The Montgomery advertiser., 1906-12-11
Peach Tree Rorern.

A recent bulletin from the Georgia station makes the following state ments;
 l. The importance of the peach tree borer is emphasized by the fact that while crown gall Is probably the most serious menace confronting the fruit grower in this sectIon--outranking even brown rot, the San Jose scale and the curculio--its spread is expe- dited and increased by the lodgment which 1t effects upon the exposed tis- sue of the wounds and abralsions made either directly by the borer or by the knife In it's removal.
 ?. The life history of the borer In Georgia is found to differ materially from the suppositIon generally ob- taining regarding its habits in this section.
 3. The dates of it's transformations, as reported from other parts of the country, are so greatly at variance that their reconciliation with any scheme of climatic or lati,adinal influ- ence is impossible. Inc ascertained facts for Georgia are therefore the only ones of which cognizance is talk en in this bulletin.
 4. Equation Gin Georgia),~. occurs principally during the month of Au- gust. A few larvae leave their chan nels in the tree trunk and pupate ear
 
 over eighty per cent, pupate after Au- gust 1.
 5. The adult moth emerges from the cocoon and lays It's eggs chiefly between August 25 and September 20. As the eggs hatch in less than a week most of the larvae are still diminh- tive during the last week in October, and, as only a small number has suc- ceeded in penetrating the tree at that time the great majority will be found still on the outside under a mass of gum and refuse.
 6. Larval feeding continues through out the entire winter and spring up to the time of pupation. Occasional ly, during very severe weather, the larvae may become inactive or even dormant but resume their work of de- struction as soon as milder weather returns - ,
 [. While larvae of all sizes may be found on May 1. and also an occasional instance of premature pupation, con siderably over fifty per cent are less than half grown at that date.
 g. The adult moth, while ovipositing preferably on the main trunk close to the ground, will, If deterred from so doing, go higher up and lay its eggs, if necessary, even upon the lateral branches. It is therefore useless to contemplate the prevention of oviposi- ting in any way whatever.
 g. The larvae cannot be poisoned by arsenics or affected by any chemical application after they have once drilled into the interior of the tree and can only be dislodged by mechan- ical means
 10 Practical remedial procedure is therefore reducible to four heads:
 (a) "Wrapping"-with brown paper or newspaper the trunk of the tree to a height of some eighteen inches from the ground This should be effected the last week in July. Spring wrap ping" Is valueless. Tarred paper Is no more effective than newspaper, and more expensive. The function of the wrapper" Is merely to prevent tenn porarily the larvae from. penetrating the tree.
 (b). ''Mounding" the trunk foot high with earth Immediately after wrapping" or about August i. This is to force those larvae which tdespite the "wrapper"), succeed In gaining en- trance, to channel into the tree at the artificial surface of the mound. and not below the natural level of the ground. Spring "mounding" Is of no service and ultimately injurious to the trees.
 (c) "worming"-not with 8 knife