Guava Leaves Turned To Yellow & Brown

Hi I’ve two guava plants in a container. In Guava 1(more then 3 years): leaves turned to yellow with green veins even new leaves have same issue. Second old leaves curling downward. In Guava 2(more then 2 years): New leaves are curling with brown spots but old leaves is perfectly fine. Your expert advice is highly appreciated.

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1 Comment To "Guava Leaves Turned To Yellow & Brown"

#1 Comment By BushDoctor On 07/14/2020 @ 10:06 am

Unfortunately, without photos it will be hard to tell what is going on.

I suspect a pH issue, which can appear as a Magnesium deficiency, but this does not rule out infection, or an actual Magnesium deficiency.

The first place I would start would be soil testing. Testing nutrient contents and pH will give you a good idea of what the soil lacks, or if you need to adjust the pH. These articles will help:

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm ^[1]

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm ^[2]

That does not rule out the possibility of infection. A fungicide can be used for preventative measure:

https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm ^[3]

This article will help you to the care of the tree:

https://www.gardeningknowhow.com/edible/fruits/guava/growing-guava-fruit-trees.htm ^[4]

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[1] https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm

[2] https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/soil-ph-plants.htm

[3] https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm: https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm

[4] https://www.gardeningknowhow.com/edible/fruits/guava/growing-guava-fruit-trees.htm: https://www.gardeningknowhow.com/edible/fruits/guava/growing-guava-fruit-trees.htm

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