Control of the dagger nematode Xiphinema brevicolle (Dorylaimida: Longidoridae) in wrapped root balls of the Japanese holly Ilex crenata (Celastrales: Aquifoliaceae) by drenching in a fenitrothion or benomyl solution
2015
Takeda, A. ((Chiba Prefectural Agriculture and Forestry Research Center, Chiba (Japan)), (Chiba University, Matsudo, Chiba (Japan). Graduate School of Horticulture)) | Shito, T. | Kato, M. | Hisaka, H. | Shibata, T.
We evaluated fosthiazate, fenitrothion, and benomyl for the management of dagger nematodes (DNs, primarily Xiphinema brevicolle), in the root-ball soil of Japanese holly (Ilex crenata Thumb.). When root balls were drenched in diluted solutions of these agrochemicals, fenitrothion and benomyl were effective against DN populations but fosthiazate was not. Benomyl suppressed DN population recovery completely from 7 days to at least 60 days after treatment. Although fenitrothion suppressed DN populations completely for seven days after treatment, this duration of the suppressive effect was much shorter than that of benomyl, possibly because of the hatching of surviving eggs. The hatching of eggs that survived the fenitrothion treatment was hindered by post-treatment preservation at 5degC.
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