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Horizontal and Vertical Distribution of Rotylenchulus reniformis in a Mississippi Cotton Field

H.K. Lee, G.W. Lawrence, A.T. Kelley and K.S. McLean


ABSTRACT

The study was conducted in 2000 and 2001 to examine the horizontal and vertical distribution of the reniform nematode (Rotylenchulus reniformis) in a Mississippi cotton field. In a continuous cotton production field, soil samples were collected at planting in 2000 and 2001 and at harvest in 2001. the reniform nematode was found at all sample points and depths. The highest number of nematodes at planting were found at the 46-60 cm depths in 2000 and 76-90 cm depths in 2001. At harvest the highest number of nematodes was found at the 0-15 cm depths.In 2000 after corn the highest number of nematodes was found at the 76-90 cm depths. At planting with cotton in 2001 the highest number of nematodes was found at the 46-60 cm depths. At harvest the highest numbers were found at the in the upper most 0-15 cm depths.





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Document last modified May 20, 2002