LEGUMINOUS CROPS. 



21 



Cure.—(1) As the beetles retire to the ground at night, 

 treat the ground with lime, gas-lime, soot, or a mixture of 

 lime and soot. These substances destroy the beetles. (2) 

 Paraffin oil mixed with soil has also proved an effective 

 remedy against the ravages of these beetles. 



The Silver Y Moth {Plusia gamma). The cater- 

 pillars of this moth, which are of a green colour, feed upon 



Fig. 8. — SiEiPED Pea Weetil {Sitona lineata). 



A. Pea Weevil (natural size) deTonring leaves of pea-plant. 



B. Pea Weevil (enlarged). 



the leaves of peas, beans, sugar-beets, linseed, and hemp. 

 Towards the end of the caterpillar stage, each caterpillar 

 spins a cocoon on a leaf of the infested plant, and in it 

 changes into a chrysalis. Plusia gamma, in any one of 

 the three stage of its life, rarely does much damage to crops 

 in Great Britain, although, according to Dr. Lindeman, 



