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What are the ill effects of Parthenium?...

What are the ill effects of Parthenium?

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(i) It is a harmful weed in the forest which suppresses the growth of native species and reduces the availability of fodder for animals.
(ii) It infests pastures and farmland causing often loss of yield.
(iii) The plant produces allelopathic chemicals that suppress crop and native plants and its pollen causes allergic rhinitis and asthma, dermatitis in humanbeing.
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