Wireworms. Grubs. Grasshoppers 433 



Practice a short rotation of crops for wireworms, in 

 which the land is not left in sod for more than two or at 

 most three years. Do not plant vegetable crops susceptible 

 to injury in land known to be-infested. Peas and buck- 

 wheat may be used as intermediate crops between sod and 

 vegetables. In the garden, poison baits are sometimes used 

 for killing the wireworms. Dip small bunches of clover in 

 paris green water and place them in the field covered by 

 pieces of boards. Sweetened cornmeal dough poisoned 

 with paris green may be used as a bait. The bait should 

 be distribute^ after the ground is fitted out before the crop 

 is planted. 



White grubs. 



These are large fat white curved grubs found in land 

 recently in sod. The parent insect is a large brown June 

 beetle (the familiar " June-bug "). The grubs feed on the 

 roots of grasses and thrive in old sod land. When such 

 knd is broken up and planted to vegetable crops, the grubs 

 concentrate their feeding, often causing great damage. 



For the white grub, practice a short rotation of crops 

 in which the land is not left in sod more than two or at 

 the most three years. Do not plant vegetable crops on 

 land known to be infested. As an intermediate crop be- 

 tween sod and vegetables, buckwheat, alfalfa, clover, and 

 other leguminous crops may be raised. Old strawberry 

 beds are likely to be badly infested and should be treated 

 the same as sod land. 



Grasshoppers. 



Many vegetable crops are liable to injury by grasshop- 

 pers. Use the poisoned bait described for cutworms. 



