650 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



tested on a commercial scale. After reducing the number of 

 borers by mounding and wrapping the grower must resort to 

 the old-fashioned method of " worming " the trees, by digging 

 them out by hand. This should be done in the fall and again in 

 late spring. Professor Starnes strongly recommends that in 

 Georgia the chief dependence be placed upon the fall worming, 

 as most of the young larvae are then found upon the surface bark 

 of the tree, more or less involved in a mass of gum and excreta, 

 with which they may be readily scraped from the tree, according 

 to his observations. For this work he recommends a small 

 curved steel blade or hook about 4 or 5 inches long inserted in 

 a wooden handle a foot in length. In the North fall worming 

 seems to be less satisfactory. For spring work in excavating 

 the larger worms, a sharp knife and a stout wire are common!}' 

 used, although many prefer a blacksmith's hoof-knife or similar 

 tools which are specially constructed for the work. 



The Peach Twig-borer * 



On the Pacific Coast the Peach Twig-borer, often known there 

 as the peach worm, is one of the most serious pests of the peach. 

 In the Eastern States.it has been injurious in Delaware, Virginia 

 and Maryland, but only occasionally. Probably the insect occurs 

 throughout the country wherever the peach is grown, as it is 

 an old European insect which was first noticed in the United 

 States in 1860. On the Pacific Coast the over-wintering larva? 

 bore into the tender shoots in early spring and during the summer 

 bore into the fruit, particularly the later varieties. Prune, nec- 

 tarine, apricot, almond, and pear are also injured. 



The adult moth is a dark-gray color, with fore-wings expanding 

 about one-half inch and marked with darker spots. The full 

 grown larva is about one-half inch long, of a dull reddish-brown 

 color with dark brown or blackish head. 



Life History. " The insect passes the winter as a very small 



* Anarsia lineatetta Zell. Family Gelechiidce. See W. T. Clarke, Bulletin 

 144, Cal, Agr. Exp. Sta.; C. L. Marlatt, Bulletin 10, n. s., Div. Ent., U. S. 

 Dept. Agr.; A. L. Quaintance, Yearbook U. S. Dept. Agr., 1905, p. 344. 



