. The standard cyclopedia of modern agriculture and rural economy, by the most distinguished authorities and specialists under the editorship of Professor R. Patrick Wright ... e shoots and at the base of the needles ofthe young shoots. The eggs are stalked, andto some extent covered with wool; the licecoming from them puncture the base of the needles and cause them to swell up at theirbases, and by degrees the pineapple-like gallis formed. As the swollen needles unite attheir bases, there are formed chambers in whichthe lice live and grow; each chamber eventuallycontains a number of aphides a
. The standard cyclopedia of modern agriculture and rural economy, by the most distinguished authorities and specialists under the editorship of Professor R. Patrick Wright ... e shoots and at the base of the needles ofthe young shoots. The eggs are stalked, andto some extent covered with wool; the licecoming from them puncture the base of the needles and cause them to swell up at theirbases, and by degrees the pineapple-like gallis formed. As the swollen needles unite attheir bases, there are formed chambers in whichthe lice live and grow; each chamber eventuallycontains a number of aphides and becomes linedwith a mealy substance and oil globules. Thecones are at first pink and green, and thenharden and become brown. They may grow toan inch or more in length, and may contain asmany as 2000 inhabitants. In June, July, andAugust the galls open, and pupae and wingedfemales escape and the latter fly from tree totree. The winged females lay eggs towardsautumn on the apices of the needles, coveredwith white wool. Larvae coming from theseeither die or hibernate in the base of the minute blind apterous male occurs. Thesexual egg is always laid on the
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectagriculture, bookyear
