WIREWORMS (eit) and White 
Grubs (right) feed on the roots of 
plants. These pests are very destruc- 
tive to gardens in some areas. No 
means of control on the growing 
crop is known, as any soil treatment 
sufficient to kill the worms will injure 
the plants. Some benefits can be 
obtained by crushing all the pests 
that are seen when the soil is being 
worked. When wireworms or white 
grubs are abundant, the soil should 
be treated before the crop is planted. 
Crude naphthalene flakes, used at 
the rate of 1% pounds to 100 square 
feet, worked into the soil to give 
uniform distribution to a depth of 
about 10 inches, will give control. 
Good distribution can be had by 
spreading about half the material 
evenly over the soil just before spad- 
ing or plowing and the other half 
immediately after, while the ground 
is still rough. The naphthalene 
should be worked into the soil 
promptly after it is applied. Do not 
plant until 7 days after treatment. 
To do so may injure the crop. Avoid 
planting carrots, onions, and other 
root crops on soil known to be 
infested. 
