- £2 - 
Insect 
Pyrausta nubilalis Hbn. 
R hago lotis pomcnella Walsh 
Rhya c i onia buoliana Schiff . 
Roaches 
S arcopte s sp. 
Solenopri s sa . 
Stomoxv s caici tra ns L, 
T etranychus telarius L. 
Thrips on cauliflower 
Thrips on cotton 
Thrips t abaci Lind. 
Result 
Effective 
Less effective 
then derris or 
nicotine 
Promising 
Effective 
Effective 
Effective 
Ineffective 
Ineffective 
as repellent 
Effective 
Less effective 
than derris 
Effective 
Effective 
Ineffective 
Effective 
Effective with 
Ultrawct 
Effective against 
imnature stages 
Promising 
Less effective 
than derris 
Less effective 
than derris 
Thyanta custator E. 
Thyridopteryx ep hemeraeformi s Effective 
Haworth 
R eference 
Batchel&er 21; Eervey 190; 
Walker 451 
Eatchcldor et al. 22 
H. Y. Agr. Expt. St a. 306 
Friend and Plumb 153 
Boyd 39 
Wille et al. 471 
Brit. Guiana Dept. Agr. 48 
Laake 256 
Hamilton 184; Richardson 340; 
Weigel and Richardson 461 
Weigel and Nelson 459,460 
i T c Y. Agr. Expt. St a. 306 
S. C. Agr. Expt. Sta. 387 
Bur. Ent. & PI. Quar. 423 
Weigcl and Kelson 458 
Walker 451 
H. Y. Agr. Expt. Sta. at 
Cornell Univ. 307 
Turner and Walker 409 
Weigel and Nelson 459, 460 
Cassidy and Barber 65 
Hamilton '.85 
