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Lonchocarpus, Derris, and Pyrethrum Cultivation and Sources of Supply

Edward Counselman Higbee

出版	U.S. Department of Agriculture, 1948
URL	http://books.google.com.hk/books?id=Lpr47DhFzB4C&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋

Interest in these plants, in addition to their effectiveness against numerous pests, is also because commercial pyrethrum and rotenone insecticides derived from these plants are also comparatively nontoxic to man and other warm-blooded animals. They may be used with safety in the household, for livestock dips and sprays, and on garden vegetables, fruits and canning crops.