Abstract
Abstract Four compounds were evaluated in dilute sprays vs. six-spotted mite in a block of single-row-bedded, 9-year-old grapefruit trees. The single-tree plots were replicated 2 times/treatment in randomized blocks. Applications were made on Apr 20 with a John Bean Royalier JK-20T hydraulic sprayer operated at 300 psi and equipped with a double Boyce handgun. Trees were sprayed to ‘run-off’. At the indicated pre- and post-treatment intervals, 10 infested leaves per tree were collected into pint Mason jars containing 50% alcohol and brought to the lab. Each jar was vigorously shaken and then leaves removed separately and surface, rinsed into the funnel of a Millipore filter system with a stream of 50% alcohol from a wash bottle. The leaf-wash and decanted jar liquid were then drawn through the filter. Mites on the filter disc were counted with the aid of a binocular dissecting scope.
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
