廊坊市重新发现小麦条锈病

Wheat stripe rust was found again in Langfang city

时隔26年之后,河北省廊坊市于2017年5月中、下旬在文安县和大城县的三块麦田中发现了小麦条锈病,但仅为单片病叶,未形成发病中心。这一现象,与2017年小麦条锈病在我国东部麦区流行并向北扩展的总体趋势一致,与本地主栽小麦品种抗病性不强、5月高温、少雨抑制了病菌的再侵染有关。鉴于本地小麦主栽品种抗性布局,小麦条锈病一旦流行,即有造成重大损失的可能,需引起重视。

In mid and late May 2017, wheat stripe rust was found again after 26 years from the last record at three fields in Wen＇an and Dacheng counties in Langfang, Hebei province. Only single infected leaves were found and there was no infecting center, which was consistent with the tendency that wheat stripe rust took place in east China and spread north forward in 2017. And this occurrence was related to local wheat varieties with weak disease resistance and secondary infection inhibited by high temperature and less rainfall in May. It should be paid more attention to resistance structure of local wheat varieties, which is under high risk of wheat stripe rust.