Mango plant disease/pests

I’m growing mango plants from seed and they are in either 1 gal or 3 gal containers. Almost all of them (12 pots) have either got, or have started getting, different problems. I’ve read other suggestions about using a copper-based spray, or various insecticides, fertilizers, but these all seem to be aimed at much larger plants. My plants are all 6 months-1 year old and are growing inside by floor to ceiling windows (next to the beach in the Los Angeles area) with a special plant light on for 4 hrs/day.

The photos below show what I think are 2 different problems: powdery mildew and anthracnose. How can I control and eliminate these in young plants? My tallest plant is about 18″. Thank you for any help on this — I love these plants and don’t want to lose them.

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1 Comment To "Mango plant disease/pests"

#1 Comment By Downtoearthdigs On 03/27/2016 @ 8:31 pm

This is likely a bacterial leaf spot.

You can apply a copper fungicide.

Here are some links that will help you.

https://www.gardeningknowhow.com/edible/fruits/mango/growing-mango-trees.htm ^[1]
https://www.gardeningknowhow.com/edible/fruits/mango/mango-trees-in-pots.htm ^[2]
https://www.gardeningknowhow.com/plant-problems/disease/bacterial-leaf-spot.htm ^[3]
https://www.gardeningknowhow.com/garden-how-to/info/diy-bordeaux-fungicide.htm ^[4]

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URLs in this post:

[1] https://www.gardeningknowhow.com/edible/fruits/mango/growing-mango-trees.htm: https://www.gardeningknowhow.com/edible/fruits/mango/growing-mango-trees.htm

[2] https://www.gardeningknowhow.com/edible/fruits/mango/mango-trees-in-pots.htm: https://www.gardeningknowhow.com/edible/fruits/mango/mango-trees-in-pots.htm

[3] https://www.gardeningknowhow.com/plant-problems/disease/bacterial-leaf-spot.htm: https://www.gardeningknowhow.com/plant-problems/disease/bacterial-leaf-spot.htm

[4] https://www.gardeningknowhow.com/garden-how-to/info/diy-bordeaux-fungicide.htm: https://www.gardeningknowhow.com/garden-how-to/info/diy-bordeaux-fungicide.htm

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