title: Management of Plant-parasitic Nematodes with a Chitin-Urea Soil Amendment and Other Materials.
abstract: Field trials were conducted with a chitin-urea soil amendment and several other nematicides on four crop-nematode combinations: tomato-Meloidogyne incognita; potato-Meloidogyne chitwoodi; walnut-Pratylenchus vulnus; and brussels sprouts-Heterodera schachtii. Significant (P </= 0.10) nematode population reductions were obtained with the chitin-urea soil amendment in the trims on potato and walnut. In the trials on brussels sprouts and on tomato, phytotoxicity occurred at rates of 1,868 and 1,093 kg/ha, respectively. Significant (P </= 0.10) nematode reductions were also obtained with metham sodium on potato; with 1,3-D on tomato and brussels sprouts; and with sodium tetrathiocarbonate, XRM 5053, fenamiphos, ethoprop, LX1075-05, LX1075-07, and SN 109106 on tomato. The following materials did not provide significant nematode control under the conditions of the particular experiments: metham sodium, oxamyl, and Yucca extract on tomato; and dazomet granules on brussels sprouts.
authors.forename: B B
authors.initials: BB
authors.lastname: Westerdahl
authors.forename: H L
authors.initials: HL
authors.lastname: Carlson
authors.forename: J
authors.initials: J
authors.lastname: Grant
authors.forename: J D
authors.initials: JD
authors.lastname: Radewald
authors.forename: N
authors.initials: N
authors.lastname: Welch
authors.forename: C A
authors.initials: CA
authors.lastname: Anderson
authors.forename: J
authors.initials: J
authors.lastname: Darso
authors.forename: D
authors.initials: D
authors.lastname: Kirby
authors.forename: F
authors.initials: F
authors.lastname: Shibuya