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lavatera leaf spot

In recent years annual lavateras ('Silver Cup', 'Mont Blanc', 'White
Cherub', 'Beauty Mixed' etc) seem to have suffered more and more from leaf
spot disease. This is a slightly misleading name as the disease is carried
on seeds, and remians in the soil, and first attacks stems at ground level.
The end result is that growth sudeednly stops and the plant oftens turn
brown and collapses soon after. Sometimes the problem starts on one side of
the clump and spreads through the whole group.

Some, but not all, seed companies test their seed and treat it with a
fungicide if they find it to be infected. I wonder if people who have had
lavateras collapse on them could tell us from whom they bought the seed so
we can all buy our lavatera s elsewhere!
http://annualflowers.com
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