512 MISC. PUBLICATION 657, U. S. DEPT: OF AGRICULTURE 
FIcURE 131.—The boxwood leaf miner: A, Blisters on leaf. X 4; B, maggots 
exposed by the removal of the leaf tissue, X 7; C, adult, or fly, X 12. 
before the larvae emerge should prove an effective control in small 
ornamentals. Felt and Bromley (754) obtained a material reduction 
in a heavily infested tree by using a spray composed of 4 pounds of 
rosin-residue emulsion and 4+ pounds of cube powder to 100 gallons of 
