IN-CANOPY CHEMIGATION WITH MULTIFUNCTION LEPA IRRIGATION SYSTEMS
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Numerous insecticides were applied to corn and grain sorghum by dynamic in-canopy chemigation nozzles located on a continously moving irrigation system. These treatments were compared to traditional overhead chemigation application by determining chemical efficacy for insect control from each application method. The tests were also used to verify previous plant coverage data using a lithium sulfate tracer. Stationary, in-canopy nozzles, which are being developed to simulate the dynamic application system, were also tested and the results reported for every furrow and alternate furrow nozzle placement. In all instances the in-canopy methods were superior to overhead or above crop application and verified the earlier reported plant coverage data obtained by tracers.
author list (cited authors)
LYLE, W. M., BYNUM, E. D., BORDOVSKY, J. P., & ARCHER, T. L.