October, '15] CHILDS: CONTROL OF THE APPLE LEAF-ROLLER 463 



Table L Arsenate of Lead 













Results 



No. of 

 Exp. 



Date of 

 Applications 



Materials Used 



Trees 

 Sprayed 



Spray 

 per Tree 



Fruit Counted 



Soimd 



Injured 



Per cent 

 Injured 



1. 



1. April 3 



2. April 14 



3. May 1 



4. May 29 

 Fruit sprayed only 



Lime-sulfur 1-18 

 Arsenate of lead 2-50 

 Lime-sulfur 1-27 

 Arsenate of lead 2-50 

 Lime-sulfur 1-36 

 Arsenate lead 3-50 

 Lime-sulfur 1-30 

 Arsenate of lead 3-50 



48 

 48 

 40 



3i gal. 

 3? gal. 

 4 gal. 



Exp. 1 



1,022 

 Check 1,048 



528 

 743 



194 

 305 



18.8 

 29. 



2. 



1. April 3 



2. April 14 



3. May 1 



4. May 29 

 Fruit sprayed only 



Lime-sulfur 1-18 

 Arsenate of lead 4-50 

 Lime-sulfur 1-27 

 Arsenate of lead 4-50 

 Lime-sulfur 1-36 

 Arsenate of lead 3-50 

 Lime-sulfur 1-38 

 Arsenate of lead 3-50 



50 

 50 

 50 

 50 



3i gal. 

 4 gal. 

 4 gal. 

 4 gal. 



Exp. 2 



1,062 

 Check 1,048 



900 

 743 



162 

 305 



15. 

 29. 



3. 



1. April 3 



2. April 15 



3. May 1 



4. May 29 

 Fruit sprayed only 



Lime-sulfur 1-18 

 Arsenate of lead 2-50 

 Lime-sulfur 1-27 



Only 

 Lime-sulfur 1-36 

 Arsenate of lead 3-50 

 Lime-sulfur 1-38 

 Arsenate of lead 3-50 



50 

 50 

 50 

 50 



3i gal. 

 3i gal. 

 35 gal. 

 35 gal. 



Exp. 3 



1,060 

 Check 1,019 



800 

 800 



2 0 

 279 



24.5 

 27.5 



4. 



1. April 3 



2. April 15 



3. May 3 



4. May 29 

 Fruit sprayed only 



Lime-sulfur 1-18 

 Arsenate of lead 4-50 

 Lime-sulfur 1—27 



Only 

 Lime-sulfur 1-36 

 Arsenate of lead 3-50 

 Lime-sulfur 1-38 

 Arsenate of lead 3-50 



50 

 50 

 50 

 50 



4 gal. 

 4 gal. 

 4 gal. 

 4 gal. 



Exp. 4 



1,102 

 Check 1,019 



800 

 800 



302 

 279 



27. 

 27.5 



5. 



1. April 3 



2. April 14 



3. May 4 



4. May 29 

 For fruit only 



Lime-sulfur 1-18 

 Arsenate of lead 6-50 

 Lime-sulfur 1—27 

 Arsenate of lead 6-50 

 Lime-sulfur 1-36 

 Arsenate of lead 3-50 

 Lime-sulfur 1-38 

 Arsenate of lead 3-50 



50 

 50 

 50 

 50 



4 gal. 

 4 gal. 

 4 gal. 

 4 gal. 



Exp. 5 



1,177 

 Check 1,019 



1,017 

 800 



117 



279 



11. 



27.5 



6. 



1. April 3 



2. April 14 



3. May 4 



4. May 29 

 For fruit only 



Lime-sulfur 1-18 

 Arsenate of lead 6-50 

 Lime-sulfur 1—27 



Only 

 Lime-sulfur 1-27 

 Arsenate of lead 3-50 

 Lime-sulfur 1-36 

 Arsenate of lead 3-50 



20 

 20 

 20 

 20 



4 gal. 

 4 gal. 

 4 gal. 

 4 gal. 



Exp. 6 



This application was made on Johna- 

 thans, a variety which is not nearly as 

 susceptible to roller attack with a result 

 that no comparative counts were made. 



