PHOTO GALLERY SYMPTOMS ASSOCIATED WITH XYLELLA FASTIDIOSA
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1 PHOTO GALLERY SYMPTOMS ASSOCIATED WITH XYLELLA FASTIDIOSA INFECTIONS IN DIFFERENT HOST PLANTS IN APULIA (ITALY) Prepared by CNR-INSTITUTE FOR SUSTAINABLE PLANT PROTECTION, BARI (ITALY) Version 1.0 December 2017
2 Bacterial infections in Apulia have been found associated with Xylella fastidiosa subspecies pauca - sequence type ST53 OLIVE QUICK DECLINE SYNDROME
3
4 Dessication reproduced in greenhouse on Xfinoculated olive plants Shoot dieback on Xf-inoculated olive plants in greenhouse
5 Scorch symptoms
6 Wilting and dieback 6
7 7 Olive trees showing quick decline syndrome at advanced stage 05/01/2018
8 Extensive dessication on young tree
9 9 Olive trees showing quick decline syndrome at advanced stage 05/01/2018
10 10 Olive trees showing quick decline syndrome at advanced stage 05/01/2018
11 11 Olive trees showing quick decline syndrome at advanced stage 05/01/2018
12 Olive trees showing quick decline syndrome at advanced stage 12
13 Olive trees showing quick decline syndrome at advanced stage
14 LEAF SCORCH SYMPTOMS ON INFECTED OLEANDER (NERIUM OLEANDER)
15 LEAF SCORCH SYMPTOMS ON XF-INFECTED OLEANDER (NERIUM OLEANDER)
16 LEAF SCORCH SYMPTOMS ON XF-INFECTED OLEANDER (NERIUM OLEANDER) Yellowing and chlorosis observed on artificial inoculated plants in greenhouse
17 DESSICATION AND DECLINE ON XF-INFECTED OLEANDER (NERIUM OLEANDER)
18 LEAF SCORCH SYMPTOMS ON XF-INFECTED OLEANDER: INITIAL MARGINAL LEAF CHLOROSIS (LEFT), FOLLOWED BY NECROSIS (RIGHT)
19 ALMOND(PRUNUS DULCIS) LEAF SCORCH AND BROWNING
20 Symptoms observed in July-August
21 Symptoms observed in July-August
22 Symptoms observed in July-August
23 Symptoms observed in July-August
24 Symptoms observed in July-August
25 Symptoms observed in July-August
26 Symptoms observed in July-August
27 CHERRY (PRUNUS AVIUM) LEAF SCORCH AND BROWNING Symptoms observed in June
28 Leaf scorch symptom affecting a branch, with upward-curling leaves Symptoms observed in late July
29 Symptoms scored in August
30 MYRTLE LEAF MILKWORT (POLYGALA MYRTIFOLIA) LEAF SCORCH TWIG DESICCATION
31 Leaf scorch symptoms and shoot dieback on Xf-inoculated plants grown in greenhouse
32 Leaf scorch symptoms and shoot dieback on Xf-inoculated plants grown in greenhouse
33 SYMPTOMS ON OTHER HOSTS
34 WESTRINGIA FRUTICOSA Yellowing and dessiccation
35 ACACIA SALIGNA Dessication of branches August 2014
36 ACACIA SALIGNA Rapid progression of the symptoms August 2014 March 2016
37 ACACIA SALIGNA Extensive dessication August 2014
38 ACACIA SALIGNA The tree died rapidly and was removed March 2016
39 SPARTIUM JUNCEUM Extensive dessication
40 ROSMARINUS OFFICINALIS Leaf scorch symptoms
41 MYRTUS COMMUNIS Yellowing and foliage dessication
42 CISTUS CRETICUS Dessication phenomena
43 LAURUS NOBILIS Leaf scorch symptoms
44 DODONEA VISCOSA PURPUREA Extensive dessication
45 LAVANDULA ANGUSTIFOLIA Extensive dessication
46 GREVILLEA JUNIPERINA Leaf scorch symptoms and dieback
47 PHILLYREA LATIFOLIA Leaf scorch symptoms
48 PHILLYREA LATIFOLIA Leaf scorch symptoms and dessication
49 PHILLYREA LATIFOLIA Leaf scorch symptoms
50 EXAMPLES OF ASYMPTOMATIC HOSTS
51 RHAMNUS ALATERNUS
52 VINCA SPP.
53 EUPHORBIA TERRACINA
54 ASPARAGUS ACUTIFOLIUS
55 WESTRINGIA GLABRA
56 MYOPORUM INSULARE
57 OLIVE QUICK DECLINE SYNDROME PROGRESSION OF THE SYMPTOMS ON THE INFECTED TREES
58 PROGRESSIVE STAGES OF THE OLIVE QUICK DECLINE SYNDROME
59 Typical withered and chlorotic leaves representing the initial stage of the dessication phenomena
60 2010
61 2013
62 October 2013
63 April 2016
64 April 2014
65 June 2015
66 Initial symptoms of desiccation on few scattered branches «Gigante di Alliste» (Lecce, Italy), 1,500 years old olive tree. September 2014
67 Progression on the canopy of the desiccation phenomena «Gigante di Alliste» (Lecce, Italy), 1,500 years old olive tree. September 2015
68 Severe desiccation «Gigante di Alliste» (Lecce, Italy), 1,500 years old olive tree. July 2016
69 SYMPTOMS ASSOCIATED WITH XYLELLA FASTIDIOSA INFECTIONS IN DIFFERENT HOST PLANTS IN APULIA (ITALY) This slideshow presentation was prepared in the framework of the H2020 research Projects: Version 1.0 December 2017
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