26 



REPORT ON INJURIOUS INSECTS FOR 1904. 



The caterpillars, chrysalids, and butterflies are so well- 

 known, no description is necessary (Figs. X and XI). 



PREVENTIVE AND REMEDIAL MEASURES. 



In gardens much good may be done by hand-picking the 

 caterpillars, further a careful search should be made for the 

 chrysalids, these may be found under the copings of walls, eaves, 



FIG. X. LARGE WHITE CABBAGE BUTTERFLY. 



T. Female butterfly. 2. Eggs. 3. Larva. 4. Pupa. 5 and 6. Parasitic 

 Ichneumon -fly (Pteromalus brassicae], natural size and magnified. 



: 



FIG. XI. SMALL WHITE CABBAGE BUTTERFLY. 

 i. Female butterfly. 2. Larva. 3. Pupa. 



and palings. In outhouses they are specially numerous, and 

 it is well to brush the walls and give all such places a thorough 

 good clean out in the winter. 



Two or three days rain will kill thousands of the cater- 

 pillars, in its absence a good drenching of water with a garden 

 hose will do much good. 



