62 NEW YORK STATE MUSEUM 
hoed crop must be planted on such land, use an extra amount of 
seed and feed liberally, supplementing this with good cultivation in 
order to enable the crop to withstand successfully the probable 
injury : 
There is no practical method of destroying white grubs in the 
soil, aside possibly from giving pigs the run of the field prior to 
planting time. Experience has shown the practicability, in the 
case of recently set strawberry fields, of digging out and destroy- 
ing the grubs working at the base of individual plants. This 
latter is somewhat costly and is practical only after the injury has 
developed to such an extent that one can detect affected plants. 
It can be advised only in cases where it is impractical to avoid 
such conditions. 
Numerous white grubs in a lawn or in a garden where values 
are relatively high can be destroyed by the use of a dilute kerosene 
emulsion, say I part of the standard formula to g parts of water. 
A liberal amount of the spray should be applied and then followed 
by a thorough soaking with a garden hose in order to wash the 
emulsion down, bring it into contact with the grubs and eventually 
carry it beyond the reach of most of the root fibers. Carbon bi- 
sulphid has also been advised for the destruction of grubs about 
plants. This material, if employed, should be used with care and 
be preceded by a few experiments to determine the possibilities 
under given conditions, since the danger of injuring vegetation 
would depend in considerable measure upon the texture of the 
soil and the amount of moisture present. 
