What is a distinguishing feature of adult Black vine weevils?

Adult Black vine weevils are characterized by their distinctive feeding patterns, which leave crescent-shaped notches in the margins of leaves. These notches are a key identifying feature, as the adults feed primarily at night, which can lead to more significant damage to the foliage. The unique crescent shapes result from their chewing habits and are often one of the first signs of their presence in a garden or landscape. This distinguishing feature helps in the identification of these pests, enabling more effective management strategies. Understanding this behavior is critical for diagnosing plant health issues and implementing appropriate pest control measures.