Open AccessAphid Suppression on Spinach, 1986
Author(s) -
Paul McLeod
Publication year - 1987
Publication title -
insecticide and acaricide tests
Language(s) - English
Resource type - Journals
ISSN - 0276-3656
DOI - 10.1093/iat/12.1.152
Subject(s) - sprayer , spinach , aphid , randomized block design , horticulture , row , mathematics , yield (engineering) , nozzle , agronomy , biology , materials science , physics , ecology , composite material , computer science , thermodynamics , database
Five rows of spinach, each separated by 1 ft, were planted in 6-ft wide beds on 11 Nov at the Ralph McClure farm at Kibler, AR. Plots consisted of 1 bed (5 rows) x 30 ft. Plots were separated by 1-ft bare ground on each side and 3 ft of spinach separated plots within the same row. Experimental design was a randomized complete block (8 treatments x 4 replications). Sprays were applied 13 Mar with a hand held C02 sprayer equipped with 3 Delvan #10 nozzles and calibrated to deliver 15.5 gpa. Temperature at spraying was 47°F. Ten randomly selected plants were cut from each plot at 3 and 20 days after spraying and transferred to the laboratory where the number of live aphids were determined by plant dissection.
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