除草剤に抵抗性を示す雑草のバイオタイプの日本国内における出現 : アンケートによる調査の結果

概要

論文の詳細を見る
A survey was carried out through questionnaire in March 1989 to study the occurrence and distribution of herbicide-resistant weeds in Japan. Nine weed species in addition to Echinochloa species were found to have herbicide-resistant biotypes including three species of Erigeron, i. e., E. philadelphicus L., E. canadensis L. and E. sumatrensis RETZ., which were reported at many survey sites. The distribution of herbicide-resistant E. philadelphicus was recorded mainly in the Kanto district, while herbicide-resistant E. canadensis and E. sumatrensis showed a wider distribution from the Kanto district to the Kyushu district compared with E. philadelphicus (Fig. 1-3). Herbicide-resistant biotypes were first observed 5 or 2-3 years prior to the survey, in most cases (Table 2). Herbicide-resistant biotypes were mainly observed in orchards, mulberry or tea fields, along roadsides, in upland fields and abandoned fields, where paraquat was frequently applied (Table 3).
日本雑草学会の論文
1990-12-25