OAK - apple galls, caused by the Oak Apple Gall wasp (Biorhiza pallida). The oak apple gall wasp (Biorhiza pallida) lays her eggs in a leaf bud. Chemicals are then produced by the larvae, which makes the tree tissues grow in a very specific way. An apple-like growth is formed, within which there is approximately 30 chambers, each with a larva inside. The adults emerge in June / July.

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TOP23494216

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達志影像

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