| http://www.w3.org/ns/prov#value | - After research in Zambia and Malawi into thesubstances in wild plants that can control insects and other pests, it was reported: ???We foundthat most farmers were very knowledgeable about the pesticidal properties of a large numberof plants???, although they use relatively few on a regular basis.???171 In view of indications thatthe use of traditional varieties and methods are on the decline,172 t
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