1887

oa Journal of the Entomological Society of Southern Africa - Insecticides of plant origin, their sources, possible use and exploitation in South Africa

Volume 9, Issue 1
  • ISSN : 0013-8789

 

Abstract

Plants have been used from time immemorial as a source of poisons for various purposes and in many tropical countries native lore has provided clues to insecticidal plants from which highly efficient insecticides have been developed. The toxins are, however, so combined chemically in the parent plant that various animals and insects may feed on the plant without coming to any harm. Although finely ground poison-bearing tissues of some plants are used as such, the toxic principles are usually extracted by means of an organic solvent before being put to use as insecticides.

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/content/JESSA/9/1/AJA00128789_4392
1946-03-01
2017-02-28

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