Blister Formed by Phytoptus Pyris by Leaf

| View Cart ⇗ | Info

In the middle of the blister, on its lower surface, is a small opening, which permits the gall mites (phytoptus pyris) to pass out of the blister. The cells in the middle of the leaf are torn apart.

Source

Nicholson, George The Illustrated Dictionary of Gardening, Div. VI (London, England: L. Upcott Gill, 1884)

Downloads

TIFF (full resolution)

2400×939, 519.3 KiB

Large GIF

1024×400, 90.6 KiB

Medium GIF

640×250, 47.1 KiB

Small GIF

320×125, 16.3 KiB