FRUIT ly SECTS 



can be destroyed by plowing infested orchards either in late 

 fall or early spring. Thoroughly cultivated orchards will 

 rarely suffer serious injur}- from this miner. Experiments 

 indicate that many of the larvLi^ and pup^B can be killed in the 

 mines by thorough applications of 10 or 15 per cent kerosene 

 lime emulsion. Just as effective work with less danger of in- 

 juring the foliage could doubtless be done with " Black Leaf 

 40 " tobacco extract, one pint in 100 gallons of water, adding 4 

 pounds of soap to each 100 gallons to make the Uquid stick and 

 spread better. 



References 



Briinn, Cornell Univ. Exp. Sta., Second Kept., pp. 155-157. 

 Forbes, 4th Kept. State Ent. 111., pp. 45-50. 1889. 

 Conn. (Storrs) Agr. Exp. Sta. Bull. 45. 1906. 

 U. S. Bur. Ent. Bull. 68, Pt. III. 1907. 

 Del. Agr. Exp. Sta. Bull. 87, pp. 3-9. 1910. 



1883. 



Some Lesser Leaf-miners of the Apple 



The following four species of small caterpillars work as 

 miners in the leaves of apple, and while often numerous enough 

 to attract attention, they rarely appear in sufficient numbers 

 to do serious injur}-. 



The spotted tentiform leaf-miner {Lithocolletes blancardella 



Fabricius) . 

 The tiny light yellow caterpillars, only J of an inch long, 



make a small mine 

 a})out J an inch long 

 on the lower surface 

 of the leaf, which 

 causes a slight crimp- 

 ing of the leaf, thus 



Fig. 76. — The moth of the spotted tentiform leaf- ^ivmg the mme a 



miner (X 12). tent-likc appear- 



