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Old 02-15-2008, 11:28 AM
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Nitrogen deficiency? Aphids?

3 week old seedlings in well draining soil, only VERY lightly fed with 24:8:16 ferts twice. 400w HPS is used, temp 75 - 80f. Watered only when soil is very dry; water ph ~6.5. Plants are in large Solo cups.

Observed small flies jumping out of the soil, could be aphids not sure.

Symptoms occur ONLY on the lower leaves, turning yellow uniformly and drooping. Top of plants are green and vigorous.
 
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