Dreaming of locust trees is a bad omen.
Psychologically speaking, dreaming of locust trees shows that the dreamer's inner world cherishes a kind of emotion in the recent period. The dreamer doesn't want to tell others, but secretly hides it in his heart; It means the dreamer has a little secret in his heart. The black locust tree indicates that your secret is shady or obscure.
Snakes represent genitalia and sex in psychology.
To sum up, there is a secret or depression related to sex and feelings in your mind.