Final diagnosis


Bacterial scabies (X. vesicatoria)

Plusieurs taches circulaires à légèrement angulaires, grisâtres en leur centre et brune en périphérie parsèment cette foliole de tomate. Parfois concentrées en bordure du limbe, elles sont auréolées d'un discret halo jaune. <b><i>Xanthomonas</i> sp.</b> (gale bactérienne, bacterial spot)
These more advanced brown spots on the tomato leaflet, with irregular contours, reveal a rather marked yellow halo. <b><i>Xanthomonas</i> sp.</b> (bacterial scabies, bacterial spot)
Xanthomonas-Tomate9
Brownish and longitudinal lesions on petioles. <b><i>Xanthomonas</i> sp.</b> (bacterial scabies, bacterial spot)
Broad brownish patches, longitudinal, caused by <b><i>Xanthomonas</i> sp.</b> on tomato stem. (bacterial scabies, bacterial spot)
Brownish alteration and extents on tomato petiole. <b><i>Xanthomonas</i> sp.</b> on tomato stem. (bacterial scabies, bacterial spot)
A few small brown to black spots dot the sepals of these two green tomato fruits. <b><i>Xanthomonas campestris</i> pv. <i>vesicatoria</i></b> (bacterial scabies, bacterial spot)
Detail of small brown canker lesions on green fruit. <b><i>Xanthomonas</i> sp.</b> (bacterial scabies, bacterial spot)
The lesions have coalesced in places, and are sometimes surrounded by a dark fatty halo. <b><i>Xanthomonas</i> sp. </b>(bacterial scabies, bacterial spot)
Many small brown canker lesions partially cover this green fruit. <b><i>Xanthomonas</i> sp.</b> (bacterial scabies, bacterial spot)
The lesions are suberized and cracked, some fusing to others. <b><i>Xanthomonas</i> sp. </b>(bacterial scabies, bacterial spot)
Eventually, the lesions are suberized and cracked (a symptom reminiscent of apple scab spots), and some tend to assimilate to others. <b><i>Xanthomonas</i> sp. </b>(bacterial scabies, bacterial spot)
Appearance of <b><i>Xanthomonas</i> sp.</b> spots on fruit at turning stage. (bacterial scabies, bacterial spot)
Piment-Plante
These pepper leaves show many brown spots located on the blade or concentrated on the periphery of the latter. <b><i>Xanthomonas</i> sp.</b> (bacterial scabies, bacterial spot)
Numerous lesions caused by <b><i>Xanthomonas</i> sp.</b> on pepper leaves. Note their distribution on the blade: between and on the veins and on its periphery. (bacterial scabies, bacterial spot)
Xanthomonas-Poivron2
Rare lesions caused by <b><i>Xanthomonas</i> sp.</b> on pepper leaves. (bacterial scabies, bacterial spot)
Xanthomonas-Poivron4
Xanthomonas-Poivron6
On the leaf blade, the spots are irregular, sometimes partially angular, moist and blackish in color, gradually becoming necrotic. Sometimes concentrated at the edge of the blade, they are surrounded by a more or less marked yellow halo. <b><i>Xanthomonas</i> sp.</b> (bacterial scabies, bacterial spot)
Lesions caused by <b><i>Xanthomonas</i> sp.</b> on pepper leaf. These, atypical, quickly spread on the leaf blade with succulent tissues due to the presence of water. Damaged, moist, dark brown to black leaf tissue is broken down in places and may fall off. (bacterial scabies, bacterial spot)
Appearance of the spots on the underside of the leaf blade: they always appear irregular in shape, wet in appearance and blackish in color, haloed by a more diffuse yellow halo. <b><i>Xanthomonas</i> sp.</b> (bacterial scabies, bacterial spot)
Spots at the start of development on the green pepper fruit. <b><i>Xanthomonas</i> sp.</b> (bacterial scabies, bacterial spot)