Elementary agriculture with practical arithmetic elementaryagricu00hatc Year: 1907 INSECTS AND PLANT DISEASES -]-] their eggs, where they lay them, when tlie eggs hatch, and the hke. Parts of an Insect.—Insects are so called because they are 'in sections.' They have a head provided with a pair of feelers, a pair of strong jaws or a suck- ing tube, a body to which are attached three pairs of legs, usually two pairs of wings, and an abdomen. The abdomen is the back portion of the body made up of several ring-like sections and capable of holding a large amount of food. They breathe through litt
Elementary agriculture with practical arithmetic elementaryagricu00hatc Year: 1907 INSECTS AND PLANT DISEASES -]-] their eggs, where they lay them, when tlie eggs hatch, and the hke. Parts of an Insect.—Insects are so called because they are 'in sections.' They have a head provided with a pair of feelers, a pair of strong jaws or a suck- ing tube, a body to which are attached three pairs of legs, usually two pairs of wings, and an abdomen. The abdomen is the back portion of the body made up of several ring-like sections and capable of holding a large amount of food. They breathe through little holes in their sides. THE FOUR STAGES OF INSECT GROWTH. Ei;<<s on leaf, caterpillar, chrysalis or resting stage, full growu insect. The Life of an Insect.—There are ordinarily four stages of insect growth—the tgg stage, the 'grub' or caterpillar stage, the resting stage and the full grown insect. The ngg is laid by a full-grown insect in the ground, on the leaves of plants, in rotten wood, on the bark of trees, or even in the blossoms of plants, or in fruits. This Qgg hatches into what we usually call a
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