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If possible, remove host weeds but the host range for CMV is over 1200 species.
When possible, do not plant in previously infected areas. Common crop hosts are spinach, pepper, celery, tomato and lettuce.
Sanitize tools and machinery. The virus is mostly aphid transmitted but can be transmitted between plant with tools.
Try to plant in areas which do not suffer so greatly from aphids.
Monitoring
Check plants approx. 7 days after planting for aphids
Check for ants as this may be a sure sign that aphids are present
Symptoms include: stunting of plants, narrowing, curling downwards and mottling of leaves, and distorted and greyish looking fruit
Take action when you see 7 or more aphids per plant
Direct Control
There is no known control for viruses. Control of aphids is necessary as it is the main vector for CMV.
Remove diseased plants from the field by placing in a plastic bag before removing from the field and disposing of them. There is nothing to be gained by only removing those parts showing symptoms.
Leave bag in direct sunlight to kill aphids.
Direct Control
Restrictions
PPE should be worn when applying pesticides
Rotate chemicals (change them frequently) to prevent resistance from building up in the insect population
