. Insect pests of farm, garden and orchard . Fig. 335.—The red-necked cane-borer {Ai,rlHS ruficollis Fab.): beetle,larva, and gall—all much enlarged. (After Riley.) may throw out leaves, but they rarely ripen fruit and usually dieduring the season. By opening the gall it will be found that onlythe bark has been injured by a spiral channel which girdles thestem and causes the gall-like thickening of the bark. Abovethe swelling evidence will be found of the borers work in the * Agrillus ruficollis Fab. Family Buprestidoe. See J. B. Smith, 12thRsport, N. J. Agr. Exp. Sta., p. 373; and F. M. Webst
. Insect pests of farm, garden and orchard . Fig. 335.—The red-necked cane-borer {Ai,rlHS ruficollis Fab.): beetle,larva, and gall—all much enlarged. (After Riley.) may throw out leaves, but they rarely ripen fruit and usually dieduring the season. By opening the gall it will be found that onlythe bark has been injured by a spiral channel which girdles thestem and causes the gall-like thickening of the bark. Abovethe swelling evidence will be found of the borers work in the * Agrillus ruficollis Fab. Family Buprestidoe. See J. B. Smith, 12thRsport, N. J. Agr. Exp. Sta., p. 373; and F. M. Webster, , p. 191. INSECTS INJURIOUS TO RASPBERRY AND BLACKBERRY 467 pith, and from one to six inches above the gall the slender whitelarva will be found at work. There seems to be considerable difference in the susceptibilityof varieties, Dr. Smith oloserving that the Wilson and black-cap raspberries are badl} infested, while the Missouri Mammoth and others were unharmed. Life History.—The eggs are laid in June, but have not beenol^se
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