The control of forest insects: general considerations
control effective against a few types of insects, like caterpillars
Cotton Batting a strip of cotton batting is placed around the tree trunk at a
convenient height, and the lower edge tied tightly against the trunk.
Mechanical Methods
Wire Screens inverted funnels made of wire screening or tin may be tacked
about the tree trunk.
Sticky Bands the most effective barriers that can be used.
Chemical Methods
The Stomachpoison Sprays Poison is taken into the stomach of insects
with their food.
The Contact Sprays chemicals which have a caustic or clogging effect on
the insects.
Spraying Forest Trees various chemical insect poisons are sprayed by
special pumps.
Airplane Dusting problably the most effective method for treating defoliators.
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