Insect 
Popillia japonica Newm. 
Prenolepis sp. 
Prodenia eridania Cram. 
Psallus seriatus Reut . 
Psoroptos sp. 
Pteronidea ribesii Scop, 
Pulvinaria vitis L 
- 91 - 
Result 
Plutella maculipennis Curtis Effective 
Ineffective 
Cube less effec- 
tive than 
derris 
Recommended 
Some control 
Cne-half as 
effective as 
derris as a 
repellent 
Promising as 
a repellent 
Fairly effective 
Ineffective 
Effective 
Less effective 
than par is 
green against 
half- grown 
larvae 
Ineffective 
Effective 
Effective 
Reference 
Howard and Mason 201; U. S. 
Dept. Agr. 414, 417, 420; 
White 463, 464 
Colo. Agr. Expt. Sta. 87 
Texas Agr. Expt. Sta. 402 
Crosby and Chupp 109; Kervey, 
Huckett and Glasgow 191; 
E. L. Thomas 405; U. S. 
Dept, Agr. 417 
Colo. Agr. Expt. Sta. 88 
Fleming and Baker 150 
Bromley 51 
Hamilton 185 
van Gundia 447 
British Guiana Dept. Agr. 48 
Wisecup 474 
Ewing 133; Ewing and McGarr 
134 
Wille et al. 471 
Illinois Agr. Expt. Sta. 212; 
N. Y. Agr. Expt. Sta. 305 
100$ effective Hamilton 185 
Dusts very 
effective 
N, Y. (Geneva) Agr. Expt. Sta. 
304 
Fairly effective Hamilton 185 
