Open AccessAlfalfa Insect Control on Spring Regrowth in Minnesota, 1991
Author(s) -
W. D. Hutchison,
David W. Bartels,
J. H. Rinkleff
Publication year - 1994
Publication title -
arthropod management tests
Language(s) - English
Resource type - Journals
eISSN - 2155-9856
pISSN - 2155-9848
DOI - 10.1093/amt/19.1.169
Subject(s) - sprayer , spring (device) , biology , boom , insect , horticulture , tractor , canopy , zoology , agronomy , environmental science , botany , engineering , automotive engineering , structural engineering , environmental engineering
This test was conducted in a 1-year-old alfalfa stand located at the University of Minnesota Agricultural Experiment Station at Rosemount. Plots measuring 20 × 40 ft were replicated 4 times in a RCBD. A single treatment was applied 29 May using a tractor-drawn FMC sprayer with 25-ft boom, delivering 20 gpa at 40 psi. All treatments were applied between 1 100-1300 h; wind speed was ≤6 mph and ambient temperature averaged 70°F. Insect populations were monitored 1 Jun (3 DAT), 5 Jun (7 DAT) and 12 Jun (14 DAT) by taking 10 pendulum sweeps per plot with a 15-in diameter sweep net.
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