tangelos (forum)

peter starts with ...
i am having trouble growing minneola tangelos. the first ones leaves fell off and it died. the second one has lost a lot of leaves and the remaining leaves are pale green and yellow.i was told it was a lack of nitrogen so i applied nitrogen and it didnt work. can anyone help?i live in adelaide

Time: 4th June 2009 5:15pm

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Jimmy says...
Sounds like lack of water, magnesium, iron or zinc deficiency so use a mixed trace element powder.

Time: 4th June 2009 5:48pm

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amanda says...
peter - have u done a pH test on your soil? (top and sub soil)

Time: 4th June 2009 6:04pm

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Julie says...
My Seville orange had the same problem a while ago. It was magnesium, and Epsom salts did the trick.

To be sure of what it needs, Google 'citrus nutrient deficiencies pictures'.Iron and zinc deficiencies have quite distinct markings on the leaves, not just yellowing.

Time: 4th June 2009 6:40pm

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amanda says...
Peter - Julie is correct because if u have alkaline soil then u need to watch for Zinc, Iron and Manganese chlorosis.

It's very important to pH test your soil to determine these things otherwise u r running 'blind'

If you don't have alkaline soil - then it may be a case of adding too much fertiliser (and then not enuf' water)and u have shocked it - or your tree needs a lot more water than u are giving it. Dig down 5cm and see if the soil is moist.

A great book (if u are up for it!?) is Kevin Handrecks "Gardening down under". He takes the 'science' out of soil science..!

Is it in a pot or the soil?

Time: 4th June 2009 9:00pm

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peter says...
it is in the soil

Time: 5th June 2009 12:56am

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peter says...
julie i had a look at the website you mentioned and the closest to my tree was lack of copper. is this common? and how do i treat it?

Time: 5th June 2009 1:28am

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Julie says...
This is puzzling - are you sure? Copper deficiencies usually show up as dark green leaves, whereas you mention yellowing of leaves.

There is more than one website, the Google thing was just a suggestion. Maybe check again. If you DO need copper, you can buy copper sulphate or copper oxychloride in nurseries or hardware stores.
Let us know how you go.


Time: 5th June 2009 4:28pm

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