In my last Lecture I have you some idea of the economic importance of the different animal groups from the lowest organisms (Rotozone)to the highest evolved group of animals (Mammals).especially from on agricultural point of view.I shall deal now with the different aspects of the Arthropoda in their relation to the S.Indian farmer.with the help of diagrams and slides.which in a subject like this. will be far more effective and telling than a torrent of the most carefully selected adjectives.I may state at the very begining that the animals included in this big sub-kingdom of animals(Arthropoda) play a far more important role in the economy of man than most others and from the point of vie of harm theycause to the farmer and laymman,this group surpasses in importance every other animal community in the world.
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