The Potato Plant Its Uses And Properties Together With the Cause of the Presen
The Potato Plant Its Uses And Properties Together With the Cause of the Presen
Alfred Smee
The book The Potato Plant Its Uses And Properties Together With the Cause of the Presen was written by author Alfred Smee Here you can read free online of The Potato Plant Its Uses And Properties Together With the Cause of the Presen book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is The Potato Plant Its Uses And Properties Together With the Cause of the Presen a good or bad book?
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Aphis of the hop (376). Aphis of the cabbage and turnip (377). Aphis of the pea (378). Instance of mischief by [Kirby] (379). Bean aphis (380). Apple-tree aphis (381). Sugar-cane (382). Aphis of larch (383). Rose-tree aphis (384). Aphis on couch-grass (385). Aphides generally (386). ' (375. ) THE species comprised in the family " Aphides" are a sad pest to the human race. It is quite uncertain how many there are, * for abstract science is so little ap- preciated, so little cared for or encourag...ed, that few can afford to spend their time in watching an Aphis ; and thus, when great calamities come, men see not the cause, because they know not the insect. (376. ) The Aphis of the hop lives upon the leaves of that plant, and does so much damage, that in bad years its ravages will cause a reduction in the value of hops pro- duced in Great Britain amounting to very near 3, 000, 0007. Sterling. This year the insects threatened to destroy th e crop, but suddenly a thunder storm swept every one of them from the face of the plantations, and so thoroughly were they annihilated, that when I sent to Kent to procure some specimens of this species, I received answer that there were none to be found.
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