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disease resistance

Posted by suekas z5NY (My Page) on
Thu, Feb 17, 05 at 14:40

Which impatients are the most resistant to dampening off. I have had trouble with some of the pastel colors (especiallly, purples and light pinks), and with double flower varieties. I have used fungicides and switched out the soil. When I go back to plain red colors, they seem to do fine. Any suggestions?

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RE: disease resistance

Use a good quality seed starting mixture. Water the soil carefully and let it drain. Then sow your seeds. Cover with plastic and keep humidity high and temperature consistant (70-75F).

Damping off in my experience happens to impatiens most often if you vary the temperatures, use high fertilizer in the growing media or keep the media too wet/saturated. It should be consistently moist - and never be allowed to dry out - but if you use too heavy a mixture of keep it too wet, germination is problem and damping off a bigger problem.

My big trouble is double flowered impatiens. I almost always end up with damping off.

RE: disease resistance - sorry forgot

Ok, I forgot:
- For types/varities which I have had problems with I do this:

I divide the seeds in 3 lots and start them in 3 seperate containers. This cuts down on "loss".

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