No, I haven't met these. I would imagine that you need a systemic treatment if they are hidden inside the stalks. Some people on this site wouldn't use chemicals like this for love or money, so you might want to wait and see what others say before you act. I do use it very occasionally. Good luck!
i bought 5 healthy cosmos plants from a local garden centre and put them straight into the garden. The weather had been warm and they have been well watered but two have just died. I am at a loss to know why? Any ideas?
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No, I haven't met these. I would imagine that you need a systemic treatment if they are hidden inside the stalks. Some people on this site wouldn't use chemicals like this for love or money, so you might want to wait and see what others say before you act. I do use it very occasionally. Good luck!
i bought 5 healthy cosmos plants from a local garden centre and put them straight into the garden. The weather had been warm and they have been well watered but two have just died. I am at a loss to know why? Any ideas?