QUINCE INSECTS 6-] 



gin to feed which will be during the first two weeks 

 of July, usually, with Bordeaux 3-3-50 or lime- 

 sulphur 1-40 with 3 pounds of arsenate of lead 

 added to each 50 gallons of liquid; make a second 

 application in about a week or ten days; collect all 

 drops and culls, take them from the orchard, and 

 destroy them. 



The bud moth — This is also quite a pest of 

 quinces ; discussed under apple pests. 



The pear slug — This occurs on quince trees but 

 may be controlled as recommended under pear pests. 



The codling moth — This common apple pest is 

 often quite a serious pest in quinces; it can doubt- 

 less be controlled as on apples. 



The round-headed apple-borer — This is seri- 

 ously injurious to quince trees but is subject to the 

 same methods of control as on the apple. 



CHERRY PESTS 



As many as 46 different pests may attack the 

 cherry tree. 



The black cherry louse ^^ {Myziis cerasi) 

 Order — Hemiptera 



This is an old European pest and has been here 

 for at least 50 years ; it is primarily a pest of sweet 

 cherries and although in some localities it may at- 

 tack sour cherries it does not seem to seriously 

 injure them; the eggs are laid on the small branches 

 about the buds; the young lice appear about the 

 time the buds open on sprouts and lower limbs of 

 trees ; the lice increase all through June until some- 

 times they become very abundant ; then they nearly 

 all disappear, most of them going to the wdld pep- 

 per-grass (Lepidiuni apetahim), only scattered 



56 Gillette— Canad. Ent., Vol. 50, p. 241. 



