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very desirable that hogs should be pastured for a considerable 
time on meadows or pastures before plowing for corn, and that 
they should also be given the run of the field while it is being 
plowed. This measure will be practically useless, however, under 
ordinary circumstances, if resorted to later than October or 
earlier than April, as in the interval between these months the 
grubs will be beyond the reach of pigs, buried in their winter 
quarters. 
Further, I do not, myself, in the least doubt the great profit 
to the average farmer of providing for the collection of white 
grubs after the plow, by hand, in soil where they are particu¬ 
larly abundant, especially where any kind of cheap labor may 
be had. In estimating the value of this method, we should bear 
in mind the fact that a small number of grubs may do a great 
amount of harm to young corn on comparatively clean ground, 
because of the small amount of vegetation offered to them as 
food while the corn is young. 
Next, we should take into account the relatively small damage 
done to clover by the grubs, and the further fact that we have 
no present evidence that the eggs of the June beetle are ever 
laid in clover land. It is consequently a good practice, so far 
as grub injury is concerned, to insert clover (sown perhaps with 
oats) between grass and corn in the rotation; and this is espe¬ 
cially to be advised on light soils, not perfectly adapted to corn. 
Here it will have the effect not only to eliminate the grubs in 
part, but also to diminish the damage to the following crops 
of corn by increasing the strength of the land, thus helping the 
corn plant to withstand such loss of roots as it may neverthe¬ 
less be subjected to. In this connection it need hardly be said 
that a generous treatment of the soil, by heavy fertilization, 
thorough cultivation, and the like, will diminish loss to corn by 
enabling plants attacked to throw out new roots more vigor¬ 
ously to take the place of those eaten by the grubs. Indeed, by 
some most intelligent and successful farmers, high fertilizing 
with frequent rotation is regarded as the essential and suffi¬ 
cient defense against these insects. 
The management of corn on lands containing grubs should 
also be directed especially to the protection of the plant from 
drouth, as, in the presence of these insects, dry weather takes a 
double effect by retarding root growth under circumstances 
which require it to be vigorously stimulated instead. 
To prevent the laying of the eggs of the June beetle in the 
corn field in May or June, it is desirable that the ground should 
be kept practically free from weeds at that time, as it is well 
known that a surface growth of vegetation is a strong attrac¬ 
tion to these insects searching for places suitable for the support 
of the young. Some of our more recent observations show 
that the beetles are likely to deposit their eggs in the field 
from which they themselves have emerged, provided that it of¬ 
fers them suitable conditions—a fact which makes it clearly 
