. New elementary agriculture for rural and graded schools; an elementary text book dealing with the plants, insects, birds, weather, and animals of the farm . g such rascals as the cucumber-beetles, thecorn-root worm, the willow^ and the cottonwood beetles,the sweet-potato-beetles,fiea-beetles, and others. Feed-ing as they do on many of our wild plants, it happensthat every once in a while we learn of a new kincj chang-ing to one of the cultivated plants. When this is donewe have one more insect enemy to fight. Some of these leaf-beetles are protected from theirenemies by being furnished with
. New elementary agriculture for rural and graded schools; an elementary text book dealing with the plants, insects, birds, weather, and animals of the farm . g such rascals as the cucumber-beetles, thecorn-root worm, the willow^ and the cottonwood beetles,the sweet-potato-beetles,fiea-beetles, and others. Feed-ing as they do on many of our wild plants, it happensthat every once in a while we learn of a new kincj chang-ing to one of the cultivated plants. When this is donewe have one more insect enemy to fight. Some of these leaf-beetles are protected from theirenemies by being furnished with arrangements for mak-ing strong odors, or by having their bodies covered withdistasteful substances. Others have the habit of livingin little cases which the grubs make for themselves, and S7- Wire-worm orclick beetle. HARMFUL lNSEc:rS S5 still others drop to the ground when disturbed, wherethey lie as if dead. Many of these leaf-beetles live overwinter hidden away under old rubbish, cow-chips, stones,and pieces of wood, where we may find them on anypleasant day if we only take the pains to look. Earlyin the spring they leave these winter quarters, and. Fig. 38. Leaf-beetles. fly to the plants on which their young are to are two or three broods or sets of young of manyforms during the spring, summer, and fall. Many ofthe leaf-beetles are eaten by their enemies while theyare still in the egg state. The lady-birds, spoken of onanother page, do much of this good work. Boring Beetles.— Every boy goes into the woodssometime during the year; or if he does not, he certainlymust chop wood. In either case he soon learns that thetrunk, branches, and limbs of trees are bored into byinsects. Sometimes he even finds them in their he has learned for himself that the worms ofdifferent shapes and sizes are the young of beetles—short-horned or long-horned. But the girls who stayat home and cant chop wood must be told about themhere. These wood-boring insects do
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectagriculture, bookyear
