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IPM Message for Cranberry Growers: Aug 1, 2011

August 1, 2011

We still recommend scouting for viable unhatched cranberry fruitworm eggs to determine if extra sprays are needed.  We understand that this is a time-consuming process but it is the best IPM tool we have for cranberry fruitworm management at this point in the season.  If you still have a Delegate spray available and a Spag issue, now is the time to apply for control.  The Ent lab reports high counts of flea beetle in some locations.  Again, the best choices are Diazinon and Sevin (but many growers may not have this option), then Belay (good only with low-rinse time systems), and then Delegate (still may only slow them down some).

You cannot spray QuinStar any more this season.  The Section 18 expired on July 31st.  PHIs for compounds (some of the longer ones):  Poast and Lorsban 60 days, Stinger, Ferbam, and Bravo 50 days, Callisto and Ridomil 45 days, and Mancozeb products 30 days.