Cassava brown Specific virus diseases can rarely Effective management depends on developing Chemical vector control (white flies Bemisia tabaci) streak disease be diagnosed on the basis of resistant varieties and making clean planting material available (CBSD) visible symptoms alone. Insecticidal soaps and oils, neem Cassava brown streak Symptoms may include mild to Once the virus is present in the viruses moderate growth reduction, mild plant there is no way to control the chlorosis or mottling, pale spots disease or veins and leaf deformities.The Cassava mosaic leaf symptoms are mild but a dry disease (CMD) brownish rot makes tubers unfit for eating and sale. CBSD occurs alongside cassava mosaic disease Viruses (CMD), another major threat to production caused by a different type of virus. Both diseases are spread by whiteflies and in infected planting material. The disease is introduced in Cassava bacterial Varieties with good tolerance to the disease are available There is no chemical treatment for symptomless cuttings which fail blight controlling the disease. Once the disease is present, careful cleaning of tools will limit to grow. The bacteria are then Xanthomonas spread to healthy plants while animal and human movement within spread by rain splash and physical axonopodis pv. manihotis the crop should be restricted to prevent physical transfer of contact. bacteria. The disease spreads less rapidly during dry periods. Cutting out most of the above ground stems of infected plants may limit losses in varieties with some resistance to the disease, but success also depends on how long the plant has been infected and the spread of the bacteria within the plant.
Cassava brown streak disease (CBSD) Cassava brown streak viruses Cassava mosaic disease (CMD) Viruses Specific virus diseases can rarely be diagnosed on the basis of visible symptoms alone. Symptoms may include mild to moderate growth reduction, mild chlorosis or mottling, pale spots or veins and leaf deformities.The leaf symptoms are mild but a dry brownish rot makes tubers unfit for eating and sale. CBSD occurs alongside cassava mosaic disease (CMD), another major threat to production caused by a different type of virus. Both diseases are spread by whiteflies and in infected planting material. Effective management depends on developing resistant varieties and making clean planting material available Chemical vector control (white flies Bemisia tabaci) Insecticidal soaps and oils, neem Once the virus is present in the plant there is no way to control the disease Cassava bacterial blight Xanthomonas axonopodis pv. manihotis The disease is introduced in symptomless cuttings which fail to grow. The bacteria are then spread by rain splash and physical contact. Varieties with good tolerance to the disease are available Once the disease is present, careful cleaning of tools will limit spread to healthy plants while animal and human movement within the crop should be restricted to prevent physical transfer of bacteria. The disease spreads less rapidly during dry periods. Cutting out most of the above ground stems of infected plants may limit losses in varieties with some resistance to the disease, but success also depends on how long the plant has been infected and the spread of the bacteria within the plant. There is no chemical treatment for controlling the disease.