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| Erwinia tracheiphila ： ウィキペディア英語版 |
Bacterial wilt
Bacterial wilt is a cucurbit disease caused by the pathogen ''Erwinia tracheiphila'', a Gram-negative bacterium in the family Enterobacteriaceae. Cucumber and muskmelon plants are most susceptible, but squash, pumpkins, and gourds may also become infected. Watermelons are immune to the disease.
== Disease transmission ==
''E. tracheiphila'' is spread between plants by two species of insect vectors, Striped cucumber beetles (''Acalymma Vittatum'') and spotted cucumber beetles (''Diabrotica undecimpunctata''). The beetles acquire ''E. tracheiphila'' by feeding on infected plants, then carry the bacteria in their digestive tracts. The disease may be spread to susceptible plants through feeding wounds, by way of infected mouthparts or frass. The bacteria is capable of overwintering in the gut of its insect vectors.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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