ATTACKING THE LEAVES. I99 



Remedies. — When these larvae are numerous they sometimes 

 do considerable damage to the young foliage of the peach-tree. 

 They may be subdued by hand-picking, or by shaking them 

 from the trees and crushing them under foot, or by syringing 

 the leaves of the trees with Paris-green and water in the 

 proportion of a teaspoonful to two gallons of water. 



_ No. 103.— The Peach-tree Aphis. 



Myzus pcrsicce Sulzer. 



This aphis begins to work upon the young leaves of the 

 peach-trees almost as soon as they burst from the bud, and 

 continues throughout the greater part of the season, unless 

 swept off, as sometimes happens with surprising rapidity, by 

 insect enemies. These lice live together in crowds under 

 the leaves, and suck their juices, causing them to become 

 thickened and curled, forming hollows with corresponding 

 reddish swellings above; frequently the curled leaves fall 

 prematurely to the ground. The perfect winged females are 

 about one-eighth of an inch long, black, with the under side 

 of the abdomen dull green, the wingless females rusty red, 

 with the antennse, legs, and honey-tubes greenish. The 

 winged males are bright yellow, streaked with brown, with 

 black honey-tubes. 



The insects which prey on the apple-tree aphis. No. 57, 

 feed on this species also, and the remedies recommended for 

 that insect are equally applicable to this one. 



SUPPLEMENTAKY LIST OF INJURIOUS INSECTS WHICH 

 AFFECT THE PEACH. 



ATTACKING THE TRUNK. 



The flat-headed apple-tree borer. No. 3, and the divaricated 

 Buprestis, No. 104, both injure the trunk of the peach-tree. 



