Abstract
Five nematicides were tested in established Sultana vineyards on sands to sandy loams for control of parasitic nematodes and effects on growth and yield of the vines. Different formulations and application times and rates were used in four experiments between 1979 and 1983. Only 1,2-dibromo-3-chloropropane (DBCP) consistently reduced soil populations of Meloidogyne javanica (Treub) Chitwood and Tylenchulus semipenetrans Cobb, but aldicarb was effective against M. javanica over two years. Phytotoxicity symptoms were obvious on oxamyltreated vines in 1982, and yields and berry acidity were reduced. Fenamiphos reduced nematode numbers in two experiments and ethoprop in one, but no non-volatile nematicide increased vine growth or yield.
- Received January 1986.
- Copyright 1986 by the American Society for Enology and Viticulture
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