Abstract
Abstract Different B. thuringiensis products, including two experimental chemicals from Sandoz Crop Protection (SAN 420 and SAN 415), were evaluated for their ability to control PLR larvae of the overwintering generations. The test was conducted in an apple orchard at the Tree Fruit Research and Extension Center. The trees were 15-yr-old spur-type ‘Delicious’ on dwarfing roots. Treatments were applied to two-tree plots replicated five times in a randomized complete block. All treatments were applied on 11 and 18 Apr at pink and full bloom stages with a handgun sprayer at 300 psi to the point of drip, simulating a dilute spray of approximately 400 gpa. The post-treatment evaluation was made on 6 May. One tree from each plot was examined, and the total number of live leafrollers found between 4 and 8 ft high in the canopy was recorded.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
