Q.Why Are My Avocados Leaves Midribs Turning Black?
My avocado plant is 1.5 years old. About one week ago i found that midrib of one leave was turning black. Today there are 3 leaves with black midrib,this black places become larger in size. Also there are little brown dots. Also i want to know should i clean leaves, if yes,how? Also there are spring tails in the soil and i dont know how to kill them. Please help me, i want to save my avocado plant. Thanks
Certified GKH Gardening Expert
Springtails won't, typically, cause any harm at all. They are beneficial to the soil.
Speaking of soil... I don't see a picture of it. The damage would indicate overwatering, but this kind of damage can occur from overfertilization, as well.
These articles will help:
Here is an article that will help you with the general care of the tree in container:
As far as spraying the leaves- I mist my indoor trees with water, or water with just a bit of aspirin in it. I do this once or twice per week, but you can do this more often if you would like.