Orange Trees
Q.

I have a orange tree

Zone Homosassa FL 34446 | Maeperski added on October 2, 2017 | Answered

I have a orange tree that produced a lot of fruit but all the fruit turns black at the stem which goes thru the fruit and spoils it. Even if I pick the fruit will it is half ripe it still turns brown at the stem. Bottom line, I had a lot of fruit but none eatable. Can this problem be addressed or should I get rid of the tree?

A.
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BushDoctor
Certified GKH Gardening Expert
Answered on October 2, 2017

This appears to be what is called Citrus Tree Brown Rot. There are several things you can do to remedy this. I have a method that works well for me, and I use it as a broad spectrum disease control. It also keeps insects away. Now I have made this to be stronger than it needs to be so if you don't have every ingredient, then it won't make such a big difference. I do recommend NOT skipping the soil priming, as this can kill off any remaining infection in the soil. The recipe is as follows:

irst, you will want to prime the soil with dolomitic lime, then spread wettable sulfur to Kill off any infection in the soil. I Also like to spray the plant itself. Mix a few drops of one or more of these ingredients into warm water with a spoonful of coconut oil: Rosemary oil, lavender oil, neem oil, garlic oil, cinnamon extract/oil and for really bad cases, also add clove oil.

Here is an article for more information: https://www.gardeningknowhow.com/edible/fruits/citrus/citrus-fruit-brown-rot.htm

And here is a collection of interesting articles pertaining to citrus trees: https://www.gardeningknowhow.com/edible/fruits/citrus/

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