Elements of agriculture, southern and Elements of agriculture, southern and western elementsofagricu00welb Year: 1908 126 ELEMENTS OF AGRICULTURE \A'ith an enemy of this kind, we try to find some brave little ally that will fight for us. We can keep up, in some cases at least, a sort of balance of power among our insect enemies. Real insects have six legs and have their bodies in three divisions — the head, the thorax, and the abdomen. Grass- hoppers, bees, wasps, ants, etc., are typical insects. ^l-r^'^J^^^^^^^-r-^:^ 'Ji Fifi. 41. — Spkaying Fruit Trees Classes of Insects. — Insects may b
Elements of agriculture, southern and Elements of agriculture, southern and western elementsofagricu00welb Year: 1908 126 ELEMENTS OF AGRICULTURE \A'ith an enemy of this kind, we try to find some brave little ally that will fight for us. We can keep up, in some cases at least, a sort of balance of power among our insect enemies. Real insects have six legs and have their bodies in three divisions — the head, the thorax, and the abdomen. Grass- hoppers, bees, wasps, ants, etc., are typical insects. ^l-r^'^J^^^^^^^-r-^:^ 'Ji Fifi. 41. — Spkaying Fruit Trees Classes of Insects. — Insects may be divided into two large classes. One class, such as the grasshopper, the leaf worm, and the potato bug, for instance, bite and eat their food. These can be killed by sprinkling the plant with a very weak solution of Paris green, sa}^ a heaping tea- spoonful to a bucket of water. In eating the leaves, the insect will get enough of the poison to cause its death. The other class of insects are those that have tubes for inserting into the tissues of the plant and sucking the juices. Poisons will not kill these because they get none of them. The only way to destroy the sucking insects is
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