Machines for the Treatment of Cotton Seed Against Pink Boll Worm Gelechia Gossy
Machines for the Treatment of Cotton Seed Against Pink Boll Worm Gelechia Gossy
G Storey
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'i-or 50 7. " 53 C LOO 56'C 100 Kin 58C KMI Kin .. 80C 100 KMI "iUl ti, inor> ' in M t, 'll, -, l IIIMSS round tlir I. ^urh lorks of c i i- \\ il ti 1 li>- SIMM!, from whii-li ili\ edbythe ''! into s|, ' uhii'li ti'iir (linn ii|, nnil -c|initi- tin- linl from tlir - I. 16 On the second occasion the results were very similar : In Ordinary Seed. In Seed from Mnlnini/i. Per Cent. Per Cent. Seed treated at 49 C 72 56 5lo C 94 100 52o f 96 91 53 C 100 100 540 c 100 94 55-60 C. (Av. ) ... 61-65 C. (A...v. ) ... 100 100 99 100 From these figures it is clear that for practical purposes the effect on the worms in mabruma cotton may be regarded as the same as that on the worms in sifted seed. The second objection to putting the heating machine between the gins and the sifters is a more serious one, as may be seen from Table I, from which it is clear that if the seed is rapidly cooled after leaving the machine a much higher temperature is necessary to ensure the killing of all the worms.
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