VERY CURIOUS NATURAL HIS-- TORY OF THE POTAToE DIS>

 EASE. 1
{"character_count": 2733, "word_count": 469, "ccnet_language_score": [0.9405999779701233], "ccnet_perplexity": [921.9000244140625], "fasttext_language": ["en"]}
A. Since, Esq, F. R. S., surgeon to the Bank of England. has furnished q work on the potatoe, of the most useful des> cription at the present moment, Tho facts which he describes, prove that the disease is produced Gy a member Of thas aphides family, which as signidcont oF its destroying properties, MT. Since calf@ 'vastator' Uhe destroyer.) Th!5 insect. is so numerous sometimes that Mr. Snlos has scouped up half pill box of he winged creatures from a siae gle leaf of the beef plant. It is migratory in it's habits, and there is preternatural albums dance of the race. Wherever they set- tie, dry or moist gangreGe immediately follows, which cuts off the nourshment that the plant receives through the leaves This gangrene sometimes is upwards A theory has been started that the potatoe has had it's career--that the plant has now become old and is now dying. MT. Since, however asserts that the facts dok no, bear out the assertion. The author describes the nature and habits of tho 'aphis vaslator.' If the leaves und stalk of the potatoe plant be carefully exam- incd, a small insect will be found, feeds ing either alone or in company, princi- pally on the under surface ofthe leaf. IL | adheres to the plant in state of rerose. with it's atlenne refexed over its back-- sort of proboscis applied 10 the leaf-- The vasla:or comes upon the potatoe crop in a winged state, and there brings forth it's young alive, which multiply so rapidly that Reamur has proved thatin five generstions ono insect may De ths progcnitor or 5,904 100000 descendants, and it is supposed that in one year there may be 20 generations. So numerous are these aphides, that the author has seen the whole air filled with them in the form of mist-the creatures have evS en settled upon himself in the streets oe London-and wherever he has seen the destroyer winging his way to further destruction. The vastator passes over field ikea blast, it damages the root, les sens the vital power of the plant, and tho insect then assumes the winged state and flies away. The yastator by no means confines it's ravages 10 the potatoc--it preys upon the turnip, beet, cabbage, bros cnli, addish, wild solam, henbane ssra- monium, bellalonna, clover, grou>dsel, enphorbia, some so>ts of .rummex, mall- ow, shepherds purse holy>ihisile and some kinds of grass--i; will also live on wheat, Jerusalem ariichoke, and also the l sweet pota,oe. In the midst of all this general devastation, however, we draw encouragement for ihe future, from the well known fact that aphides are kept in subiectien by other insects; ichnumeens and other hymenHptera, also bY coieop- terra, us ladybirds, by some dipterous if- secss, and by spiders, birds, &c. s@

 IJeyrold's Newspaper.