Causal Agent:
Comovirus (Cowpea mosaic virus )
| Characteristic Symptoms: | ||
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Leaves and pods of infected plants show mosaic, blisters and severe deformation | |
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Plants infected at early stage become stunted and leaves defoliate | |
| Transmission and Spread: | ||
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The virus is transmitted mechanically and by beetles. | |
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The virus is seed transmitted.
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| Management and Control: | ||
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Use virus-free seeds.
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Use resistant varieties, if available. | |
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Disinfect tools and farm implements with chlorine before moving from diseased areas to healthy areas
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Remove infected plants as early as symptoms are observed to minimize spread. |
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Remove weeds that serve as alternate hosts. | |
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Control beetle population by spraying insecticides such as imidacloprid (e.g. ConfidorⓇ), lambda-cyhalothrin (KarateⓇ, ForceⓇ), azadirachtin (neem), cartap hydrochloride (e.g. PadanⓇ, Barena 50 SP, Gemtrak®), acetamiprid (e.g. MospilanⓇ), acephate (e.g. AcetamⓇ, CompeteⓇ), chlorphenapyr (e.g. Kotetsu) or penthoate (e.g. PennantⓇ, VidexⓇ). | |
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