what is happening to my young avocado tree?
Hello all, last yeat I planted three avocado pits and all three have been relatively healthy. However lately the healthiest and best looking tree has been having some issues. As you can see it had some bugs (which I was able to get rid of) now the bottom leaves are starting to brown. I only use fish emulsion so it shouldn't be a ferilizer issue. I was thinking salt burn? I am not to sure as none of my other fruit trees are showing this problem. Thanks in advance for your help!