Open AccessAlfalfa Weevil Control, 1997
Author(s) -
J. T. Shaw,
Stephen J. Roberts,
Edward J. Armbrust,
J. W. Finger
Publication year - 1998
Publication title -
arthropod management tests
Language(s) - English
Resource type - Journals
eISSN - 2155-9856
pISSN - 2155-9848
DOI - 10.1093/amt/23.1.175
Subject(s) - sprayer , weevil , biology , instar , pyrethroid , zoology , toxicology , horticulture , larva , agronomy , botany , pesticide
Treatments were evaluated on a 2-year stand during the 1st alfalfa cutting period at the Southern Illinois University, Belleville Research Center. Plots were 40 X 50 ft with 4 replications of treatments in a RCB design. Efficacy of the pyrethroid insecticides Warrior 1 EC, Mustang 1.5 EW, and Baythroid 2 EC was compared with the commonly used insecticide Furadan 4°F and 2 experimental compounds. Treatments were applied 24 Apr with a tractor-mounted sprayer delivering 15.7 gpa at 25 psi and 2.5 mph through a 20-ft boom equipped with flat-fan nozzles (TeeJet 8002 VS) spaced 20 inches apart. Pre-treatment sweeps averaged 0.72, 3rd to 4th instar larvae per sweep.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom