Insect pests of farm, garden and orchard . ine<l leaf-bug. (After Slingerland.) they first appear. The female is furnished with a strong ovipositorwith which she inserts the eggs in slits cut lengthwise into thestems of the plants extending nearly half way through the half-dozen or more eggs are packed together in the small slit,which may be one-eighth inch long. The individual egg is aboutone-sixteenth inch long, light yellow, and shaped as in Fig. 346e,with the upper third capped by a white, finely striated portion. With the giowth of the surrounding tissue of the stem, the eggs 48
Insect pests of farm, garden and orchard . ine<l leaf-bug. (After Slingerland.) they first appear. The female is furnished with a strong ovipositorwith which she inserts the eggs in slits cut lengthwise into thestems of the plants extending nearly half way through the half-dozen or more eggs are packed together in the small slit,which may be one-eighth inch long. The individual egg is aboutone-sixteenth inch long, light yellow, and shaped as in Fig. 346e,with the upper third capped by a white, finely striated portion. With the giowth of the surrounding tissue of the stem, the eggs 484 INSECT PESTS OF FARM, GARDEN AND ORCHARD arc usually forced out of the slit somewhat, so that about one-half. . of tlie white porticni of the egg projects from the of the slits are made two or three inches, rarely over sixinches, below the tender tips. Control.—Experiments indicate that the nymphs may bekilled by spraying them with kerosene emulsion containing 10per cent kerosene. Tobacco extracts should also be tried. The. Fig. 348.—Cununt loaves killed by the four-liruMl leat-buji;. (After Slinger- hmd.) adults ar(» not susceptibl(> to this treatment, however. Rothnymphs and adults will drop from the foliage when distiubed,and Prof(>ssor Slingerland has suggested that they might be jarredinto a pan of kerosene. By drawing pans, such as constructedfor combating the pea-aphis (p. 326), between the rows andjarring the l)ugs into them, many might be destroyed. As theeggs are readily recognized, the tips containing them should becut off and destroved durinii the winter. The Currant-aphis * The young foliage of currants, and sonutimes of gooseber-ries, is often found curled up in late sj)ring with many l)ladder- * Mi/zus ribis Linn. Family Apliididw. See V. 11. Lowe, Bulletin 131),N. Y. .\{ir. Exp. Sta., p. 0()0. .other .species, /?/(o/)/(uw rihis Linn.,is also common im currant and is described and fijrured 1)V Mr. Lowe. INSECTS INJURIOUS TO CURRANT A
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