- 55 - 
Insect and Starro 
Dipt era (ccr.t . ) 
Ocstridao (cent.) 
■^■^'pcdcrria larvae 
-■>yj 
Preparation Eff octivcnoss 
Pov;dor in v/atcr 94^ kill 
(1:20) 
Rof orenco 
MacDcugall 
(59, 60) 
in 1924 
Ditte 
Powder in v;ater 
(1:8.3) + soap 
(1:33.2) 
Effective 
U. S. Dopt. 
Agr. (100) 
in 1923 
Ditto 
Pcwder + vase- 
line (1+5) 
Effective 
Ditto 
Ditto 
Powder as a 
dust 
Effect ivo 
U. S. Dept. 
Agr. (102.) 
in 1927 
Ditto 
Ditto 
Powder + vase- liTfoctivo 
line (1+2) 
applied to holes 
PoY/dor + soft Effect ivo 
paraffin (1+2) 
Vfolton (106) 
in 1925 
Yfalton (107) 
in 192L7 
Ditto 
Powder + soft Effective 
paraffin + olive 
oil (1+1+1) 
Ditto 
Ditto 
Ditto 
Hyped orma bovis 
Degcer (northern 
cattle grub) 
Powder + vase- Effective, 
lino (1+2) 
applied to holes 
Powder + soap Effective 
in water (1:8.3) 
+ soap (1:33.2) 
Co;.i'l extract Effective 
(1:10) 
Vfolls, Bishepp, 
and Laake (109) 
in 1922 
Ditto 
Bishopp et al, 
(6) in 1926 
Ditto 
Ditto 
Powder in water- 
(1:16.6) + soap 
(1:33.2) 
Povider as a 
dust 
Effective 
Effective 
Ditto 
Ditto 
Ditto 
Powder + 
petrolatum 
Effective 
Ditto 
