Q: I heard rust fungus can infect junipers but that they aren’t worth spraying to treat. Is there anything else I can do to reduce the fungal spread from them to my other trees? A: If you see and can ...

Question: You recommended a fungicide for an orange rust control on plumeria. The rust fungus seems like a natural occurrence, especially as the leaves decline in the fall. I have developed the ...

The fungal disease — called coffee leaf rust — is caused by the fungus Hemileia vastatrix, and it is decimating coffee crops throughout South and Central America, which accounts for most of the ...