Economic entomology for the farmer Economic entomology for the economicentomolo00smit_0 Year: 1896 THE INSECT WORLD. 261 tance up or down the cane or completely around it, for which reason it has been called the '' blackberry crown-borer.'' Signs of its presence are the sudden wilting and rapid death of new shoots, and it comes to maturity in early September of the second year of its life, forming a pupa in the stalk itself. The resulting moth, Beinbecia marginata, is black, very little marked with yellow, and the only satisfactory remedy is cutting out and destroying the larva as so
Economic entomology for the farmer Economic entomology for the economicentomolo00smit_0 Year: 1896 THE INSECT WORLD. 261 tance up or down the cane or completely around it, for which reason it has been called the '' blackberry crown-borer.'' Signs of its presence are the sudden wilting and rapid death of new shoots, and it comes to maturity in early September of the second year of its life, forming a pupa in the stalk itself. The resulting moth, Beinbecia marginata, is black, very little marked with yellow, and the only satisfactory remedy is cutting out and destroying the larva as soon as its presence is indicated by the wilting leaves. Perhaps the best known of all belonging to this series is the 'peach-borer,' Sannijia exitiosa. This is the pest of peach- growers all over the country, and the larvae live between bark and wood a little below the surface of the ground in a mass of gum and woody material. They first make their appearance after midsummer, and become about three- fourths of an inch long before winter sets in. In spring they resume feed- ing, attaining a length of a little more than an inch, then spin a cocoon of silk and bits of chips covered with gum, and change to a pupa. In this stage they remain a few days and then emerge as moths. The sexes are very unlike, the males black, with narrowly yel- low-banded abdomen, and entirely transparent wings ; the females much larger, the fore-wings almost blackish brown and entirely covered with scales, the abdomen black, with a broad orange band at about the middle. The eggs are laid on the bark near the surface of the ground, and the larvae hatch after midsummer in time to do con- The peach-borer, Sanytina exitiosa; male above, female below ; both enlarged.
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