THE COTTONY MAPLE SCALE 
13 
TABULATED STATEMENT OF TESTS WITH INSECTICIDES (CONTINUED) 
EXP. 
CONDITIONS 
INSECTICIDE 
RESULTS 
2 
Four large scales. Eggs and 
larvse. 
Ker Emul. 33 1-3% Everything soaked 
kerosene with oil and dead 
3 
Several large females. Eggs 
and larvse. 
Do. 25% 
Everything appears 
to be dead. 
4 
Mass of females. 
Eggs and larvae. 
Do. 20% 
Emulsion penetrated 
well. A few eggs un 
der one scale ap¬ 
peared to be alive, 
but failed to hatch 
by VII, 26. 
5 
Isolated females. 
Eggs and larvae. 
Do. 15% 
Larvse and most eggs 
dead. Two scales 
had fresh eggs un¬ 
der them, some of 
which had hatched 
by VII, 26. 
6 
Isolated large female 
Do. 10% 
Larvse reached are 
dead. Emulsion 
did not penetrate. 
Abundance of eggs 
and larvse in center 
of masses. 
7 
Clustered females. 
Well protected eggs and 
larvae. 
Do. 5% 
Exposed larvae and 
eggs under smaller 
scales all dead. 
Large masses with 
many young. 
8 
Scattered females. 
Tak-a-nap, 1 lb 
to 1 gal. water. 
Penetrated and k illed 
well. Two 1 i ve 1 ice 
under one scale. 
9 
Large masses. 
Do., 1 lb to \}/2 
gal. water 
Everyth ing appears to 
be dead. 
10 
Masses of females and eggs. 
Do., 1 lb to 2 gal 
water. 
Everything dead ex¬ 
cept possibly one 
large mass. Eggs 
did not hatch by 
VII, 26. 
11 
Isolated females. 
Do. 1 lb to 3 gal. 
water. 
Penetrated well. 
Everything dead. 
13 
Isolated scales. 
Not large. 
Good’s whale oil 
soap, 1 lb to V /2 
gal. water. 
Eggs and larvse all 
killed. 
14 
Many females, larvae and 
eggs. 
Do.l lb. to 2 gal 
water. 
Masses penetrated and 
everything killed. 
15 
Do. 
Do. 1 lb. to 3 gal 
water. 
Everything exposed, 
dead. A few live 
larvse under two 
scales. 
16 
Clustered females. 
Do. 1 lb. to 4 gal. 
water. 
•Eggs and larvse k illed 
where reached. 
Penetration poor. 
Eggs from center 
masses hatched by 
VII, 26. 
