Final diagnosis


Ralstonia solanacearum (Bacterial wilt )

The bacteriosis is now well established on this seedling which has completely withered and will soon dry out. <b> <i> Ralstonia solanacearum </i> </b> (bacterial wilt)
Wilt caused by <b> <i> Pseudomonas </i> sp. </b>
Bacterial wilt is just starting to show up on this tomato seedling. A single leaf shows marked wilting. <b> <i> Ralstonia solanacearum </i> </b> (bacterial wilt)
Ralstonia1
Ralstonia2
This adult plant, like seedlings affected by <b> <i> Ralstonia solanacearum </i> </b>, eventually wilted completely (bacterial wilt).
A longitudinal cut in the lower part of the stem shows that we are indeed in the presence of a vascular disease. The vessels are yellowish and begin to brown in places. <b> <i> Ralstonia solanacearum </i> </b> (bacterial wilt)
The vessels are also affected. Here we see very brown streaks of vessels. The pith is moist and brownish in places. <b> <i> Ralstonia solanacearum </i> </b> (bacterial wilt)
More localized vascular browning is also observed in the upper part of the stem. <b> <i> Ralstonia solanacearum </i> </b> (bacterial wilt)
The "glass of water test" exuded a viscous bacterial yarn (<i> Ralstonia solanacearum </i> - Bacterial wilt)