288 FRUIT INSECTS 



underside of the leaf. The eggs hatch in about a week and the 

 larva first eats out a narrow strip of the leaf from the edge 

 towards the center and then rolls over a portion of the leaf, 

 making a case within which it remains during the day, feeding 

 mostly at night. The foliage of badly infested trees presents 

 a characteristic shredded appearance. 



The larvae grow rapidly and become full-grown in about 

 10 days ; they are then about f inch in length and are of a pale 

 bluish-green color. When mature they enter the ground to a 

 depth of three to six inches, where they remain curled up in 

 small round earthen cells about i inch in diameter until the 

 following spring. The transformation to the naked greenish 

 pupa takes place in late May and early June and the adults 

 appear about two weeks later. There is only one generation 

 annually. 



Treatment. 



This pest has been satisfactorily controlled in commercial 

 orchards by thorough spraying, just after the hatching of the 

 eggs, with arsenate of lead, 5 to 6 pounds to 100 gallons of water. 

 This is doubtless stronger than necessary; 4 pounds to 100 

 gallons would probably be just as efficient and safer for the 

 foliage. 



Reference 



Conn. Agr. Exp. Sta. Kept, for 1907, pp. 285-300. 1908. 



Another species of sawfly (Caliroa amygdalina Rohwer) 

 has been reported as attacking the peach and plum in Louisiana. 

 The adult sawflies appear in March or April. The female in- 

 serts her semi-transparent, flattened eggs into the tissue of the 

 leaf from the upper surface, and they lie next to the lower 

 epidermis ; they hatch in four to six days. The tad-pole shaped 

 larvae are smooth and shining, and until the last stage are covered 

 with a viscid slime. In feeding they skeletonize the leaf in the 

 manner of the pear slug. They become full grown in 9 to 10 



