Artichoke Galls on Pedunculate Oak
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Artichoke Galls on Pedunculate Oak
Artichoke Galls on Pedunculate Oak (Quercus rubus). Flower buds infected by the gall wasp Andricus fecundator. In spring the female gall wasp lays single eggs in buds of the Pedunculate oak. The presence of the larvae, once hatched, triggers the buds to swell and develop into what are known as artichoke galls (centre and centre left). Each larva is within a central hard gall that comes out of the swollen bud and drops to the ground in late summer. The gall wasps that emerge in the spring are all female. The small saucer-shaped galls under the leaf in the background (top left) are silk button spangle galls caused by another gall wasp, Neuroterus numismalis
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6306403
© ADRIAN BICKER/SCIENCE PHOTO LIBRARY
Arthropod Arthropoda Arthropods Buds Deciduous Diseased English Oak Flower Bud Galls Infected Infection Insecta Larval Parasite Parasites Parasitic Parasitism Parasitology Parts Pedunculate Oak Re Production Reproductive Part Spring Structures Abnormal Condition Disorder Unhealthy
EDITORS COMMENTS
This print showcases the intricate beauty of nature's creations. The image captures a close-up view of Artichoke Galls on a Pedunculate Oak, revealing the fascinating life cycle of gall wasps and their impact on the tree. In spring, the female gall wasp lays single eggs within the buds of the Pedunculate oak. As these eggs hatch into larvae, they trigger the buds to swell and develop into unique artichoke galls at the center and center left of the image. Each larva resides within a hard gall that eventually drops to the ground in late summer. The presence of silk button spangle galls under a leaf in the background (top left) adds another layer to this intricate ecosystem. These saucer-shaped galls are caused by another type of gall wasp known as Neuroterus numismalis. This photograph not only highlights stunning natural structures but also provides insight into parasitic relationships between insects and plants. It offers an opportunity for viewers to appreciate both botanical and entomological wonders while contemplating concepts such as reproduction, infection, disease, and parasitism. With its rich detail capturing every aspect from infected flower buds to diseased leaves, this print is a testament to Science Photo Library's expertise in showcasing biological marvels found in our environment.
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