Avocados shed their leaves this time of year and will flush new leaves.
Hi Spaugh-
I know that the CA, particularly Northern CA, avocado trees will drop leaves in Spring and push out a new flush of growth. But I wonder if your trees have dropped as many leaves as have mine.
Here's a picture of the trees from a while back when I was worried about the yellowing leaves:
Here's what they look like today. They've dropped 50% of the leaves over the past week (probably more):
One of the reasons I'm concerned with such a heavy leaf drop is that it exposes the entire tree, trunk, branches, fruitlings and all to sunburn. The fruit set on my Fuerte seem to be cooking in the sun:
In the end, I'm probably just fighting a losing battle with these trees stuck in their constricting pots. If they fail to hold any viable fruit this early season, I'll probably cut them to stumps, topple the 500lb pots, pull them out, root-prune and then try and re-pot in expandable RBII containers; maybe top-work a few. I don't like having such unhealthy, unfruitful trees.