So, I got my rubber tree plant from a nursery and it looked a bit damaged (it had scars on the leaves if that makes sense). I didn't care so I decided to take care of it. I sprayed it once with fungicide and pesticide, all good. 1 month later... I watered it 2 days ago, it leaked the water out as normal but since then and that's when I noticed it's been dropping the little leaves. So I looked at them to see if it could be bugs and honestly I didn't see anything but there is a new little leave that has a 'burnt' 'bitten' part so I am worried. Thanks
Certified GKH Gardening Expert
This is a pH problem, it would seem. There also seems to be a fungal infection setting in. I would apply dolomitic lime, and replace 1/4 of your water with peroxide the next time you water. These will want the soil to dry out in the top two inches. Let this dry a little between watering, and this will prevent future infections.
This article will give you more information on the care of these: https://www.gardeningknowhow.com/houseplants/rubber-tree/how-to-care-for-a-rubber-tree-plant.htm