Globular hickory galls of Phylloxera, a sap-sucking insect related to aphids, on hickory leaves. Galls are abnormal plant growths, many of which are stimulated by the activity of insects and mites, and which serve as protective enclosures for their larvae. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Matulavich, Peter |
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Länge: | 21 Sekunden |
Seitenverhältnis: | 4:3 |
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