red spider mite

US /ˌred ˈspaɪ.dər maɪt/
UK /ˌred ˈspaɪ.dər maɪt/
"red spider mite" picture
1.

ragnetto rosso, acaro rosso

a tiny arachnid pest (Tetranychus urticae) that feeds on the sap of plants, causing damage to leaves and fruits, often found on the undersides of leaves and characterized by its reddish color

:
The gardener noticed a severe infestation of red spider mites on his tomato plants.
Il giardiniere ha notato una grave infestazione di ragnetti rossi sulle sue piante di pomodoro.
To control red spider mites, it's often recommended to increase humidity and use insecticidal soap.
Per controllare i ragnetti rossi, è spesso consigliato aumentare l'umidità e usare sapone insetticida.