Causal Agent:
Cucumovirus Cucumber mosaic virus (CMV)
| Characteristic Symptoms: | |
 |
Symptoms may vary depending on the virus strain, variety plant age at infection. |
|
Symptoms on young leaves are small green-yellow spots, which is initially slightly transparent and progresses into yellow mosaic with distorted leaf blade, reduced leaf size, shoe-stringing and stunted plants. |
|
In some varieties, ring spots can be observed on the lower leaves and fruits are wrinkled or may show necrotic marks. |
| Crops Affected | |
|
Solanaceous (tomato, pepper)
|
|
Cucurbits
|
|
Legumes
|
| Management and Control: | |
|
Use resistant/tolerant varieties, if available.
|
|
Remove infected plants as early as symptoms are observed to prevent/minimize spread.
|
|
Remove weeds that may serve as alternate hosts.
|
|
Control/minimize aphid population by using plastic mulch, insect traps and/or use of insecticides such as 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Ⓡ).
|
To view other diseases, click here.
Need more help? Ask the Doctor.
