Just with her word of mouth and a piece of paper from a landscaper, does she have a case on grass damage or will it be dismissed?

I went for a desk appearance and charged with criminal mischief of destruction of property of grass brought by my next door neighbor. The evidence was that she said she saw me do it and that her landscape verified that the grass had destructive chemicals which he stated on his business letter head. She has constantly call the police to complain about her grass being damage cause my life a living hell. Of course, I did not do anything that she claims.