Pseudomonas syringae pv. tomato
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Pseudomonas syringae pv. tomato (Okabe, 1933) Young, Dye & Wilkie, 1978 - (bacterial speck of tomato)
The pathovar causes a wide-spread and economically important disease of tomatoes. The symptoms are characterized by small black lesions (about 3 mm large) on leaves and fruits, often with a discrete yellow halo. The disease is prevalent under cool and moist conditions. Young plants seem to be especially susceptible.
The pathogen disperses through contaminated seeds or by rain splashes. In the latter case it enters the host plant through stomata or small wounds. Control methods include resistant varieties, sanitation, disease-free seeds and the use of bactericides.
The page Pseudomonas syringae gives a general overview of the biology of this bacterium.
|• Deutsch:||Bakterielle Blatt- und Fruchtfleckenkrankheit der Tomate|
|• English:||tomato bacterial speck|
|• Español:||tizón bacteriano del tomate|
|• Français:||taches noires de la tomate|
|• Português:||pinta bacteriana do tomateiro|