Open AccessBlack Aphid and Yellow Aphid Control on Pecans in Far West Texas, 1982
Author(s) -
J. D. Stone,
J. N. Fries
Publication year - 1983
Publication title -
insecticide and acaricide tests
Language(s) - English
Resource type - Journals
ISSN - 0276-3656
DOI - 10.1093/iat/8.1.43a
Subject(s) - sprayer , aphid , orchard , horticulture , mist , biology , botany , agronomy , geography , meteorology
A pecan orchard located in the El Paso Lower Valley with trees evenly spaced 9.15 m apart was chosen for this test. Thirty trees of mixed variety were assigned 6 treatments (5 trees/treatment) in a completely randomized design. Foliar application was made on Sep 8 with a gasoline-powered backpack mist-sprayer (Vandermolen KWH 66). Each treated tree received a total of 3.78 1 solution making the rate of application 452.33 1/ha. Aphid counts (10 compound leaves/tree) were taken on 6 dates.
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