Open AccessControl on Collards, 1987:
Author(s) -
K. A. Sorensen,
K. A. Kidd
Publication year - 1989
Publication title -
insecticide and acaricide tests
Language(s) - English
Resource type - Journals
ISSN - 0276-3656
DOI - 10.1093/iat/14.1.112a
Subject(s) - sprayer , randomized block design , acre , plastic mulch , mulch , nozzle , mathematics , horticulture , agronomy , biology , engineering , mechanical engineering
‘Georgia LS’ collards were transplanted 29 Apr near Benson, N.C. Single-row plots, 10 ft long on 60-inch centers, were replicated 4 times in a randomized complete block design. Alleys of 5 ft were used between replicates. Black plastic mulch and trickle irrigation were used in all plots. Treatments were applied with a CO2-pressurized backpack sprayer using a single hollow-cone nozzle (18X). Application rate was 54 gal/acre delivered at 60 psi. Plyac spreader-sticker was used with all treatments. Applications were made 30 May, 8, 15, 22, and 29 Jun; and 6 and 1.3 Jul. Foliar damage ratings were made 19 and 26 Jun and 2, 10, and 20 Jul.
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