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The Book of Songs, China's earliest anthology of poetry, contains a poem titled 'Datian' (The Great Field) which reflects agricultural life in the Western Zhou Dynasty.
The poet expresses joy over a bountiful harvest brought by favorable weather: 'The grains have formed husks, growing strong and perfect, with no barnyard grass or foxtail grass. We remove pests like green worms and silk worms, not letting them harm our crops. O God of Millet, being spiritual, quickly cast them into the fire!'

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Open the tool →不稂不莠 (bù láng bù yǒu) is a Chinese idiom (chengyu) meaning “Useless”.
不稂不莠 is pronounced bù láng bù yǒu in Mandarin Chinese.
Literally, 不稂不莠 means “Neither barnyard grass nor foxtail grass; without weeds or wild grasses”. It is used to mean “Useless”.
不稂不莠 comes from a classical Chinese story dating back to ancient China. The full story is on this page.
稂:狼尾草;莠:狗尾草。本指禾苗中中无野草。后比喻人不成才,没出息。