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 ...

Q: I have a palm tree that is starting to shed its outer layer. It looks terrible. We were told about 10 years ago not to skin palm trees because of borers. Is this correct? A: I am not sure which ...

Dear Neil: My beautiful Yoshino cherry tree has a gummy or jellylike sap oozing from its trunk. The tree is about 5 years old. I’ve also noticed little sprouts emerging from its exposed roots. Is this ...

Q: Our apricot tree has yellow ooze on the trunk, which we think could be a fruit tree borer. Do you have any words of wisdom about how to control this insect on this tree and others, as well as how ...

Q: We have four aspens that were planted in the last two to three years. One of the trees has sap damage in a number of areas. It has leafed out and looks healthy otherwise. The damage looks like a ...

Q: I have been cutting off the dead branches on borer-infested trees. Should I burn or dispose of these dead branches? A: Flat-headed borers can get in the sunburned limbs and young trunks of peach, ...

The Western Australian government yesterday announced that it would stop trying to eradicate an invasive pest that's killing trees in and around Perth and start managing it instead. The pest, the ...

Two invasive beetles are killing trees across California — and researchers can't predict where they'll strike next. The kuroshio and polyphagous shot-hole borers attack by drilling into trunks and ...