248 



PESTS OF ORCHARD AND SMALL FRUITS 



The Peach Twig-moth {Aiiarsia lineatella Zell.) 



In the spring, about the time of blooming of peach trees, terminal 

 clusters of leaves here and there wilt, and the twigs soon die. Close 



examination will show 

 that a tiny borer has 

 been at work in the 

 twigs, eating out the 

 inner substance for 

 an inch or so, or dig- 

 ging out a hole in 

 one side. The larva 

 itself, if discovered, 

 will be found to be 

 quite small, with a 

 dark head and dark 

 terminal segment. 



Shortly the little 

 gray moths, expand- 

 ing about half an 

 inch, are about, and 

 a second brood is on 

 the w^ay. Later there 

 is still another brood. 

 The larvse of these 

 later generations 

 often work in the 

 young fruit, causing 

 drops of gum to 

 exude. 



The winter is passed 

 as a larva, hidden away in a little chamber just under the outer 

 bark, in the axil of a new shoot or bud. To control, spray with lime 

 sulphur, at the time that the buds are first swelling, so as to kill the 

 larva within its winter home. If this treatment is omitted, spray 

 with arsenate of lead, 4 pounds to 50 gallons of water, just as the 



Fig. 328. 



Work of the Peach T wig-moth. 

 Original. 



