140 INSECTS INFESTING THE PLUM TREE. 



The winged lice have the head and thorax black, usually 

 with a green ring around the neck ; the abdomen is colored 

 similar to that of the wingless lice, but is darker. 



This species is very destructive to the plum and prune. 



Remedies. — When the trees are in leaf, use Xo. 3 or 4, or 

 No. 5 or 7; when dormant, spray with Xo. 11 or 12, as 

 directed; or Xo. 13 — five pounds to six gallons of water. 



CHAPTER LXXIX. 



The Plum Leaf-hopper. 



( Byth oscoj) (/.s- rl it ell a rius. — Say. ) 



Order, He.miptkha ; ) i- ■^ n 



^. , ' 1 Tj r amilv, C EcRopiD.^. 



i>ui)-order. Ho.Moi'TEKA ; ) 



[ Puncturing the fruit-stems of plums and extracting the sap ; 

 a small cylindrical, slightly tapering leaf-hopper, about two 

 and a half lines long ; l)lack or dark brown, with a bright, 

 sulphur-yellow spot on the middle of its back and a pale 

 yellow band in front of this; the head pale yellow, with two 

 black dots on the forehead. — Fitch.] 



Remedies. — When the tree is dormant, spray with Xo. 1 1 or 

 12, as directed ; or with Xo. 13 — five pounds to six gallons of 

 water. For Summer wash, use Xos. 3, 4, 5, or 7 ; those mixed 

 with suli)iiui- are preferable. 



CHAPTER LXXX. 



The Plum Curculio. 



(ConotrachelKs nenuphar. — Ht-rbst.) 



Order, Colkopter.\ ; Family, Ctkcuijonid.e. 



[Living in plums, cherries, peaches, pears, nectarines, apri- 

 cots, quinces and apples, a yellowish-white footless grub 

 which undergoes its transformations in the earth.] 



