é, DY 
L-3/ sary 1966 ARS 33-114 
Ws 33- J 14, UNITED STATES DEPARTMENT OF AGRICULTURE 
Agricultural Research Service 
FIELD EVALUATION OF CHEMICAI, COMPOUNDS FOR CONTROL OF 
CABBAGE CATERPILLARS 
1 
By C. S. Creighton and W. J. Se ae 
Entomology Research Division 
Trade names are used in this publication solely to provide specific 
information. Mention of a trade name does not constitute a guarantee or 
warranty by the U.S. Department of Agriculture and does not signify that the 
product is approved to the exclusion of other comparable products. 
3 
Prochaska et al. (agen) reported results of field tests conducted in 
1961 and 1962 in which certain compounds were evaluated for their effective- 
ness against the cabbage looper [ Trichoplusia ni (Htibner )/, the imported cab- 
bageworm / Pieris rapae (L.)7, and the fall armyworm [ Spodoptera frugiperda 
Coreg s Smith)/. This paper reports results obtained with additional chemical 
compounds that were evaluated in field tests conducted on spring and fall 
cabbage crops in 1963, 1964, and 1965, and is not a recommendation of any of 
the chemicals mentioned. 
Most of the new compounds tested had shown promise previously against the 
cabbage looper in laboratory-screening studies at Charleston, S.C. 
METHODS 
The tests were conducted on the Clemson University Truck Experiment 
Station grounds. Each of the experimental treatments was replicated six times 
ay The authors are grateful to F. P. Cuthbert, Jr., of this Division, 
for his invaluable assistance in suggesting materials for field tests on the 
basis of his earlier laboratory screening tests; also to Thomas L. McFadden 
and Robert B. Cuthbert, II, of this Division, for their assistance in con- 
ducting the field tests reported herein. 
2/ In cooperation with the South Carolina Agricultural Experiment 
Station. 
3/ Prochaska, R. G., Cuthbert, F. P., Jr., and Reid, W. J., Jr. 
Zectran and Bayer 44646 Show Most Promise in Control of Cabbage Caterpillars. 
Jour. Econ. Ent. 57: 490-492. 1964. 
