. Agricultural news . Head Office: 18, Moorgate Street, London. Branches at BARBADOS, Trinidad, Tobago, Demerara, Colon, Jamaica, Antilla, New York, Halifax , Buenos Aires, Santos, Sao Paulo Rio de Janeiro, Madrid, etc, THE AGRICULTUKAL NEWS. How Ticks are Killed When CattleAre Dipped or Sprayed. CATTLE TICK FEMALR I ^ 3 A knowledge ot Wow a dip i» absoftwd by Ticks when cattle are dipped or sprayed with an arsenical waih is of great assistance in elucidating theprohlem of Tick destruction. Although this subject has given rise lo much conjecture. ver\- little definiie information is obtain
. Agricultural news . Head Office: 18, Moorgate Street, London. Branches at BARBADOS, Trinidad, Tobago, Demerara, Colon, Jamaica, Antilla, New York, Halifax , Buenos Aires, Santos, Sao Paulo Rio de Janeiro, Madrid, etc, THE AGRICULTUKAL NEWS. How Ticks are Killed When CattleAre Dipped or Sprayed. CATTLE TICK FEMALR I ^ 3 A knowledge ot Wow a dip i» absoftwd by Ticks when cattle are dipped or sprayed with an arsenical waih is of great assistance in elucidating theprohlem of Tick destruction. Although this subject has given rise lo much conjecture. ver\- little definiie information is obtainable as a result of practicalexperiment. Work directed by William Cooper and Nephews in South Africa haa, however, hirnished results from which feasible deductions have beenmade, and these appear to throw some lighr on the subject. The theories advanced by different workers are :— t. That the Tick absorbs the poison through its own skin during the process of dipping or spraying. That the absorption of the poison through the sUn of the Tick takes place after the operation of dipping or sprajping is completed. That the poison is absorbed by the skin of the animal, and that the Tick sucks in the poison with the fluids extracted while feeding onthe animal. It follows from No. 1 theory, and it
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