EPPO Global Database

Phytoplasma pyri(PHYPPY)

Photos

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For publication in journals, books or magazines, permission should be obtained from the original photographers with a copy to EPPO.

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Pear tree cv. Abate Fetel grafted on quince BA29 showing little terminal growth with sparse ligth green and slightly rolled leaves (spring symptoms).

Courtesy: L. Giunchedi, Universita degli Studi, Bologna (IT).

Pear tree cv. Abate Fetel grafted on quince BA29 affected by pear decline. In the background: an healthy tree.

Courtesy: L. Giunchedi, Universita degli Studi, Bologna (IT).

Three year-old Conference pear tree grafted on Quince A showing premature yellow-reddish leaf coloration.

Courtesy: L. Giunchedi, Universita degli Studi, Bologna (IT).

Pear tree cv. Abate Fetel grafted on quince BA29 showing little terminal growth with sparse light green and slightly rolled leaves (spring symptoms).

Courtesy: L. Giunchedi, Universita degli Studi, Bologna (IT).

Pear tree cv. Abate Fetel grafted on quince C showing abnormal and early red leaf discoloration.

Courtesy: L. Giunchedi, Universita degli Studi, Bologna (IT).

William pear tree grafted on Kirchensaller showing the 'quick decline' form of pear decline phytoplasma.

Courtesy: L. Giunchedi, Universita degli Studi, Bologna (IT).

Japanese pear (nashi) cv. Hosui showing enlarged vein with leaf curl induced by pear decline.

Courtesy: L. Giunchedi, Universita degli Studi, Bologna (IT).

Pear tree showing severe symptoms of decline.

Courtesy: Biologische Bundesanstalt (DE).

Three year-old Conference pear tree grafted on Quince A showing premature yellow-reddish leaf coloration.

Courtesy: L. Giunchedi, Universita degli Studi, Bologna (IT).

Nursery of 1 year-old pear trees (cv. Butirra Precoce Morettini). In the center: pear decline infected trees showing reddening of the leaves; healthy trees on left and right.

Courtesy: L. Giunchedi, Universita degli Studi, Bologna (IT).

Reddening of the laminar tissue of tree with pear decline.

Reddening of the foliage of trees with pear decline (left) and healthy tree (right).

Healthy pear tree cv. Abate Fetel.

Courtesy: L. Giunchedi, Universita degli Studi, Bologna (IT).

Pear tree cv. Abate Fetel grafted on quince BA29 affected by pear decline.

Courtesy: L. Giunchedi, Universita degli Studi, Bologna (IT).