Cutrine Plus Algaecide can be used in ponds and lakes to help control different types of algae, except if you have trout, koi fish and hybrid goldfish, Cutrine Plus Algaecide is toxic to these types of fish. We recommend to treat 1/2 of your pond first and wait 14 days to treat the other 1/2 of the pond to avoid fish suffocation caused by oxygen depletion from decaying algae.
Cutrine Plus Algaecide is only labeled for controlling algae, we are not aware of any other off label usages such as control of bugs.
No, Cutrine Plus Algaecide is not labeled for use on wood, only in water.