Blueberry, Early Season Control of Cranberry Fruitworm and Cherry Fruitworm, 1996

Insecticides were applied to mature blueberry bushes at the Trevor Nichols Research Complex in Douglas, MI at a rate of 50 GPA with a FMC 1029 airblast sprayer. Treatment plots were arranged in a CRB design of two 44 ft long rows containing a total of 22 bushes, replicated 4 times. Funginex was applied separately to all treatments. Applications of materials were made on 10 Jun (1st egg laying, Bloom), 19 Jun (Petal Fall), 25 Jun (PF + 7 days), and 2 Jul (1C). Harvest fruit evaluations were made on 12 Jul by randomly picking 25 blueberry fruit clusters per replicate, or 100 clusters per treatment, and evaluating the fruit for CBFW and CFW injury.