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ARS Home » Southeast Area » Tifton, Georgia » Crop Protection and Management Research » Research » Publications at this Location » Publication #98286
Title: SPRAY DROPLET PENETRATION IN COTTON CANOPY USING AIR-ASSISTED AND HYDRAULIC SPRAYERS

Author
item Sumner, Harold

Submitted to: National Cotton Council Beltwide Cotton Conference
Publication Type: Proceedings
Publication Acceptance Date: 4/1/1999
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: The effectivness of three sprayer configurations, air-assisted, over-the-top, and drop nozzles, was evaluated using four different insecticides to control lepidopterous insect pests in cotton. In 1998, seed cotton yields were negatively correlated with the number of worm-damaged squares. Bioassays of leaves from the top, middle, and bottom of plants treated with Tracer using the different sprayer types indicated that all three systems provided adequate coverage to the top of the plant, but the air-assisted sprayer provided the best coverage throughtout the plant. The over-the-top sprayer provided the poorest coverage to the bottom of the plant, while the air-assist and drop nozzle sprayer provided good coverage to the middle of the plant canopy.