Q: I have a Eureka lemon tree with a branch or two that are dying. Is it a borer problem? A: Branch dieback in citrus, particularly lemon, is very confusing. It is not likely to be a borer problem.

Grass and vegetation against the trunk of a stone fruit tree provides a humid and secluded place for female borer moths to lay their eggs. Grass against a trunk also increases the likelihood of string ...