72 



THE EEPOET OF THE 



No. 36 



Dr. Hewitt : I think Mr. O'Kane of Xew Hampshire found that the average 

 depth of pupation was one and a half to two inches.* It is an important point 

 to decide at what depth the larvae usually pupate in connection with any system 

 of cultivation as a means of control. The insect I am most familiar with, namely 

 the house-fly, can emerge in sand from a depth of five to six feet, and I have no 

 doubt that the Apple Maggot can emerge from a greater depth than eight inches 

 in a light soil; a great deal depends on the character of the soil. 



Mr. Eoss : These larvae had bored in sandy soil. The larvae of course pupated 

 differently. Under fallen fruit and in the fallen fruit itself, especially in the. 

 case of crab-apples. Of course the percentage of mortality of pupae is very high. 



Dr. Hp:witt : Have any pupated in merchantable fruit ? 



Mr. Eoss: No. 



Mr. Swaine: How is the fruit destroyed? Is it sufficient to cover it with 

 lime and earth. 



Mr. Eoss: I did bury some with lime, and twenty per cent, came through. 



Mr. Swaine: I know of a certain ]\Ir. Shepherd, who boiled the infested 

 fruit and fed it to stock. 



Mr. Eoss: I must mention that in the evaporators there are quantities of 

 infested fruit used. 



INSECTS OF QUEBEC FOE THE YEAE 1912. 

 C. E. Fetch, Division of Entomology, Ottawa. 



Not arriving until the latter part of July at the Field Laboratory, Covey 

 Hill, Quebec, my report will be somewhat faulty. 



The Tent-caterpillars were very bad this year; many unsprayed orchards were 

 entirely defoliated. From observations, I believe that the Forest Tent (Malacosoma 

 disstria) is worse than the Apple Tent (Malacosoma americana). Some Hymen- 

 opterous parasites were reared from the pupsP of the Apple-tent. Some twenty 

 bee-hives were entirely destroyed by bee-moths. Both the Larger Wax-Moth 



Fig. 18. 



-Round-headed Apple Tree Borer {Saperda Candida) 

 a, larva; &, pupa; c, adult. 



{Gallena mellonella) and the lesser Wax-Moth (AcJiroia grisella) having been 

 present. Several plum and hirch trees were badly infested with Terrapin 

 Scale {Enlecanium nigrofasciatum) . Oyster Shell Scale (Lepidosaphes ulmi) 

 was very plentiful. Large numbers of the scales were found on the fruit of 

 the apple and the plum, causing it to be greatly mis-shapen in many cases, 



