20 B. C. ENTOMOLOGICAL PROCEEDINGS, HUL 



These hatch in due course, and the larvae penetrate the body of the 

 caterpillar, which is quickly destroyed. 



The "CUnocampa americana" attaclcs various deciduous trees, but the 

 apple and wild crab-apple seem to be preferred, so that taking the two 

 most destructive insects with which we have to contend in British 

 Columbia, it will be seen that the wild-crab, to which reference was 

 made when I was dealing with the Oyster Shell Scale, constitutes a real 

 danger, which seriously interferes with the eradication of this destructive 

 pest. 



It would be a relief to not only the fruit-growers, but those who 

 have shade-trees and plants, which are liable to be attacked by the Tent 

 Caterpillars, if the wild crabs throughout the Province were destroyed. 



East of the Cascade Range the Tent Caterpillar is not nearly as 

 common as it is on the Coast. I think this is largely owing to the fact 

 that great care has been taken in the inspection of nursery stock, for it is 

 practically impossible for a tree or plant having an egg mass of the Tent 

 Caterpillar to pass the rigid inspection, vv^hich has been in force during 

 the last twenty years. 



This is also true in regard to the Oyster Shell Scale. No tree or 

 plant infected with either pest is permitted to pass inspection. 



The next most destructive pests are the Aphides Family, which 

 include the Woolly Aphis, "Schizoneura lan'igera," Plum Aphis, Green 

 Aphis of the apple, and Black Aphis of the peach and cherry. 



These are all sucking insects, and more or less in evidence every- 

 where that fruit is grown. We have also the Hop Aphis, which is very 

 destructive some seasons, but which is easily controlled by using contact 

 sprays. I find by experience that the "Black Leaf 40," to which refer- 

 ence has already been made, has given by far the best results. 



I have the most flattering testimonials from various sections of the 

 Province, stating that nothing that has been used hitherto has proved 

 so effective. 



I may say it has also proved a very excellent remedy against the 

 aphis which attack cabbage, turnips and other root crops. A test was 

 made with the "Black Leaf 40" at the Government Old Men's Home, 

 in Kamloops, this year, and both superintendents of the Gaol and Old 

 Men's Home have reported that nothing they have ever tried has given 

 such good results, and that their garden crops were saved this year by 

 the use of this very valuable insecticide. 



I refer to this for the guidance of those who may be interested in 

 protecting their gardens and bushes. 



The "Pulvineaia occidentalis" has been more or less in evidence on 

 the Coast during the present year. It is not a very destructive pest, and 

 yet a bush may be greatly injured by its attacks. I have seen severa' 



