60 Vict. 



Provinciai, Board of Horticulture. 



37 



This pest must be closely watched, as spraying to be effective should be done when the 

 caterpillars are quite young, before they form protecting cases of the leaves. 



Either Paris green or hellebore can be used effectively against this pest, preferably the 



first-named. {See sprays 8 and 9.) Other varieties of leaf rollers are also reported as 



injuring fruit trees, which are not yet identified. However, the remedies 



Remedies. mentioned should be used to destroy them, always taking care to spray 



before the "protecting cases" ai'e formed. 



This insect {Papilio asterins) is reported from Nanaimo and Victoria ; it feeds upon the 



foliage of vegetables of the parsley family, celery, carrot, parsnip, etc. The caterpillars are 



very handsome and conspicuous in appearance ; the general colour is pale 



Celery green, with a series of transverse bands of black and yellow markings on 



^ '^' their bodies. When irritated they thrust out, from a slit just back of the 



head, a pair of peculiar yellow y-sbaped organs that emit a disagreeable odour, which, no doubt, 



is intended to serve as a protection from enemies. The eggs of this insect are deposited upon 



the undersides of the leaves of its food plants. 



The adult butterfly is a handsome black insect with yellow and blue markings on the 

 wings. When young, the caterpillars may be destroyed by using hellebore or buhach, applied 

 as for the currant worm, but usually hand picking will keep them in check, as they do not 

 occur in great numbers. 



Reported from Enderby, Sooke, Beaver Point, Victoria, Ashcroft, Bonaparte, and James 

 Island, and no doubt common in many other districts. As a preventive measure, the bushes 

 _, t F 't ^^^ ground adjacent should be sprinkled with a mixture of air-slacked lime 



"'"'"^orm"' ^^^ carbolic acid, just at or previous to the time when the parent fly is 



active, pi-obably early in May. One pint of crude carbolic acid to one bushel 

 of lime, well-mixed together, is strong enough for the purpose. This method is useless after 

 the eggs have been deposited, so careful attention is necessary. Affected fruit ripens prema- 

 turely and drops to the ground. These and the rubbish from under the bushes should be 

 gathered and burnt. 



IMPORTED CURRANT WORM or CATERPILLAR FEMALE FLY. 



(Nemaiv^ ventricosus. ) 

 The full-grown worms are about three-fourths of an 



inch long, and are shewn at {a) ; (b) gives the 



position of the black spots upon a magnified joint 



of the body. . 



This well-known pest, which feeds upon the leaves of gooseberry and currant bushes, is 

 reported from most districts of the lower Province. Its parent is a member of the saw-fly family. 



