red spider
US /ˌred ˈspaɪ.dər/
UK /ˌred ˈspaɪ.dər/
1.
araignée rouge, tétranyque
a tiny red or reddish-brown mite that feeds on the sap of plants, often causing damage to crops and garden plants
:
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The leaves of the rose bush were covered in tiny red spiders.
Les feuilles du rosier étaient couvertes de minuscules araignées rouges.
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You need to treat your plants for red spider infestation.
Vous devez traiter vos plantes contre l'infestation de tétranyques.