Open AccessGarden Fleahopper, Insect Growth Regulators, 1975*
Author(s) -
Lily Stuart,
Linda Butler
Publication year - 1981
Publication title -
insecticide and acaricide tests
Language(s) - English
Resource type - Journals
ISSN - 0276-3656
DOI - 10.1093/iat/6.1.210
Subject(s) - sprayer , tractor , boom , environmental science , palm oil , horticulture , mathematics , agronomy , biology , engineering , agroforestry , automotive engineering , environmental engineering
Sprays were applied to three-year-old ‘Narragansett’ alfalfa at the West Virginia University Reedsville Experiment Farm on July 10 with a John Bean tractor-mounted hydraulic sprayer with a 6 m boom, tank capacity 189 liters, pressure 2.1 kg/cm2 and calibrated to deliver 243 liters/lia at a tractor speed of 5.6 to 6.4 km/h. Treatments were replicated four times in a completely randomized design, using 12 x 18 m plots with 6 m alleys between rows for tractor access. Samples were collected by vacuum machine.
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