Our palms have been dramatically over pruned!!
I'm from Glendale [Phoenix] and we had our mexican fan palm trees trimmed today, we had an agreement not to cut green leaves, but when I arrived, some of the trees were dramatically over pruned!!! They are pruned up beyond the horizontal and it exposes tender tissues!!! They look terrible.... Some of our neighbors had palms over pruned in the same way and after a month they still look very unhealthy!!!
I don't know much about large palm care, so I need any help: what can I do now? Is there any special plant food/fertiliser what makes leaves sprout? How can I prevent possible disease? Any way how to help them?