Avocado Trees
Q.

black spots on avocado tree

Zone Live in SW Florida | dibracken added on May 4, 2015 | Answered

What would cause black spots on the leaves of a newly planted avocado tree? Just purchased an avocado tree from our local Home Depot and today it has black dots on its leaves. Wondering what might cause this.

A.
A.Answers to this queston: Add Answer
shelley
Certified GKH Gardening Expert
Answered on May 6, 2015

A photo would aid in my identification but I will give this my best shot. How large are the dots? It is probably insect related and below are pests that would leave black specks/spots/residue:

It could be an avocado lace bug:
http://www.ipm.ucdavis.edu/PMG/P/I-HM-PPER-CO.008.html
https://www.gardeningknowhow.com/plant-problems/pests/insects/what-are-lace-bugs.htm

It could be sooty mold caused by scale or aphids:
http://www.ipm.ucdavis.edu/PMG/r8101411.html
https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm

or thrips:
http://cisr.ucr.edu/avocado_thrips.html
https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-thrips.htm

For more information on avocado pests and disease, please visit the following link:
https://www.gardeningknowhow.com/edible/fruits/avocado/avocado-pests-and-diseases.htm

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