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Growth of Witchweed (Striga asiatica) as Affected by Soil Types and Soil and Air Temperatures
Published online by Cambridge University Press: 12 June 2017
Extract
Witchweed (Striga asiatica), a parasitic plant with brilliant-red flowers and hairy bright-green stems and leaves, was identified in the Western Hemisphere for the first time in 1956, although it had been present in the United States for several years. Figure 1 shows severe corn damage caused by witchweed. In a 1959 survey conducted by the United States Department of Agriculture witchweed was found on approximately 250,000 acres of land in 15 counties in North Carolina and 7 counties in South Carolina. It attacks many species in the family Gramineae. Witchweed jeopardizes the production of corn, sorghum, sugarcane, and probably other gramineous crops in any climatological regions of the United States where it may be adapted. This study attempted to obtain some indication of the possible limits of its spread.
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- Copyright © 1960 Weed Science Society of America
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