MD. SHAKIL SARKER

  Poisonous Plants and Natural Pesticides Definition of  Poisonous Plants: A poisonous plant is one which, as a whole or a part thereof, under all or certain conditions and in a manner and in amount to be taken or brought into contact with an organism will exert or cause death either immediately or by reason of cumulative action of the toxic property due to the presence of known or unknown chemical substance in it, and not by mechanical method. Definition of Natural Pesticides: Pest is any animal, plant or microorganism that causes trouble, injuries or destruction; therefore, pesticide may  be defined simply as chemical agents used to control or eliminate pest.  Datura/ Stramonium Synonyms: Thornapple leaves; Jimson or Jamestown weed; Dhatura; Stinkweed; Devil's apple: Apple of Peru; Folia stramonii. Biological Source: Stramonlum consists of dried leaves and flowering tops of Datura stramonium Linn. or its variety D. tatula . Family: Solanaceae. Geographical Sourc...