Asian Citrus Psyllid (Diaphorina citri) and Huanglongbing...
A few pictures of a lucky friend's citrus tree leaves showing Asian Citrus Psyllid leaf damage and a possible dead nymph. The tree is/was infested and may be infected but symptoms of huanglongbing take time to show up. The fruit will fail to develop and ripen, parts of the tree will die. Eventually in about ten years if the tree is not destroyed complete tree will die. Currently there is no cure for huanglongbing
If the trees test positive for huanglongbing the CDFA (California Department of Farming and Agriculture) will destroy them.
And the leaves that are green turn to brown
And they whither with the wind
And they crumble in your hand
--Paul Simon
CDFA agents told my friend her trees are the first to be found with an Asian citrus psyllid infestation in San Bernardino Country.
1) leaf curl
2) sooty mold
3) possible dead nymph