Results 161 to 170 of about 2,057 (187)
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Environmental Entomology, 1983
Phytophagous insects representing six orders, 14 families, and 18 identified and 3 unidentified species are reported as comprising the insect fauna of spiny c1otbur, Xanthium spinosum L. (Compositae), in southern California. Similarly, insects representing six orders, 29 families, and 60 species are reported as associates of cocklebur, X. strumarium L.
Jack H. Hilgendorf, Richard D. Goeden
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Phytophagous insects representing six orders, 14 families, and 18 identified and 3 unidentified species are reported as comprising the insect fauna of spiny c1otbur, Xanthium spinosum L. (Compositae), in southern California. Similarly, insects representing six orders, 29 families, and 60 species are reported as associates of cocklebur, X. strumarium L.
Jack H. Hilgendorf, Richard D. Goeden
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Influence of Potential Stress Factors on Anthracnose Development on Xanthium spinosum
The Journal of Applied Ecology, 1990The fungal pathogen Colletotrichum orbiculare which causes anthracnose of the exotic weed Xanthium spinosum is being evaluated for use as a mycoherbicide for biological control of the weed in Australia. Four experiments investigated the effects of potential stress factors on the host-pathogen interaction.
B. A. Auld, M. M. Say, G. D. Millar
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Role of conidial matrix of Colletotrichum orbiculare in pathogenesis of Xanthium spinosum
Mycological Research, 1990The extracellular conidial matrix in Colletotrichum orbiculare inoculum hastened the onset of visual symptoms and the level of anthracnose development in Xanthium spinosum. The conidial matrix contained enzymes known to be involved in fungal penetration of plants — cellulase, non-specific esterase, invertase, pectinesterase and pectic lyase.
C.F. McRae, G.R. Stevens
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CONTACT ALLERGY TO COCKLEBUR (XANTHIUM SPINOSUM)
Archives of Dermatology and Syphilology, 1939During the last three years I have observed a man aged 68 years who had typical dermatitis venenata in April, two years before I saw him. It started on the face, hands, arms and legs, spreading to a lesser degree over the entire body, gradually diminishing in the fall and winter.
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[Xanthium spinosum L.--a phytochemical study].
Ceska a Slovenska farmacie : casopis Ceske farmaceuticke spolecnosti a Slovenske farmaceuticke spolecnosti, 2005The paper deals with the isolation of the constituents of Xanthium spinosum L. and the determination of its biological activity (toxicity). The taxon which is found also in our flora has not been studied from this aspect yet. The used methodology is of a bioassay-guided separation character.
J, Klecáková-Karlícková, L, Jahodár
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Assessment of the biological effects of Xanthium spinosum L. extract
Romanian Journal of Veterinary SciencesXanthium spinosum is an annual plant commonly found in uncultivated and vacant areas. It is considered a quarantine weed because it reduces the value of crops and pastures. For therapeutic purposes, the aerial part of the plant is harvested be-tween June and August.
Rareș Terzea +5 more
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Xanthanolides from Xanthium spinosum
Phytochemistry, 1991M. Abdei-Mogib +3 more
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