174 DISEASES OF THE SWEET PEA 



Differing from cut worms, wireworms 

 pass from three to five years in the larvae 

 stage; hence wireworms of different ages 

 may be found in the same place feeding 

 side by side. 



White Grubs. Lachnosterna sp. 

 White grubs are the larvae of May beetles 

 (fig. 40 <a; to /) . They are injurious to a 



FIG. 40. WHITE GRUB OR MAY BEETLE, O BEETLE, h 

 PUPA. C FULL GROWN LARVA OR WHITE GRUB. (AFTER 

 CHITTENDEN.) 



number of cultivated plants, the sweet pea 

 being included. May beetles lay their 

 eggs in sod, in corn fields, or in the garden. 

 The grubs hatch about the middle of July 

 and begin feeding on roots, growing 



