class 1 plants and were superior to naled in reducing the number of plants in 
class 3. Dursban and Metacil were superior to naled and equal to endosulfan 
in providing plant protection. 
SUMMARY 
In field tests conducted from 1963 to 1965 at Charleston, S.C., Azodrin, 
American Cyanamid CL-4+7470, Monsanto CP-40273, and Monsanto cp-ho2gh gave out- 
standing control of the cabbage looper in the spring and fall. Metacil, 
Niagara NIA-10242, American Cyanamid E.I. 65-1, General Chemical 6506 and 
9287, and Dursban also appeared promising for looper control but were tested 
less extensively. The above compounds all gave adequate control of light 
infestations of the fall armyworm. With the exception of General Chemical 
6506 and 9287 and Dursban, which were tested only against the cabbage looper 
and fall armyworm, all gave adequate protection against light infestations of 
the imported cabbageworm and the diamondback moth. Monsanto CP-40273 and 
American Cyanamid CL-47470 caused severe injury to the plant foliage. 
CHEMICAL NAMES OF THE NEW PROPRIETARY MATERIALS TESTED 
American Cyanamid CL-47470 cyclic propylene (diethoxyphosphinyl)- 
dithioimidocarbonate 
American Cyanamid E.I. 47031 cyclic ethylene (diethoxyphosphinyl)- 
1/  dithioimidocarbonate 
American Cyanamid E.I. 52160 0,0-dimethyl phosphorothioate 0,0-diester 
with 4,4'-thiodiphenol 
Bayer 52957 O- 5-chloro-l, 2-benzisoxazol-3-yl 0,0 diethyl 
phosphorothioate 
Metaci i> (Bayer 44646) 4-(dimethylamino)-m-tolyl methylcarbamate 
Bayer 41831 0,0-dimethyl 0-4-nitro-m-tolyl 
nhosphorothicate 
Bayer 25141 0,0-diethyl 0-/ p-(methylsulfinyl) phenyl/ 
plidaphoreunieste 
Bayer 50282 4-(diallylamino)-3,5-xylyl methylcarbamate 
Chemagro 4641 S-2,2-dichlorovinyl 0,0-dimethyl 
phosphorevnioate 
Compound 4072 2-chloro-1-(2,4-dichlorophenyl)vinyl diethyl 
phosphate 
Dursban 0,0-diethyl 0-3,5,6-trichloro-2-pyridyl 
phosphorothioate 
Geigy GS-13005 0,0-dimethyl phosphorodithioate S-ester 
with 4-(mercaptomethy1)-2-methoxy-/*- 
1,3,4-thiadiazolin-5-one 
General Chemical 9287 Tlanglsel W5 s5a5ay sb sedecachlorooctanyaro= 
2-methyl-1,3,4-metheno-2H-cyclobuta/ cd/- 
pentalen-2-o01 im 
1/ Tested in combination with E.I. 47031 as compound 65-1. 
ahs 
