STRAWBERRY INSECTS 393 



Graphops puhescens Melsheimer 



This beetle is about J inch in length, of a metallic cop- 

 pery color and is sparsely clothed with a grayish pubescence. 

 The beetles are most abundant and deposit eggs from June 

 till August. The grubs become mature before cold weather 

 and construct earthen cells in which they pass the winter 

 in the larval condition. Pupation occurs in May and June 

 and the beetles begin to emerge in early June. Beetles are 

 sometimes taken as early as March, but those probably hiber- 

 nated as adults. There is only one brood a year. 



Colaspis hrunnea Fabricius 



This is also occasionally a grape pest. The grubs are some- 

 times found feeding on the roots of the strawberry. 



Treatment for root-worms. 



The losses occasioned by root-worms may be avoided in great 

 measure by adopting a short rotation in growing strawberries. 

 New beds should be planted on uninfested land and should be 

 isolated from the older beds. Injury to the leaves by the beetles 

 may be prevented by thorough spraying with arsenate of lead, 

 4 to 6 pounds in 100 gallons of water, as soon as the beetles 

 appear. Of course this poison could not be used with safety 

 after the fruit has attained much size. 



Reference 

 Forbes, 13th Kept. St. Ent. 111., pp. 150-177. 1884. 



White Grubs 



Lachnoster7ia (several species) 



White grubs are without doubt the most troublesome and 

 destructive pests with which the strawberry grower has to con- 

 tend. These large, thick-bodied, strongly curved, dirty-white 



