Economic entomology for the farmer and fruit-grower : and for use as a text-book in agricultural schools and colleges . Canker-worm, larva of Anisoptcryxpometaria.—a, b, &%%, enlarged ; e, patch of eggs; c, d, bodysegments of/, lar\-a ; g, pupa of female. a, larva of Paleacrita vernata;b, an ^SS^ much enlarged; c, d,body segments of lar\a. trunk below any obstruction that it cannot pass. The younglarvae will attempt to get to the leaves, and will, if they find animpassable barrier, starve to death. The best materials, allthings considered, are raupenleim, or dendrolene, prefer-ably the latter,
Economic entomology for the farmer and fruit-grower : and for use as a text-book in agricultural schools and colleges . Canker-worm, larva of Anisoptcryxpometaria.—a, b, &%%, enlarged ; e, patch of eggs; c, d, bodysegments of/, lar\-a ; g, pupa of female. a, larva of Paleacrita vernata;b, an ^SS^ much enlarged; c, d,body segments of lar\a. trunk below any obstruction that it cannot pass. The younglarvae will attempt to get to the leaves, and will, if they find animpassable barrier, starve to death. The best materials, allthings considered, are raupenleim, or dendrolene, prefer-ably the latter, as it remains viscid for the full period duringwhich the insects hatch, and forms a perfect barrier beneath orthrough which no creature can crawl and live. A band sixinches in width and a quarter of an inch or more in thicknessover thick wrapping-paper will prove a perfect protection. Fluffywool or cotton may also be employed, and the former is the mostlasting, but less certain than the dendrolene. A near relative of these canker-worms is the lime-tree moth,Hybernia tiliaria, which also attacks a variety of
Size: 2036px × 1228px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsectp, bookyear1906
