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yellow leaf


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Old 02-23-2014, 10:08 PM
airdalecv66 airdalecv66 is offline
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Default yellow leaf

Hi, new to forum, greenhouse (fully hydroponic) is 40' X 90' x 25' peak roof, with 850 month old tomato's. starting to show slight signs of 'yellow' leaf on some of the plants, research indicates lack of iron ? also doing self pollination, would blue nose fly do a better job than 100 bumble bee's ?

Thanks for any and all idea's.


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Old 02-25-2014, 06:20 AM
GpsFrontier GpsFrontier is offline
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I think you are referring to blue bottle fly's. I don't think they would be better than bumble bees, but they would complement the work the bumble bees are doing. Also good air circulation would help a great deal for pollination too. How are you dong/monitoring your nutrient solution? Have you changed it yet? Are you replacing the nutrients/elements the plants deplete from it? If so what are you adding and how much? Also what size is your reservoir.
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Old 02-26-2014, 09:37 AM
airdalecv66 airdalecv66 is offline
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Default yellow leaf gone

Thanks for the reply, yellow leaf problem has cleared up, reservoir is 300 gal.
plants are doing great. (bumble bee's arrive today).
again, thanks.


Last edited by airdalecv66; 02-26-2014 at 09:59 AM.
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