A Modification and Evaluation of the Apparatus for the Oostenbrink Direct Cottonwool Filter Extraction Method1)

  title={A Modification and Evaluation of the Apparatus for the Oostenbrink Direct Cottonwool Filter Extraction Method1)},
  author={J. L. Townshend},
The apparatus for the Oostenbrink direct cottonwool filter extraction method was modified for more efficient use of laboratory space. Yields of Pratylenchus penetrans were larger than those of Xiphinema americanum by this method but the converse was true for the Cobb method. 

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