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Image Subject Name Scientific Name Description
0176025 Squash Mosaic Virus Comovirus SqMV Symptoms on a melon seedling following seed transmission.
0660023 bacterial blight Xanthomonas arboricola pv. corylina On a layered hazel shoot in the process of rooting, dieback after necrosis of a new lateral shoot, due to Xanthomonas campestris pv. corylina.
0660024 bacterial blight Xanthomonas arboricola pv. corylina In orchard, on a 3-year-old hazel tree, dieback of several 1- and 2-year-old shoots starting from localized necrosis on buds or new lateral shoots, due to Xanthomonas campestris pv. corylina
0656033 Tomato Spotted Wilt Virus Tospovirus TSWV Tomato fruit infected by tomato spotted wilt tospovirus, with large paler areas.
0656035 Tomato Spotted Wilt Virus Tospovirus TSWV Coalesced paler ring spots with necrotic border induced by tomato spotted wilt tospovirus on mature fruit of capsicum.
0656036 Tomato Spotted Wilt Virus Tospovirus TSWV Chlorotic spots on young leaves of gloxinia due to tomato spotted wilt tospovirus.
0176092 bacterial dieback of peach Pseudomonas syringae pv. persicae Superficial necrotic spot on young peach fruit. Presence of a gummy mass
0656034 Tomato Spotted Wilt Virus Tospovirus TSWV Chlorotic sinuous lines and concentric rings on leaf of capsicum due to tomato spotted wilt tospovirus.
0454011 bacterial blight Pseudomonas savastanoi pv. glycinea Symptoms of Pseudomonas syringae pv. glycinea on soybean leaf later in the season, showing necrotic lesions with chlorotic halos.
0656037 Tomato Spotted Wilt Virus Tospovirus TSWV Tomato spotted wilt tospovirus damage on New Guinea impatiens plants (right).
0454010 bacterial blight Pseudomonas savastanoi pv. glycinea Early symptoms of Pseudomonas syringae pv. glycinea on soybean leaflet.
0746051 stubborn, little leaf Spiroplasma citri Sweet orange tree infected by Spiroplasma citri (left), causal agent of stubborn, showing stunting as compared to the healthy tree (right). Note the rounded shape of the infected tree.
0746052 stubborn, little leaf Spiroplasma citri Lobsided fruit from a sweet orange tree infected by Spiroplasma citri. Thickening of the albedo at the peduncular end can be observed while the albedo at the stylar end is very thin.
0746033 stubborn, little leaf Spiroplasma citri Sweet orange tree infected by Spiroplasma citri. Note rosettes of cup-shaped leaves and the presence of off season flowers and fruit at all stages of maturation.
0746034 stubborn, little leaf Spiroplasma citri Normal seeds from a healthy fruit (upper row); partially aborted seeds from a Spiroplasma citri infected fruit (lower row).
0725010 bacterial wilt Burkholderia caryophylli Stem canker in carnation caused by Burkholderia (Pseudomonas) caryophylli.
0725007 bacterial wilt Curtobacterium flaccumfaciens pv. flaccumfaciens Leaf symptoms of Curtobacterium flaccumfaciens pv. flaccumfaciens on French beans (Phaseolus vulgaris).
0660078 Plum Pox Virus Potyvirus PPV Plum pox potyvirus: spots on apricot stones.
0660072 Plum Pox Virus Potyvirus PPV Plum pox potyvirus: yellow rings on a yellow-fleshed peach cultivar.
0660073 Potato Spindle Tuber Viroid Pospiviroid PSTVd Potato spindle tuber viroid: reduced size and yield of potato tubers (healthy tubers on right).
0660074 Beet Necrotic Yellow Vein Virus Benyvirus BNYVV Beet necrotic yellow vein furovirus: abnormal root development (rhizomania) in beet.
0660052 Beet Necrotic Yellow Vein Virus Benyvirus BNYVV Systemic symptoms of beet necrotic yellow vein furovirus infection on sugar beet leaves.
0660051 Beet Necrotic Yellow Vein Virus Benyvirus BNYVV Longitudinal section of sugar beet root infected by beet necrotic yellow vein furovirus, showing browning of the vascular tissues.
0660036 bacterial dieback of peach Pseudomonas syringae pv. persicae Typical necrosis, due to Pseudomonas syringae pv. persicae, developing in early winter around dormant buds on young peach shoots
0660037 bacterial dieback of peach Pseudomonas syringae pv. persicae Leaf spots on peach in spring, due to Pseudomonas syringae pv. persicae.
0177004 Beet Necrotic Yellow Vein Virus Benyvirus BNYVV Characteristic rootlet proliferation, or rhizomania, due to beet necrotic yellow vein furovirus in sugar beet.

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