Please help my avacodo tree the tips of the leaves are turning brown and consuming one leaf at a time starting with the older leaves at the bottom, my plant is not over watered i wait till the soil is almost dry it has good drainage still getting new leaves daily and gets good sun, what do i do can i cut the yucky leaves off and what can i do to make it better and not do this anymore????Also i started this avacodo from a seed and i am in fresno ca. HELP HELP HELP I also have started several other avacodo seeds and i was wondering is it normal to have like white popcorn stuff all over the root syztem? and one more thing one of my seeds has like four stems poping up but it seems like it isnt growing as fast as my other two have?