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Iron deficiency in citrus
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Posted by bonsaist Z6/pa (My Page) on Wed, May 31, 06 at 7:45
All my potted citrus have pale leaves, you can see green veins in the leaves, and are yellow. I researched that and I understand that it's iron deficiency and possibly ph is too high for it. I guess the water in our area is alkaline.
Is there any other reason why the citrus leaves get so pale? they do get full sun, even in winter.
Any good treatment for it?
Thanks.
Bass |
Follow-Up Postings:
RE: Iron deficiency in citrus
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Bass, buy a box or bottle of Iron sulphate or iron chelate. Apply 3 times a year. This is not to be used in substitute for fertilizer. After the problem is resolved, apply again as a preventative.
I've never tried liquid Ironite, but it may work as good as the powder. Your problem is an easy one, Bass. Leaves can pale for many reasons like insects, or other mineral definciencies. But since the veins are deep green it's probably an iron problem.Try the iron and see what happens..Toni |
RE: Iron deficiency in citrus
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- Posted by tapla z5b-6a MI (My Page) on
Wed, May 31, 06 at 18:01
| Hi, Bass. Problem may not be THAT easily corrected, just by reaching for the Fe. I'm sure your soils drain well, just by looking at your handle. The reason I mention it (drainage) is because in saturated soils that drain poorly, low oxygen levels cause iron and manganese to become electron acceptors. This leads to their precipitation (iron and manganese) and, even though these elements might be present in soils, the plant’s inability to assimilate them. Fe, Mo(molybdenum), and Mn (manganese) can all cause interveinal chlorosis. Iron deficiencies are also caused by too much Ca in soil and high media pH (from dissolved carbonates in your water? Iron additives won't likely help here.) Iron deficiencies are most readily seen in interveinal chlorosis of new leaves which will also often turn very light. Al |
RE: Iron deficiency in citrus
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| You can also try some Miracle-Grow Acid type fertilizer ( formerly Miracid). May transiently help with pH issues that could interfere with uptake (as well as provide a little iron--won't hurt :). Tap water is often slightly basic so that it doesn't precipitate out goodies from the pipes for us to ingest. Yummy. |
RE: Iron deficiency in citrus
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I have difficulty understanding what Tapla is saying.
Anybody wants to interpret what he is saying? |
RE: Iron deficiency in citrus
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I think hes basically saying that the iron and manganese have become "locked" in the soil. Even though they are present they are not available for the plants use. This would happen if the soil was too alkaline or too acid.
Andi Heres a good link that explains it better |
Here is a link that might be useful: Soil pH
RE: Iron deficiency in citrus
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I have tried chelated Iron on leaves onces... It causes a dark stain on the leaves.
I applied aluminium solphate, (it looks almost like salt), directly to container soil.
Tapla, I diffinitly use well drained soil on all my containerized trees. Bonsai, Citrus, Figs. I try to avoid peat moss it's too wet, even though it is helpful with lowering ph in citrus and azaleas. Bass |
RE: Iron deficiency in citrus
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Thanks Andi.
That helps a lot. |
RE: Iron deficiency in citrus
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| Bass, I reccommend using Iron dirctly in soil, not on leaves..I've never tried a foliar iron spray, but thanks for the warning.. |
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