150 



Flat-Hkadad Borer (Chnjaohothiis fcmnrata. Fab.). 



(Fifi. .50.) 

 (a) larva: (6) beetle: (c) head of male; (d) pupa. Enlarged. 



This insect also attacks tlie truiilv of tlie apple tree, but lays its eggs 

 liiglier up the tree than the preceding one. Tlie hiira is a pale yellow, an 

 inch long, and has a well-marked flat liead, much wider than the body. It is 

 sometimes found even in the limbs, and is not so long in developing as the 

 round-headed borer. It cuts flat channels in the sapwood, and sometimes 

 girdles the tree. Castings and discoloured bark indicate its jiresence. It 

 finally bores into the solid wood, and becomes a ])upa for about two weeks, 

 and then emerges as an imago about half an inch long, somewhat flat, and of 

 a greenish-black colour, with three raised lines on each wing-cover. The legs 

 and under sides of the b(xly present a coppery lustre. 



Rvmcilifs. — 1. Examine the trees in autumn, and where the sawdust-like 

 castings indicate the presence of the " borer," a stiff wire ma.v be pushed in 

 and the larva killed, or sometimes the larva can be cut out with a knife. 



2. About the beginning of June apply the following mixture to the trunk 

 of the tree; one pound of hard soap, or one quart of soft, in two gallons of 

 water; heat to boiling and add one pint crude carl)olic acid; make a second 

 application in three weeks. This can be well done b.v using an old scrubbing- 

 brush to rub it in. — Ontario Bulletin on Pests. 



Teach Tree-Borer {Hanniiioidea e.iitinsa). 



The peach tree-borer passes through four different stages during life. 



It begins as an egg, deposited on the bark of the trunks of the trees from 

 si.K to eighteen inches above the ground. From the egg there hatches, in a 

 week or ten days, a minute larva, the young borer, which at once works its 

 way into a crevice of the bark, and soon begins feeding on the inner layers of 

 the bark. 



It continues to feed in tliis nninner, graduall.v enlarging its burrow under 

 the bark, until winter sets in, wlien it stops feeding and liil)ernates. The 

 winter is always .spent as a larva or borer; a few of them may be nearly full- 

 grown, but most of them will be considerabl.v less than half-grown at this time. 



In tlie spring they break their winter's fast and grow rapidl.v for a month 

 or more, most of them getting their full growth in June. They then leave their 

 burrows and spin about themselves brown cocoons, at the base of the trees. 



