Open AccessChinese Broccoli Insect Control, 1989
Author(s) -
Paul McLeod
Publication year - 1990
Publication title -
insecticide and acaricide tests
Language(s) - English
Resource type - Journals
ISSN - 0276-3656
DOI - 10.1093/iat/15.1.86a
Subject(s) - sprayer , randomized block design , horticulture , nozzle , block (permutation group theory) , split plot , mathematics , biology , agronomy , engineering , mechanical engineering , geometry
Chinese broccoli seedlings were transplanted to one-row plots located at Fayetteville, AR, on 10 Aug. Plots were separated by 6 ft bare ground and each plot held 12 plants at 2-ft intervals. Experimental design was a randomized complete block (4 treatments × 4 replications). Sprays were applied 1, 15 and 22 Sep with a hand held CO2 sprayer equipped with one Spraying Systems TX6 nozzle and calibrated to deliver 12.8 gpa. ICW and CL were counted on each plant on 5, 18, and 25 Sep. Plants were rated for foliar damage 20 Sep and 6 Oct.
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