22 REPORT OX INJURIOUS INSECTS FOR 1907. 



Liming and deep ploughing have also been recommended ; and 

 the removal of all rough herbage which affords a winter shelter. 



THE BROWN SCALE. 



Lecanium hemisphcricum, Targ.-Tozz. 



On various plants this scale has been received from many corres- 

 pondents during 1907. On a species of palm it was particularly 

 prevalent ; as also on Aspidhim sp. 



It is a very prolific species and often does serious damage to plants 

 under glass. Fortunately it is sufficiently large to attract notice. 



In the above-mentioned case, where it was found on palms, it was 

 eradicated by the use of a quarter of a pound of soft soap mixed with 

 a gallon and a half of boiling water, and a gill of paraffin. In other 

 cases I have used the Vi Fluid, diluted i part to 150 parts of water. 



THE BROWN CURRANT SCALE. 



Lecanium persicae (Geoff.) var. coryli (Linn.). 



Specimens of this Scale have been examined on Gooseberry 

 plants, and both Black and Red Currants. 



The Gooseberry twigs, which were forwarded by a Worcestershire 

 correspondent, were very badly attacked. The bushes had been 

 neglected for some time past and only the diminished crop of fruit 

 served to draw the grower's attention to the fact that something was 

 wrong. 



In December the bushes were sprayed with the Vi Fluid, and 

 already the stems are assuming a clean and healthy appearance, free 

 from the pest. 



FIG. 6. THE COMMON MEALY BUG. 

 Two females in different stages of development. 



(From a photograph taken by Mr. J. G. Blakey, of Redditch.) 



