yes i know what you mean.....here's the progression....you are on about step two.
1. Edges and tips will wilt and curl.
2. Edges and tips start to burn....rest of leaf begins to look damaged
3. burning continues until the entire leaf turns crispy and dry
4. Leaf burns off.


good luck.

PS...get yourself some good organic bug spray for the bugs....follow directions CAREFULLY. I like Fox Farms Don't Bug Me.