Circular 23 - .Reference Index 
33 
Larkspur 
characteristics ; 
cost; manufacturers 
and distributors 
21-44. 
use to control head 
lice... 9-10; 21-44. 
Larvicides 
Gardinol W\A. as 
emulsifying agent 
21-35. 
mosquito control 
7-11,17. 
petroleum (crude oil} 
21-62. 
Lead arsenate 
control venomous 
caterpillars 15-16. 
Legionary ants ( Be it on 
spp. ) 
habits 15-3. 
Lesser r;rain borer 
damage to wheat 
(illus.)4-2. 
Lice 
biology 9-3. 
control 9-8. 
on dogs 19-21. 
on horses. .. .19-4. 
dissemination. . .9-7. 
effects on man.. 9-2. 
identification. .9-3. 
injury to horses 
19-4. 
kinds 9-2. 
attacking live- 
stock 19-2. 
body 9-5,10. 
head 9-3,8. 
on dogs 19-21. 
pubic. 9-7,16. 
larkspur as ointment 
21-44. 
materials for control 
cube powder. .21-24. 
derris powder wash 
21-25. 
kerosene 21-43. 
vinegar. 
9-9,10,16; 21-80. 
references. 9-17. 
symptoms on dogs 
19-21. 
Lime 
caution 21-45 . 
characteristics ; 
price; availability 
......a... ..a. fcJL— *fP e 
use 
control millipedes 
15-31. 
diluent 
7-20; 21-45. 
Lime sulfur 
cost ; manufacturers 
and distributors 
21-46. 
use 
control mange mites 
on horses. .19-8,9. 
general 21-46. 
repel powder-post 
beetles 
6-9; 21-46. 
Lime water 
treating skin irrita- 
tions 15-18. 
Linognathus piliferus 
Burm. 
sucking louse of 
dogs 19-21. 
