10 Oct., 1916.] Insect Pests of the Gardens. 



609 



largest of the hard-shelled scales, and it is spreading in Victoria, and 

 is doing considerable damage, especially to young vines. There is no 

 doubt that this scale is on the increase ; but, as it is so large, it is 

 easily seen, and steps can be at once taken for its eradication. If the 

 scales are removed, hundreds of minute eggs are seen; when these hatch, 

 the young at once commence to suck the juices from the plants, causing 



Fig. 25. — The Gum Scale (Eriococcus coriaceus, Maskell), 



Fig. 26. — The Vine Scale (Lccaniitm berhcridit, Sch.), 



them to become a sickly colour, and often shrivel up. A good ])lan is 

 to rub the adult scabs off the affected i)lauts with a scrubbing brush, 

 the eggs will then fall to the ground and perish, or be carried away 

 by ants and other insects. Scrape off all old, loose bark from vines, as 

 these insects hide under it. Unfortunately, it Ikis r<><t'iit ly been found 



12091.— B 



