MySheen

Ring spot disease of geranium

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, [pathogen] Tobacco ringspot virus (Tobaccoringspotvirus,TomRSV), lethal temperature 58 ℃, geranium ringspot virus (prlargoniumringspotvirus,PRSV), lethal temperature 85 ℃. [symptoms] the leaves showed chlorotic maculae, ringspots and lines, the plant growth was short, and the flower development was abnormal. [incidence regularity and epidemic characteristics] selection of cuttings from diseased plants is the main way of virus transmission. Juice

[pathogen] Tobacco ringspot virus (Tobaccoringspotvirus,TomRSV), lethal temperature 58 ℃, geranium ringspot virus (prlargoniumringspotvirus,PRSV), lethal temperature 85 ℃.

[symptoms] the leaves showed chlorotic maculae, ringspots and lines, the plant growth was short, and the flower development was abnormal.

[incidence regularity and epidemic characteristics] selection of cuttings from diseased plants is the main way of virus transmission. Sap and grafting can also transmit poison. TRSV,TOMRSV can also be transmitted by soil nematodes and seeds.

[prevention and control measures] A. The healthy plant was selected as the breeding mother plant. Remove the diseased plant in time and destroy it. b. The operating tools used for pruning should be disinfected to avoid spreading the virus. c. The virus was inactivated or the virus-free strain could be obtained by stem tip tissue culture when the diseased plant was treated at 37 ℃ for 4 weeks.

 
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