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A Disease of Pyrethrum in Kenya
Nature, 1947The demand for pyrethrum (Chrysanthemum cinerariifolium) resulted in a greatly increased production of this profitable crop in Kenya during the War. It has been cultivated commercially in Kenya since 1928. From 1,864 tons in 1938, the yield rose to 7,409 tons from 52,837 acres in 1945.
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Pesticide Science, 1973
AbstractTests on sensitised guinea pigs have indicated that crude pyrethrum oleoresin contains two types of allergens. The more potent are compounds with similar allergenic determinants to the allergens present in the 0.9% saline extract of pyrethrum flowers which have been tentatively classified as glycoproteins or glycopeptides with molecular weights
Frank E. Rickett, Krzysztof Tyszkiewicz
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AbstractTests on sensitised guinea pigs have indicated that crude pyrethrum oleoresin contains two types of allergens. The more potent are compounds with similar allergenic determinants to the allergens present in the 0.9% saline extract of pyrethrum flowers which have been tentatively classified as glycoproteins or glycopeptides with molecular weights
Frank E. Rickett, Krzysztof Tyszkiewicz
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Journal of the American Medical Association, 1934
It is quite generally accepted now that the wind-borne pollens are responsible for the seasonal symptoms of hay fever and asthma. Insect-pollinated plants cannot be blamed for the causation of allergic manifestation by ordinary exposure. For these reasons the numerous insect-pollinated plants and flowers, among which are the roses, chrysanthemums ...
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It is quite generally accepted now that the wind-borne pollens are responsible for the seasonal symptoms of hay fever and asthma. Insect-pollinated plants cannot be blamed for the causation of allergic manifestation by ordinary exposure. For these reasons the numerous insect-pollinated plants and flowers, among which are the roses, chrysanthemums ...
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