Which stage does the Alfalfa Weevil larvae primarily feed on?

The Alfalfa Weevil larvae primarily feed on open leaves because they are specifically adapted to target the nutritious tissues of young leaves. This feeding behavior occurs during the larval stage, which is critical for the larvae's development and growth. Young leaves are rich in proteins and other nutrients essential for the larvae as they grow and prepare for their pupal stage.

In the context of alfalfa crops, the feeding by the larvae can lead to significant damage, as they can consume a large portion of the leaf area, reducing the plant's ability to photosynthesize effectively and impacting overall yield. Understanding this feeding behavior is crucial for implementing effective pest management strategies, as controlling larvae during their peak feeding times on leaves can help minimize crop damage and maintain healthy alfalfa production.