Open AccessPotato Leafhopper Control, 1997
Author(s) -
J. C. Parr,
B. C. Pass
Publication year - 1998
Publication title -
arthropod management tests
Language(s) - English
Resource type - Journals
eISSN - 2155-9856
pISSN - 2155-9848
DOI - 10.1093/amt/23.1.172
Subject(s) - sprayer , acre , leafhopper , nozzle , biology , volume (thermodynamics) , horticulture , jet (fluid) , dimethoate , zoology , agronomy , toxicology , mathematics , botany , physics , engineering , mechanical engineering , hemiptera , mechanics , pesticide , quantum mechanics
The plots, 68 ft X 68 ft, were in a 6-yr-old stand of ‘Wampr’ alfalfa. All treatments and the untreated control were replicated 3 times in a RCB design. Sprays were mixed to apply the proper rates in 20 gal total vol/acre. Treatments were applied 7 Jul with a low-pressure, low-volume Hahn field sprayer equipped with 21 Stainless steel 8003 Tee Jet nozzles and operated at 35 psi. A standard treatment of dimethoate 4 EC was applied at the rate of 0.25 lb (AI)/acre. PLH densities were determined 3, 7, 10, and 18 DAT by collecting 20 sweeps from each plot with a standard 15-inch-diam beating net.
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