Tree health?

Question

so we live been living in this house 4 da past 1 yr and a half and in our back yard we have 3 trees (i think theyre cypruses but iam not sure.the leaves look like flattend christ,mas tree leaves.)and they look sick .we have never seen them sick b4.the leaves near the bottom are turning yellowish red orange.we put in some tree food a week ago.nothing happend.so do the trees have a disease?is it cureable?wats the cure?

Answer 1

citrus canker; nope no cure. the trees must be cut

Answer 2

It depends entirely on where in the world you are, what the season is, soil type, recent weather conditions, other nearby tree condition and which EXACT tree it is. You'll need to provide  a photo and more details. If the guy above turns out to be right, its a lucky wild stab in the dark. By the way, any plant food put down for a tree is gonna take way longer than a week to take any effect.