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Examples
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The main striga is Striga hermonthica, a native species.
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TORONTO, ON - Each year, thousands of acres of crops are planted throughout Africa, Asia and Australia only to be laid to waste by a parasitic plant called Striga, also known as witchweed.
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Striga in Italy was more of a witch rather than vampire who cursed children.
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Across Africa, IAS in the genus Striga have a direct impact on local livelihoods, affecting more than 100 million people and as much as 40 percent of arable land in the savannahs.
Invasive alien species and development challenges in Africa 2007
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More than a hundred million Africans lose some or all of their crops to Striga.
Day of the Dandelion Peter Pringle 2007
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Cowpea roots are known to stimulate Striga germination underground, but the close intercropping reduced the weed's emergence from the soil.
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· The main striga species (notably in southern Africa) is the Asian type (Striga asiatica), so that plant breeders can use genes from strigaresistant Indian sorghums.
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Striga seeds refuse to germinate until they receive a chemical signal from the root of a potential host.
Chapter 23 1996
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International Agricultural Development (Jan/Feb 1994) reports that dense intercropping of cowpea in millet stands can reduce Striga emergence.
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The parasitic weed Striga hermonthica is a major problem in African millet fields.
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