-57- 
In Germany 430 acres of strawberry plants were severely attacked 
in 1941 by R. germanicus and Anthonomus rubi. These weevils were 
best contr dTl ed" by dust'ing with derris, or a mixture of derris and 
pyrethrura, at the rate of 27 pounds per acre, — Reimann (501 ) • 
Sitophilus oryza (L,), the rice weevil 
In South Australia derris was ineffective, — Andrewartha (19) • 
In India stored grain was ineffectively protected by mixing py- 
rethrum or derris with it,— Anonymous (4), 
Sternechus paludatus (Casey), a beanstalk weevil 
In New Mexico a commercial cube dust and derris dusts contain- 
ing 3 and 5 percent of rotenone, respectively, used as contact in- 
secticides, were not effective,— Shaw and Douglass (536 ), 
Derm est ida* 
Attagenus pioeus (01iv»),, the black carpet beetle 
Woolen fabric treated with derris resin was eaten only slight- 
ly by the larvae,— Heal (275 ), 
•Elateridae 
Agrlotes spp. 
In tests on the control of wirewom** on lettuoe in England, derris 
and Lonohocarpus failed to give protection against the larvae,— Speyer 
and Parr 15^9 ; » 
Meloidae 
Epioauta vittata (F), the striped blister beetle 
A dust containing 2 percent of rotenone, made by combining equal 
parts of talc and derris (4 percent of rotenone) was effective in 
destroying the striped blister beetle on garden crops in Arkansas, 
— Horsfall (289 , 290) . 
Unidentified or other blister beetles 
Rotenone is the standard insecticide for blister beetles. Nico- 
tine is ineff ective,— U, S, Bureau of Entomology and Plant Quarantine 
(628)« 
