- 57 - 
Insect and Sta2;e 
Proparaticn 
Effect ivenoss 
Rof eronce 
Unclassified Insects 
Maize stalk borer 
Powder in v/atcr Effective 
(1:90) 
Ripley and 
Hepburn (80) 
in 1928 
Ditto 
Mites causing 
curly-loaf 
Powder as a 
dust (1:12) 
Less effective 
than above 
Com'l extract Effective 
in water (1:3000) 
Ditto 
Anon. (3) 
in 1927 
Rice borer, larvae 
Fresh root sap Effective, 
in water 
Otanes (73) 
in 1925 
i^carma 
Goi-nasidao 
Domanyssus g^Hi^^Q 
Dogccr (chicken nite) 
Powder as a 
dust 
Effective 
Davidson (20) 
in 1924 
Ditto 
Powder + flour Ineffective 
(1+1) ..s a dust 
Ditto 
Ditto 
Ditto (in jars) 
Ccr.i'l extract Ineffective 
in v/f.ter (1:500) 
Pow ''.or as a. 
dust 
100?^ kill 
in 24 hours 
Ditto 
Mclndoo, 
Sievors, and 
Abbott (66) 
in 1919 
Ditto (in 
chicken house) 
Powder as a 
dust 
KilL inconplote 
Ditto 
Tetranychidao 
Tetranychus tclarius L. 
(red spiders ) 
Powder in water Effective 
CarloSD (17) 
in 1926 
Ditto 
Cciii»l extract 
(1:300) 
25% control 
De Ong and 
VJhite (26) 
in 1924 
Ditto 
Powder as a, 
dust 
Ineffective 
Mclndoo, 
Siovers, and 
Abbott (66) 
in 1919 
