces 99 percent of the walnuts grown in the United States. New research could provide a major boost to the state’s growing $1.6 billion walnut industry by making it […]

California Walnuts: Autumn Weed Control Options Nov 7, 2018

🕔Nov 7, 2018Implementing a herbicide strategy to control the weeds that have survived your summer control program, as well as the newly emerged winter weeds, is a task that exemplifies starting with […]

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