No. 6. DEPARTMENT OF AGRICULTURE. 40S 



pupa wliich changes to the adult moth aud leaves the tree early in 

 June to lay its eggs for the next generation. 



Treatment. 



More than tweut}- different methods of treatment for this insect 

 have been tested at different times, most of them proving of little 

 value. Only those which have given the best results are considered 

 here. 



Mounding. — This treatment seems to be quite effective, keeping 

 cut "from one-half to seven-tenths of the borers." The earth should 

 be mounded up around the trunk of the tree to the height of a foot or 

 more, about the first of June, aud should remain there till about the 

 last of August, each year. 



Paper Protectors. — These may be either of tarred paper or of sev- 

 eral thicknesses of newspaper. The paper should be closely wrapped 

 around the trunk, the lower edge of the wrapping being covered by 

 the earth, and the upper edge being at least fifteen inches from the 

 ground. The times of applying and removing the wrapping should 

 be the same as for mounding. 



Cutting Out. — This treatment is of course remedial rather than 

 preventive and should be used together with the other methods 

 jiiven. It is desirable to cut out the borers in the fall before they 

 have done much damage, but they are so small at that time that 

 many are always overlooked, and it is therefore better practice to do 

 this work about the first of May when the borers are large enough 

 to be easily found. If cutting out each spring be followed by mound- 

 ing or by wrapping the trunks as already explained, much of the 

 loss by the attacks of the peach-tree borer can be prevented. 



THE PEACH-TWIG BORER. 



(Anarsia lineatella Zell.) 



This insect is very abundant in Pennsylvania and does much dam- 

 age though its presence is in most cases unknown to the peach 

 grower, who, for this reason, is not aware of his loss from the attacks 

 of this tiny moth. 



Life History. 



The little caterpillars of the peach-twig borer pass the winter 

 in the spongy bark, chiefly of the smaller crotches of the tree, in small 

 cavities they hollow out and which are marked by small masses of 



