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Is asiatic witchweed invasive?
Asiatic witchweed thrives in dry, infertile soils, which is why it can often be a very problematic weed in semi-arid regions of Africa and Asia, and in areas a bit north and a bit south to the tropical belt. Its plant hosts include very important agricultural crops like corn, rice, sugar cane, millet and sorghum. It is widely listed as a noxious weed and an invasive species. Asiatic witchweed attacks the roots of the host plant, and its seedlings are not visible above the ground. When the plant matures, it will produce aerial stems, leaves, flowers and finally, seeds.
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