326 APPENDIX. No. I. 



worm; its courfe is always downwards. The piogrefs 

 of the young worm is extremely flow, and if the egg is 

 depofited at any confiderable diftance above the furface of 

 the earth, it is long before the worm reaches the jn-ound. 

 The worms are unable to bear the cold of v/inter unlefs 

 covered by the earth, and all that are above ground after 

 frofi: are killed. 



By this hiftory of the origin, progrefs and nature of 

 the infetl, we ein explain the etfedfs of my method, 

 which is as follows : in the fpring, when the bloffbms 

 are out, clear away the dirt fo as to expofe the root of the 

 tree, to the depth of three inches ; furround the tree 

 with ftraw about three feet long, applied lengthwife, fo 

 that it may have a covering one inch thick, which ex- 

 tends to the bottom of the hole, the but ends of the 

 ftraw rcfi:ing upon the ground at the bottom. Bind this 

 ftraw round the tree with three bands, one near the top, 

 one at the middle, and the third at the furface of the 

 earth, then fill up the hole at the root, with earth, and 

 prefs it clofely round the ftraw. When the white frofts 

 appear, the ftraw iliould be removed and the tree Ihould 

 remain uncovered until the WofToms put out in the fpring. 



By this procefs the fly is prevented from depofiting its 

 egg ^vlthin three feet of the root, and although it rnay 

 place the egg above that diftance, the worm travels fo 

 flow that it cannot reach the ground before froff, and 

 therefore is killed before ii is able to injure the tree. 



The truth of the principle is proved by the following 

 fad — I pradtifcd this method witli a large number of 

 peach trees, and they flouriihed remarkably, without any 

 appearance of injury from the worm, for feveral years ; 

 I was then induced to difcontinuc the ftravv-- with about 

 twenty of them. All thofe ivbich are without tbejlraw have 

 declined^ ivhilc the others which have had the JI raw continue 

 as vigorous as ever, 



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