LIFE HISTORY AND CONTROL OF HOP FLEA-BEETLE. 
51 
greatly simplified the operation and has made banding much more 
practical. 
Since the beetles can not crawl over the bands the vines are per- 
fectly protected. In case the beetles are numerous when the vines 
are first trained, the tanglefoot may be applied at that time, or if 
the beetles are not troublesome during the first generation it may be 
applied after the vines are stripped so it will be ready for the second 
brood. In that case, however, the poles must be banded as well as 
the vines, for the beetles have a habit of climbing the poles and crawl- 
ing along the wires, where they do much 
damage to the hop cones. 
Effect upon the beetles. — The tangle- 
foot bands not only keep the beetles off 
of the Amines but a large number of them 
are caught in it. In places where the 
beetles were very thick, hundreds of 
them became entangled in it and in some 
instances so many got caught that they 
formed a bridge over which the others 
crawled. Beside being killed by coming 
in contact with the tanglefoot, many are 
starved to death by being kept away 
from the hop-leaves. This was espe- 
cially true in the yards that were kept 
well cultivated and all suckers cut away. 
If the weeds are not allowed to grow in 
the yards and the vines and poles are 
well banded, most of the beetles will 
either be caught in the bands or starved 
to death, the remainder going into win- 
ter quarters in such poor condition that 
there will be few beetles the next spring. 
Application. — It is necessary to get 
the tanglefoot well into the spaces be- 
tween the two vines, the simplest way to accomplish this being 
to apply it with the hands. A section about 6 inches long should 
be coated with the tanglefoot, care being taken that no parts are 
missed and that no leaves are left to form a bridge across it. A 
strip around each pole about 3 feet from the ground should be 
trimmed off with an ax, so that the tanglefoot may be applied easily. 
A small paddle about 2 inches wide is the best thing with which to 
apply the tanglefoot to the poles, for only a narrow band is needed 
there. The amount of tanglefoot used per acre varies according to 
the number of poles and vines. In one yard where the trellis poles 
Fig. 14. — Banded hop vine, show- 
ing condition of leaves above 
and below the band. (Original.) 
