WHITE GRUBS 



211 



(See 



from this insect alone is something like fifty million dollars, 

 page 223, under, cotton insects.) 



Control. Land should be plowed in the late fall in order that 

 the pupae may be turned up to be subjected to the variations in 

 weather, and where it is practicable and hi line with good farming 

 the land should be harrowed. The early plantings of corn gener- 

 ally escape injury, since corn passes the silking stage before the 

 moths of the second brood appear. Caterpillars of the first brood 

 may be killed by applying a soray of arsenate of lead two pounds 



FIG. 225. May beetle or "June bug"; larva or white grub pupa and adult. (After Linville 



and Kelly.) 



to fifty gallons of water. This will not injure the plant tissue. 

 Better still, powdered lead arsenate may be dusted into the funnel 

 of the young plants. Spraying the silk with a mild poison is now 

 being tried with some success in killing the young caterpillars of 

 the second and third broods. Dusting the young silk with poison 

 is sometimes tried successfully. 



White Grubs. These destructive grubs sometimes feed on the 

 roots of corn. For the life history and an account of injury, see 

 page 135, under insect pests of berries and grapes. 



Sod land is the natural home of this insect. It should be 

 plowed early in the fall to destroy the pupae and tender adults. 



