pistache

Hello arborists, I need help with pollination of a pistachio tree in a backyard in the San Francisco bay area. The tree may be about 10 years old and the nuts it produces are not well formed. There are no other pistachio trees nearby, so it does not have a a male pollinator. So I'm...

Late last summer I mistakenly sprayed 3 Chinese Pistache trees with Roundup. I didn't realize it until the leaves began yellowing and dying so no immediate efforts were applied. I was told to let them overwinter and see what happens. It's now Spring and they are leafing out. The leaves, however...

Late last summer I mistakenly sprayed 3 Chinese Pistache trees with Roundup. I didn't realize it until the leaves began yellowing and dying so no immediate efforts were applied. I was told to let them overwinter and see what happens. It's now Spring and they are leafing out. The leaves, however...