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8. Leaf Rollers, 1912-1953 
GILLETTE, C P., and 7/ELDOE, G. P. (1794) 
1912.. THE FRUIT-TREE LEAF-ROLLER IE COLORADO. Col. State Exit. Circ. 5, 
'.■\ pp., illus. 
Black Leaf 40, carefully and thoroughly applied about the same 
dates as the first two sprayings with arsenicals, will give good re- 
sults against this moth ( Ar chips argyr ospila Walk. ) . 
A mixed spray of Black Leaf 40 and lead arsenate is little more 
satisfactory than either one of the insecticides used alone. Further- 
more, the cost of such a spray would he too great for practical purposes 
( P . 42). 
GILL, J. 3. (1795) 
1913. THE ERUIT-TREE LEAF-HOLLER (ARCHIPS ARGYRO SPILA TTALK.). U. S. 
Dept. Agr. Bur. Ent. Ball. 116, Pt . V, pp. 91-117, illus. 
Applications of arsenicals alone and in combination with 40-per- 
cent nicotine solution have greatly reduced the amount of injury to 
apples and foliage, hut these sprays nave not been so effective as is 
desirable against this moth in Colorado (p. 108). 
GILLETTE, C. P., and TCELDON, G, P. (1795) 
1913. THE FRUIT TREE LEAF-ROLLER IE COLORADO. Colo, State Ent. 4th Am. 
Rept. Circ. 7, pp. 30-67, illus. [Abstract in Rev. Appl. Ent. (A) 2: 
14-15. 1914.] 
In insectary tests to control A rchips argyrosp ila T7alk., Black 
Leaf 40, Eicofume, and other tobacco preparations used alone or with 
soap were of no value. From orchard experiments it was concluded that 
Black Leaf 40, carefully and thoroughly ai:>plied about the same dates 
as the first two sprayings with arsenicals will give good results. 
A mixed spray of Black Leaf 40 and lead arsenate is little more satis- 
factory than either one of the insecticides used alone; furthermore the 
cost of such spray would be too great for practical purposes. 
T3ELD0H, G. P. (1797) 
1913. THE FRUIT-TREE LEAF-ROLLER. Calif. State Comn. Hort . Monthly 
Bull. 2 (9): 637-647, illus. [Abstract in Rev. Appl. Ent. (A) 1: 
425-426. 1913.] 
Thorough drenching with 3 lb. lead arsenate to 50 gal. water, or 
with Black Leaf 40 (1:800) will kill the young larvae of the moth 
A rchips argyro spi la 17alk. just after the loaves come out in the spring. 
