TABI V E II. 
Insecticide Used 
Strength of 
Insecticide 
Date of 
Spraying 
Date of 
Examination 
No. of Aphids 
on 6 Twigs 
From 2 Trees 
Black Leaf- 
1-30 
March 7 
March 15 
2 
Black Leaf- 
1-40 
a 
U 
2 
Black Leaf . - - 
1-50 
u 
44 
1 
Black Leaf ... — 
1-70 
44 
u 
1 
Black Leaf “40” _ _ 
1-600 
u 
u 
0 
Black Leaf “40”- . 
1-800 
u 
u 
6 
Black Leaf “40” 
1-1000 
u 
u 
7 
Rex Lime and Sulfur _ 
1-10 
a 
44 
1 
Rex Lime and Sulfur .. 
1-11 
u 
4 4 
2 
Soluble Oil - 
1-20 
44 
4 4 
0 
Check -. .. - 
93 
TABLE HI 
Insecticide Used 
Strength 
Date of 
Spraying 
Black Leaf-- 
1.30 
March 7 
Black Leaf..- 
1 40 
March 7 
Black Leaf_ 
1.50 
March 7 
and 28 
Black Leaf - _ 
1-70 
March 7 
and 28 
Black Leaf “40”.. 
1-600 
March 7 
Black Leaf “40”-. 
1.800 
March 7 
and 28 
Black Leaf “40”-. 
1.1000 
March 7 
Nico-Fume_ 
1.600 
March 7 
Nico-Fume . . 
1-800 
March 7 
Soluble Oil - 
1.20 
March 7 
Ker. Emul_ 
15% oil 
March 7 
Rex Lime & Sulfur 
1.10 
March 7 
and 28 
Rex Lime & Sulfur 
1.11 
March 7 
and 28 
Lime and Sulfur. - 
15-15.50 
March / 
Black Leaf . | 
r 
1.70 
3 lbs. to 
March 28 
Arsenate of Lead ) 
100 gals 
Lead Arsenate._ ) 
10 lb-100 
March 28 
Black Leaf “40” ) 
1.900 
Black Leaf “40” J 
1-1000 
March 28 
Lead Arsenate.. ) 
6 lb-100 
General Results in 
Killing Aphis 
General Results in 
Killing Twig-Borer 
Early 
Late 
Early 
Late 
Spray 
Spray 
Spray 
Spray 
Good 
— 
Unsatisfac¬ 
tory 
4 4 
— 
Good 
•-- 
Good 
Good 
4 4 
Unsatis¬ 
factory 
Good 
Good 
Apparently 
good but not 
enough 
trees 
44 
Good 
_ 
Good 
Good 
Good 
Unsatisfac¬ 
tory 
Unsatis¬ 
factory 
Good 
» i 
Poor 
— 
4 4 
Poor 
— 
4 4 
Good 
— 
4 4 
Poor 
— 
4 4 
Good 
Unsatis¬ 
factory 
Good 
Un satis 
factory 
Good 
Unsatis¬ 
factory 
Good 
Good 
— 
Poor 
Unsatis¬ 
factory 
Good 
44 
— 
Good 
— 
44 
Good 
— 
44 
