Mandarin Orange Leaf Problem

Hi- my miniature mandarin orange doesn’t produce fruit. The underside of many leaves has a disgusting looking white and black substance clinging to it. Almost looks like white crystals. Is this Leaf Miner? Please tell me I can blast it with something without destroying the pest’s natural enemies!

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1 Comment To "Mandarin Orange Leaf Problem"

#1 Comment By GKH_Susan On 02/13/2021 @ 3:46 pm

It doesn't sound like leaf miners but it could be mealy bugs or scale. The black is sooty mold. Here is more:

https://www.gardeningknowhow.com/edible/fruits/tangerine/mandarin-orange-tree-care.htm ^[1]

https://www.gardeningknowhow.com/edible/fruits/oranges/no-fruit-on-orange-trees.htm ^[2]

https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=29424 ^[3]

https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm ^[4]

Article printed from Gardening Know How Questions & Answers: https://questions.gardeningknowhow.com

URL to article: https://questions.gardeningknowhow.com/mandarin-orange-leaf-problem/

URLs in this post:

[1] https://www.gardeningknowhow.com/edible/fruits/tangerine/mandarin-orange-tree-care.htm: https://www.gardeningknowhow.com/edible/fruits/tangerine/mandarin-orange-tree-care.htm

[2] https://www.gardeningknowhow.com/edible/fruits/oranges/no-fruit-on-orange-trees.htm: https://www.gardeningknowhow.com/edible/fruits/oranges/no-fruit-on-orange-trees.htm

[3] https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=29424: https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=29424

[4] https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm: https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm

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