- 72 - 
Insect 
Euschistus i mpictiy e ntris 
Stal 
Illi.ioia pisi Kelt., 
pea aphid 
Lophyras pini L. , larvae 
L ygus heaperus Knight 
Ly gas apical is Fieb, , 
adults 
Lygus apica l is Fieb. , 
nymphs 
Lygus prate as id L. 
Iygus sp. 
iviusca domestica L. , house 
fly 
iviyrm ica rubra L. , larvae 
Pectinophorg, gossypiella 
Saund. , first- ins tar pink 
bollworms 
Pieris rapae L. 
Pluto 11a maculipennis Curt, 
diamondback caterpillars 
Comparative Action 
cube "> derris 
Sprays : 
derris = cube 
derris ^> cube 
derris ^> cube 
Dusts: 
derris ~> cube 
cube >> derris 
cube >* derris 
derris >> cube 
Kerosene extracts: 
derris >cube 
Extracts: 
derris > cube 
Dusts: 
derris >► cube 
cube 
derris 
Pop i Ilia japonica I\fewm. , 
Japanese beetle 
P yrausta nub ilal is Hbn. , 
European corn borer 
Dusts: 
derris = cube 
, Dusts; 
cube = derris 
derris ^> cube 
cube — derris 
Extractives: 
derris >• cube 
Dusts: 
derris > cube 
Reference 
Cassidy and Barber 
Dudley, Bronson, and 
Carroll 
Spoon et al. 
Cassidy and Barber 
Smith, Clark, and 
Scales 
do. 
Smith and Scales 
Cassidy and Barber 
Campbell, Sullivan, 
and Jones 
Jones and Smith 
Spoon et al. 
Chapman and Cavitt 
N* Y. Agr. Expt. Sta. 
Campbell 
Walker and Anderson (193- 
do. (1937) 
Fleming and Baker 
Batchelder et al. 
