The preferred hosts of E. tracheiphila are in the cucurbit family (wild and cultivated species), of which cucumbers are “the most susceptible host, followed by. Erwinia tracheiphila is the causal agent of bacterial wilt of cucurbits, an economically important phytopathogen affecting few cultivated. E. tracheiphila induces severe wilting symptoms in many wild and cultivated cucurbits, especially cucumber (Cucumis sativa) and musk melon (Cucumis melo ).

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Cucurbits, Bacterial Wilt

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The pathogen overwinters in the digestive tracts of the spotted and striped cucumber beetles. Back to top Cucurbits, Bacterial Wilt.


The bacterium is transmitted mechanically by contact with contaminated mouthparts and does not reproduce within the beetle. Plant a tracheiphilx perimeter trap crop of Blue Hubbard squash to protect more susceptible crops. Continuing to use www.

Vegetable: Cucurbits, Bacterial Wilt | UMass Center for Agriculture, Food and the Environment

This is to ensure that we give you the best experience possible. Initially, wilting may be confined to a portion of a leaf but eventually spreads throughout the entire leaf, to other leaves on a branch and subsequently throughout the trafheiphila Walker, Bacterial wilt is caused by the bacterium Erwinia tracheiphila.

Topical Meetings and Workshops. Cucumber and muskmelon plants are most susceptible, but squash, pumpkins, and gourds may also become infected. When a plant is infected, E. Cucumber beetles must be controlled by appropriate insecticide programs. Sticky strand test on cut stems, with bacterial slime streaming from xylem tissues. Weather has little effect on the incidence of wilt, but may influence the rate of symptom expression. The expression of symptoms varies with the different crop species.

From Wikipedia, the free encyclopedia. Views Read Edit View history. The bacterium only affects plants belonging to the cucurbit family such as cucumbers, cantaloupes, melons, pumpkins, squash, gherkins, white gourds and a number of wild plants. APS copyright extends to images, text, graphics, photographs, illustrations, audio, video, computer software, and all other elements of the site. In other projects Wikimedia Commons.


This can be achieved by using contact or soil applied insecticides. The bacteria is capable of overwintering in the gut of its insect vectors. Some cucurbit cultivars are less susceptible than others, so it is beneficial to plant these cultivars. Close Find out more.

The first symptoms consist of dull-green patches that become progressively flaccid in sunny weather. Erwinia tracheiphila Smith Bergey et al. No resistance has been identified in melon.

Erwinia tracheiphila (Bacterial wilt of cucurbits)

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Wilt is most severe early in the season when the plants are rapidly growing.