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Effects of Treatment Time of Cadusafos and Fosthiazate for the Control of Meloidogyne arenaria on Oriental Melon  

김동근 (경북농업기술원 환경농업연구과)
김진배 (농촌진흥청 농업과학기술원)
이재국 (농촌진흥청 농업과학기술원)
최성국 (경북농업기술원 환경농업연구과)
윤재탁 (경북농업기술원 환경농업연구과)
Publication Information
Korean journal of applied entomology / v.41, no.4, 2002 , pp. 293-298 More about this Journal
Abstract
Cadusafos and fosthiazate were applied at the rate of 1.8 g a.i./6$\m^2$ as pre-plant or pre-plant+post-plant treatments on winter-grown oriental melon in a greenhouse soil infested with Meloidogyne arenaria. Nematicides reduced root-knot nematode population from 35 to 90% compared with control; fosthiazate was better than cadusafos (P = 0.003) and fosthiazate pre-plant+post-plant application reduced nematode population densities as much as 90%. Nematicides increased yield in an average of 23% (11-38%) in May, 39% (2-65%) in June, and 31% (12-46%) for the total (P = 0.085). The residue in the fruit of oriental melon by post-plant treatment of fosthiazate exceeded maximum residue limit of 0.2ppm, while the Cadusafos residue was below the limit. It is concluded that fosthiazate cannot be used as a post-plant treatment in winer-grown oriental melon with overall consideration, i. e., danger of residue, value of melon, costs of nematicide, consumer demand on safer agricultural products, and effects of fallow.
Keywords
Chemical control; Cucumis melo; Nonfumigant nematicides; Oriental melon; Post-plant treatment; Root-knot nematode;
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