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Black spots on orange leaves

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LoveFruits starts with ...
Hello,
I used the Iron sulphate to correct YELLOW leaves on pumello, the remain of solution I sprayed on the healthy orange. The nextday the BALCK DOTS were noticed on the young leaves of the orange and the tree seemed stop growing. Is there any thing I can do to make the orange healthy again? Thank you
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ThanhT
Fairfield NSW
22nd September 2012 9:34am
#UserID: 7261
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amanda says...
You can't fix these spots now :-( Just make sure you keep the solution mixed throughout the spraying next time - as it can settle as a sediment - maybe this is why the last tree got burnt? :-(
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amanda19
Leschenault (160kms south of Perth)
22nd September 2012 11:18am
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GardeningAustraliaWannabee says...
Iron sulphate as a foliar spray is useless on citrus. The stomates will not absorb the iron. Use iron chelates applied to the soil.
Iron sulphate burns. It is used in granular weed and feed products for that very reason.
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GardeningAustraliaWannabee
 
22nd September 2012 7:11pm
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amanda says...
That's true GAW...didn't note that (was thinking Iron chelates) oops.
Iron sulphates are not meant to be sprayed on foliage at all hey...?
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amanda19
Leschenault (160kms south of Perth)
23rd September 2012 10:52pm
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