Tetranychus urticae, commonly known as the two-spotted spider mite, is a tiny arachnid that primarily affects plants. Measuring about 0.5 mm in size, it is often recognized by its two distinctive dark spots on its body. These mites thrive in warm, dry conditions and can reproduce rapidly, leading to significant infestations. These pests feed on plant sap, which can cause yellowing and stippling of leaves, ultimately weakening the plant. Tetranychus urticae is a common pest in agricultural settings, affecting a wide range of crops, including fruits, vegetables, and ornamental plants. Effective management often involves integrated pest management strategies.