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Excerpt from The Buckthorn Aphid
Small aphids, sometimes green and sometimes yellow, an nually abundant on a wide range Of vegetation have for years perplexed the writer. They all resemble each other in having sensoria on the third. Fourth and Often on the fifth. Segment Of the antenna Of the winged form, in having usually three or four pairs Of caudal hairs. And in having pale cornicles and cauda in the wingless forms; but there is variation enough to make the problem whether they were one species or many a query which could not be answered until the life cycle was worked out; It was not until the summer Of 1923 that I made sure that a single species overwintering on buckthorn (rhamnus) produced winged forms in the spring that migrated to vegetable gardens and flower gardens and weeds and produced the whole number Of these troublesome summer aphids agreeing in those structural char acters just indicated. This throws the buckthorn aphid, as pro genitor for a very troublesome brood, into an economic per spective with which hitherto it has not been viewed; and makes desirable a statement with reference to its activities.
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The Buckthorn Aphid (Classic Reprint)
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Paperback. Condizione: New. Print on Demand. This book unravels the fascinating life of the buckthorn aphid, an insect that has long perplexed scientists. Detailed scientific observations and meticulous analysis reveal the buckthorn aphid's remarkable life cycle and captivating migratory habits. The author provides insights into its role as a vector of plant diseases, exploring the interconnectedness of ecosystems. This book shines a light on the intricate tapestry of the natural world, highlighting the profound impact of even the smallest of creatures on the delicate balance of life. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Codice articolo 9780365553519_0
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