Your tree is certainly being tortured by multiple causes. Avocados like high nitrogen food on a regular schedule. You actually have some fruit on your plant that does not have enough energy to grow leaves, remove the fruit. I would take the whole container and immerse it up to the rim in a tub of water, preferable water without a lot of Boron in it. Does your water source not make available a test report on the water they supply? After you remove the container from the soak and it drains the excess water, I would dissolve a table spoon of avocado labeled food such as that available from Lily Miller or if not available, Miracid or other citrus/avocado food per gallon of water. Good luck on your tree rescue. Al

Take 2 on posting my response...since the original didnt post the week or so ago.... I'd love to get the tree more light, but I live in a small apt, and only have a VERY small entry balcony that I share w/ 1 neighbor and this time of year especially only gets like 6-8 hrs of direct sunlight When I water, the water does drain, but has a tendency to sit for a few seconds on top before it all soaks in. The potting mix is something generic my garden designer friend used when we re-potted it in the spring. I feel that it's time to re-pot it again since I've noticed the main root trying to grow out of the hole at the bottom of the pot, but I dont have any deeper pots to put it in. I have one that's wider, but not deeper. Fertilizing? I'm just a poor student that's developed a sudden desire for growing things...this is a hobby going crazy and I dont really have money to get fertalizers. I hope to be starting a vermicompost bin soon so I might be able to get some worm tea in the future to use.

Hi i live in Singapore, hot and humid country. I am experiencing the same situation as lext01. The bottom leaves are consistently turning brown, i water deeply till water runs out from bottom of pot and only water when it feels dry from my finger poke into the soil. The plant is growing with new leaves, and gets 2pm to 6pm sun daily...

probably need a pic to tell whats going on ... and more info ... is it potted or in water .. indoors out out.. etc ... ken