10 Jan., 1919.] 



Apple Culture in Victoria. 



35 



use of ordinary red spraying oil, when emulsified in the orchard, as 

 explained. 



Lime sulphur makes a good winter wash. A strong solution is 

 effective against aphis and scale insects, and, hy generally cleaning up 

 the bark, prepares the trees to receive the first spray for black spot. 



Ked Spider {Tetranychus telariu^). 



These destructive little spiders, or red mites, as they are commonly 

 termed, do much damage to apple trees, if permitted, through neglect of 



Plate 186. — A Rokewood tree almost killed by a red oil spray alter the foliage 



had appeared. 



spraying, to infest the foliage. The eggs are comparatively large, and 

 of a reddish-brown colour, and are deposited in great numbers in shel- 

 tered positions on the bark during autumn. The insects hatch out when 

 the weather becomes fairly warm, and as the young leaves expand in 

 the spring. The larva? are at first of a greenish-brown colour, but 

 become a brilliant red when the adult stage is reached. Most of the 



