Thursday, June 10, 2021
Periodical cicadas causing injury in vineyards and orchards
Hello, everyone, Just a note on something many of you are aware of - periodical cicadas are now actively laying eggs in grapevines in northern Virginia vineyards. Mature vines have been attractive as well as young vines. Adults are normally active for about 6 weeks. The first report of adults emerging from soil was on April 28, but this was quickly followed by a period of cool temperatures, greatly slowing cicada development. Just a few words on effective materials. Pyrethroids like Danitol and Baythroid are among the most effective materials. Assail, Sevin and Surround also have activity - some materials that are somewhat less effective have the benefit of less risk of inducing secondary pest outbreaks - especially mealybugs and mites. If you opt to use pyrethroids pay close attention to secondary pests for the subsequent weeks. More later, Doug
Hello, everyone, Spotted lanternfly (SLF) is a potentially devastating pest of grape, now expanding its spread in Virginia. In July 2022,...
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