youtor.org
Oak slug sawfly larvae
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The oak slug sawfly, or scarlet oak sawfly, is a common pest of red oak species, especially pin and scarlet oak trees. These sawfly larvae feed on the lower layer of the leaf, leaving behind the upper epidermal layer and creating a distinctive window pane effect. This pest can cause premature leaf drop and completely skeletonized oak leaves. While generally considered an aesthetic problem, repeated infestations can lead to reduced tree vigor and health. • This up-close video showcases the pale yellow-green, slimy larvae that grow to about 1 inch when mature. The oak slug sawfly can have multiple generations and emerge when leaves are fully expanded in the spring. If you notice this pest on your oak trees, it's important to take action to prevent damage. Learn more about our insect and disease management services at https://www.bartlett.com/insect-and-d....
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