Open AccessJapanese Beetle Larvae Control, Michigan, 1990
Author(s) -
D. R. Smitley,
T. W. Davis,
K. A. Kearns,
Clauzell Stevens,
C. C. Thomas
Publication year - 1991
Publication title -
insecticide and acaricide tests
Language(s) - English
Resource type - Journals
ISSN - 0276-3656
DOI - 10.1093/iat/16.1.264
Subject(s) - loam , sprayer , irrigation , environmental science , digging , horticulture , agronomy , nozzle , hydrology (agriculture) , soil water , biology , geography , geology , geotechnical engineering , soil science , archaeology , engineering , mechanical engineering
A grid of 3 × 3 ft plots separated by 2 ft wide buffer strips was established in irrigated rough adjacent to a fairway at Rochester Golf Club in Rochester. Six replications of each treatment were applied on 31 Aug. Temperature at application was 81°F with sunny weather conditions. Liquid products were applied with an R&D sprayer at 50 psi with an 8003 nozzle. Insecticides were mixed in water and applied at a rate of 4 gal/1000 ft2. Granular insecticides were applied with custom-made hand held shakers. The experiment was evaluated on 28 Sep by digging a 294 inch2 (six 7 × 7 inch squares) section from the center of each plot and examining thatch, roots, and soil for live grubs. This test was on Kentucky bluegrass with 1/4 inch thick thatch layer and sandy loam soil. Irrigation was run for 30 min prior to application. The pH of the irrigation water was 7.2. All liquid and nematode treatments were irrigated with 1/4 inch water applied through a watering can immediately after application.
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