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Yellow Leaves

  • 13-08-2006 6:25pm
    #1
    Filan
    Closed Accounts Posts: 703 ✭✭✭


    Why have my tomatoe plants gone yellow? . Also some Busy Lizzie leaves are yellow also?. Maureen


Comments

  • #2
    Mrs. MacGyver
    Closed Accounts Posts: 1,294 ✭✭✭Mrs. MacGyver


    Hi Maureen, this is more appropriate to the gardening / Diy forum. In relation to your questionit could be tomato yellow top virus or bacterial wilt. I found this online

    BACTERIAL WILT
    Bacterial wilt or Southern bacterial blight is a serious disease caused by Ralstonia solanacearum (formerly Pseudomonas solanacearum). This bacterium survives in the soil for extended periods and enters the roots through wounds made by transplanting, cultivation or insects and through natural wounds where secondary roots emerge. Disease development is favored by high temperatures and high moisture. The bacteria multiply rapidly inside the water-conducting tissue of the plant, filling it with slime. This results in a rapid wilt of the plant, while the leaves stay green. If an infected stem is cut crosswise, it will look brown and tiny drops of yellowish ooze may be visible.

    Prevention and Treatment: Control of bacterial wilt of plants grown in infested soil is difficult. Rotation with nonsusceptible plants, such as corn, beans and cabbage, for at least three years provides some control. Do not use pepper, eggplant, potato, sunflower or cosmos in this rotation. Remove and destroy all infected plant material. Plant only certified disease-free plants. The varieties Neptune and Tropic Bay are partially resistant to bacterial wilt, but are uncommon varieties. Chemical control is not available against this disease


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