GRASSHOPPERS ON SUGAR BEETS AND TRUCK CROPS. 15 
spaces examined may be a yard square. An average over a large 
area of one capsule of eggs per square yard means a severe outbreak 
the next year. From each capsule that remains sound 25 to 150 
young may hatch. Spots well suited to ege laying are often more 
heavily infested than this. 
When the eggs have been located, measures for their destruction 
can be applied. These should be delayed until the parent grass- 
hoppers die, in order that no more eggs may be deposited. If the 
egg-infested land requires plowing for the next year’s crop, no other 
treatment need be given. When plowing is not required, the harrow 
or disk may be used. Suitable treatment should be given the edges 
of fields, ditch banks, turn rows, abandoned fields, roadsides, or any 
other places where eggs are to be found. Scattering clumps of egg- 
infested grasses should be uprooted, even when the surrounding land 
receives no treatment. 
Where the eggs can not be destroyed, the infested area should be 
watched and the young killed when they hatch in the spring. On 
waste land, pastures, and sod that can be burned over, fire is the best 
means of destroying them. If it can not be used, and young chicks 
or turkeys are available, these should be put into a portable henhouse 
and located between the infested land and any field into which the 
young grasshoppers are likely to go. The flock can be moved to a 
fresh location as the land near by is cleared of ‘‘hoppers.’’ In this 
way the grasshoppers can be worked back from the field and the 
danger of inyasion lessened. If the infested area is large, the poultry 
may be brought almost to maturity with a comparatively small out- 
lay for feed and with a constantly decreasing number of grasshoppers 
that will be left to deposit eggs in the fall. 
There should be no delay when grasshoppers hatch in great numbers 
over a large area, for the expense and difficulty of combating them 
increase rapidly as they grow larger. If no other means of control 
are ready for use at once, the poisoned bait or the hopperdozer must 
be relied upon. The time available for the work, the cost of appli- 
cation, and perhaps other factors must be considered in choosing 
between the two methods. The bait is cheaper, less time is required 
_to treat land with it than with the hopperdozer, and it can be pre- 
pared in any quantity. With a 2-gallon pail of bait one can sow in 
fields and in locations the character of which makes the use of the 
hopperdozer impossible. Consequently this method is most fre- 
quently chosen. 
If grasshoppers have already invaded a beet field or garden, the 
bait must be applied all over it. Several applications at intervals 
of two days are sometimes necessary to check the injury. The 
infested land from which the grasshoppers are coming should also be 
treated vigorously with the most suitable method. Around the 
