ORANGES, LEMONS, AND LIMESENEMIES. 57 



no trace of scale or black fungus. If the scale is kept clown there will be no black 

 fungus ; therefore lose no opportunity of combating the scale with the soapy solution. 

 "Washes are speedily applied, and generally efficacious, such as Coates's, Vol. I., 

 page 260; resin compound and petroleum mixture, both in Yol. I., page 261; and 

 these may be applied according to the instructions whilst the trees are in growth. 



White scale (Aspidiotus auranti) and Oleander scale (A. neri) also infest the 

 Citrus family. The first is about y^th inch in diameter, yellowish in the centre, and 

 light brown at the margin. It causes the trees to have a sickly appearance, the 

 leaves being blotched with yellow. The Oleander scale runs riot on lemon trees, 

 sometimes almost covering the fruit. Methylated spirits will destroy it, but must be 

 diluted with an equal quantity of water when applied with a sponge to the leaves or 

 with a brush to the bark. This should be done in winter, following with the other 

 remedies advised for Lecanium. 



Mealy bug is sometimes found on orange trees. It is evidence of neglect either in 

 selecting the trees or subsequent management. u Touch up " every part infested with 

 the least possible quantity of spirits of wine, which, with syringing, will rid the trees 

 of the parasite. Red spider may be prevented by properly syringing the trees, 

 maintaining a genial atmosphere, and duly supplying the roots with water and 

 nourishment. 



VOL. III. 



