black canker

名詞

可算名詞不可算名詞

Any of several plant diseases causing the formation of dark cankers. / The larva of the turnip sawfly (Athalia rosae), an agricultural pest having the appearance of a black caterpillar.

日本語の意味

1. 複数の植物病のうち、植物に黒い壊死性病斑（かんかく）を形成させる病気。 / 2. ターンリップソーフライ（Athalia rosae）の幼虫。農作物に被害を与え、見た目が黒い毛虫に似ている。

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Google翻訳 / DeepL翻訳

何年も続いた雨季の後、果樹園のナシの木は黒いこぶ状の病斑に弱り、樹皮にへこんだ暗い病斑が残った。

詳細

意味（1）

Any of several plant diseases causing the formation of dark cankers.

Scab and black canker is rapidly destroying Salix vitellina in Nova Scotia. Ten per cent of the trees surviving from previous years were killed. The damage caused by these two diseases can not be estimated separately.

Google翻訳 / DeepL翻訳

詳細

意味（2）

The larva of the turnip sawfly (Athalia rosae), an agricultural pest having the appearance of a black caterpillar.

Among the numerous enemies to which turnips are liable, none have proved more fatal here than the black canker (a species of caterpillar) which in some years have been so numerous as to cut off the farmer's hopes in a few days.

Google翻訳 / DeepL翻訳

詳細

black cankers

（ plural ）

詳細

black canker

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