-87- 
The tarnished plant bug can be reduced by the use of mixtures 
containing either a dust impregnated with a derris dust or a pyre- 
thrum extract •-■ -U* S* Bureau of Entomology and Plant Quarantine 
(623 , P- 70), 
Poeoilocapsus lineatus (P») , the four-lined plant bug 
Roses infested with this bug should be treated with copper-rote- 
none dust»— Mc Daniel (379) • 
Pentatomidae 
Aelia sp* 
In laboratory and field experiments in Germany dusting with derris 
caused no mortality of adults •--Tischler (593) * 
Antes ti a lineaticollis (Stal) 
The use of a strong water extract of Tephrosia vogelii as a 
contact or stomach poison, and in baits, proved completely inade- 
quate as a control of this bug on coffee in Uganda*— Taylor ( 584) • 
In experiments conducted in the Belgian Congo a pyrethrum dust 
acted more quickly than did a 5*3-percent rotenone dust, and much 
more quickly than a dust prepared from the leaves of T* vogelii *— 
Lefevre ( 361 ) » 
Poly cor is sp. 
Burygaste r sp* 
No mortality of adults of these bugs was given by dusting with 
derris in Germany.— Tisohler (593 )* 
Eusohlstis tristlgmus (Say) 
Eusohistls variolarius P* de B* 
Derris dust (1 percent of rotenone) did not control these penta- 
toraids on tomatoes*— Mundinger (433) • 
Ifcirgantia histrionioa (Hahn), the harlequin bug 
Because of the adhesiveness of talo, derris-talo mixtures were 
more effective in laboratory tests than derris-sulfur mixtures or 
derris alone* Dusts of derris, timbo, or Tephrosia containing talc 
