RASPBERRY INSECTS. The canes of rasp berry bushes are attacked injuriously in the United States by two species of beetles. The raspberry cane-borer (Gberra binmulato) lives in the larval state in the centre of the cane, where it burrows downward, often causing the death of the cane. It is a native insect, feeding in the wild raspberries, but has transferred its attention to the cultivated varieties. The per fect insect is a cerambveid or long-horned beetle, with a long and narrow black body, the top of the thorax being pale yellowish. It appears in June, and the female lays her eggs toward the end of that month, girdling the young growing cane near the tip in two places and inserting the egg between the girdles. This insect feeds in black berry as well as in raspberry stems. The remedy consists in pruning the girdled tips as soon as observed, and they are very evident from the withering of the terminal leaves. The other cane-borer is the red-necked Agrilus (Agrilus rufieollis). This is a buprestid beetle which lays its eggs in the stems of raspberry and blackberry. and the resultant larva makes a swelling in the cane. Several lame will he found under the bark of one of these swellings, and when full grown they penetrate to the pith and transform to pupae from which the perfect beetles escape early in the summer.
Raspberry canes are sometimes damaged to some extent by the snowy tree-cricket (Ecan thus airens). which perforates the stems to a distance of an inch or more, inserting its eggs in the per forations. This is the only damage doneby this
insect, which, after it issues, feeds upon plant-lice. The raspberry sawfly (8elandria nail) in the larval condition feeds upon the leaves, and trans forms to pupa at the surface of the ground or a little below the surface. This insect is de stroyed, when abundant, by sprinkling with helle bore and water. Several species of Lepidoptera in the larval state feed upon the leaves of rasp berry, and there is a little measuring worm which feeds upon the fruit. This species (.Synchlora Errata) reaches full growth about the time of the ripening of the raspberry. when it is about three fourths of an inch long, of a yellowish gray color, each segment being furnished with several sharp thorns. It has the habit of disguising itself by attaching to these thorns small bits of vegetable matter, such as the anthers of flowers and bits of leaf. The adult moth is of a delicate pale green color, and has a wing-expanse of about half an inch. The lien-like negro-bug (q.v.) is often found upon raspberries, and its presence may be discovered by the disagreeable odor of the fruit. The insect is so small that it is often taken into the mouth unnoticed until the disgust ing flavor reveals its presence. Saund ers. bisects injurious to Fruits (Philadelphia. 1889).