I think most of the problem is insufficient web due to shortage of food. so, build square grid (cover whole area) to get more flies.(and build web as much as possible) from stage 3, your grid will be quite dense, and your major mission is devour bugs as much possible. devour bugs, and build web fast, an so on. since dragonflies are useful for eating bugs fast, so eat them frequently.
priority of the bugs: big animals -> queen bee -> firefly -> stag beetle/dragonfly -> fly -> ladybug
In fact, It's 10-year-old game. bonte learned something from this game, and now there are peaceful bontegames. Actually Greg has responsibility of these bad comments, because he BOTDed this game!
stage 24: use right click then move, then left click. however, since this game checks these kind of cheat, you should move until met branch. if you meet branch, press left click, then press right click again to move further.