Last week, I mentioned the need to control broad-leaved weeds near cucurbit lands during winter to prevent virus carry-over.
It is also important to control aphids as these are the primary vectors of viruses. Apart from spreading viruses, they are up to no good anyway! Even if they don’t actually introduce the virus into the land, they will certainly spread it further once it takes hold.
Cucurbit viruses manifest as mottled and distorted leaves, and the disease develops more rapidly in younger plants.
Symptoms may appear a few days to two weeks after infection. On more established plants, the older leaves and fruit may be unaffected and only the new growth from specific points will display symptoms.
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26 January 2018