I haven't seen mosquito larvae in any abundance in waters that have a viable fish population. Now any minor standing water in a small container, even a dog water bowl or tire that is not on a rim? Yes, mosquito larvae are in there. One female mosquito can lay up to 5,000 eggs....... You can go from eggs laid to a biting mosquito in as little as 8 days.

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3/4 to 1 1/4 ac pond LMB, SMB, PS, BG, RES, CC, YP, Bardello BG, (RBT & Blue Tilapia - seasonal).