'Candidatus Phytoplasma pyri'(PHYPPY)
Photos
For publication in journals, books or magazines, permission should be obtained from the original photographers with a copy to EPPO.
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.
Healthy pear tree cv. Abate Fetel.
Courtesy: L. Giunchedi, Universita degli Studi, Bologna (IT).
Pyrus communis 'Beurré Hardy' infected with pear decline
Courtesy: Paul Martens
Reddening of the foliage of trees with pear decline (left) and healthy tree (right).
Pear tree cv. Abate Fetel grafted on quince BA29 affected by pear decline.
Courtesy: L. Giunchedi, Universita degli Studi, Bologna (IT).
Nymphs of psyllid vectors (Cacopsylla sp.)
Courtesy: Monika Riedle-Bauer. Federal College and Research Institute for Viticulture and Pomology, Klosterneuburg (AT)
Pear decline (in September).
Courtesy: Monika Riedle-Bauer. Federal College and Research Institute for Viticulture and Pomology, Klosterneuburg (AT)
Pear decline (in September).
Courtesy: Monika Riedle-Bauer. Federal College and Research Institute for Viticulture and Pomology, Klosterneuburg (AT)
Pear decline (in September).
Courtesy: Monika Riedle-Bauer. Federal College and Research Institute for Viticulture and Pomology, Klosterneuburg (AT)
Pear decline (in September).
Courtesy: Monika Riedle-Bauer. Federal College and Research Institute for Viticulture and Pomology, Klosterneuburg (AT)
Pyrus communis 'Beurré Hardy' infected with pear decline
Courtesy: Paul Martens
Pear decline (in September).
Courtesy: Monika Riedle-Bauer. Federal College and Research Institute for Viticulture and Pomology, Klosterneuburg (AT)
Declining tree
Courtesy: Monika Riedle-Bauer. Federal College and Research Institute for Viticulture and Pomology, Klosterneuburg (AT)