166 



PESTS OF GARDEN AND FIELD CROPS 



Fig. 183. — Cocoon of the Lesser Clover 

 Leaf-weevil in clover head. Enlarged. 

 Original. 



Large numbers of the grubs 

 often die from a fungous dis- 

 ease, and may be seen coiled 

 around the stems near the top. 

 Cattle eating clover on which 

 many of these dead larvse 

 are present, are apt to be 

 mildly poisoned. 



The Lesser Clover Leaf-we evil 



(Phytonomus nigrirostis Fab.) 



Small holes are eaten in the 

 young and tender leaves of 

 clover, and later, at the bloom- 

 ing period, the inner parts of 

 the heads are destroyed by a 



tiny grub, the immature stage of a small, greenish snout beetle. 



-Fig. 184. — Clover leaves showing characteristic work of 

 the Lesser Clover Leaf-weevil. Original. 



The beetle spends the winter in rubbish or other shelter. Emergence 

 begins with warm weather, and egg-laying continues for several weeks. 

 There is only one generation annually. 



No direct remedial measures are known. 



