Elements of biology; a practical Elements of biology; a practical text-book correlating botany, zoology, and human physiology elementsofbiolog00hunt Year: [c1907] 238 ZOOLOGY at least twenty-five thousand cocoons to form the material for a single dress. Harm done by Moth Larvag. — From the economic standpoint the harm done by the moths far outweighs the good they may have done. Although they pol- linate flowers to some extent, still the butterflies are greater bearers of pollen. Great dam- age is done annually by the larvae of moths. Massachusetts has spent some $3,000,000 in trying to exterm
Elements of biology; a practical Elements of biology; a practical text-book correlating botany, zoology, and human physiology elementsofbiolog00hunt Year: [c1907] 238 ZOOLOGY at least twenty-five thousand cocoons to form the material for a single dress. Harm done by Moth Larvag. — From the economic standpoint the harm done by the moths far outweighs the good they may have done. Although they pol- linate flowers to some extent, still the butterflies are greater bearers of pollen. Great dam- age is done annually by the larvae of moths. Massachusetts has spent some $3,000,000 in trying to exterminate the im- ported gypsy moth. The cod- ling moth, which bores into apples and pears, is estimated to ruin yearly $3,000,000 worth of fruit in New York. Among these pests, the most important to the dweller in a large city is the tussock moth which de- stroys our shade trees. The caterpillar may easily be recognized i '^, %%%%%%%%%%%%%%%% L ' '^ s,^ Female tussock moth which has just emerged from the cocoon at the left upon which it has deposited over two hundred eggs. From photograph, slightly enlarged, by Davison. Larva of tussock moth. From photograph, twice natural size, by Davisono
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