波尔多液

波爾多液
Bō'ěrduōyè
noun

Meanings

  1. 1 Bordeaux mixture (copper sulfate + lime fungicide used on grapevines and other crops)

Examples

Guǒnóng yòng Bō'ěrduō yè pēnsǎ pútáo shù fángzhì shuāngméibìng.
Fruit growers spray grapevines with Bordeaux mixture to prevent downy mildew.
Bō'ěrduō yè shì shíjiǔ shìjì Fǎguó fāmíng de nóngyào.
Bordeaux mixture is a 19th-century French-invented pesticide.

Tips

history
Discovered by accident in the 1880s by Bordeaux winemakers who painted vines with a copper-and-lime slurry to deter thieves — and noticed mildew vanished too. Botanist Pierre-Marie-Alexis Millardet then formalised it. Still one of the few fungicides allowed in organic agriculture (有机农业 yǒujī nóngyè) today.

Stroke Order

ěr
duō