If you have anything like this on your property, it’s time for immediate action! This photo shows about 100 mosquito larvae. The corresponding video shows them happily snapping their way (that’s how they move) around the shallow water rich in organic organic matter, their ideal habitat.

The good news is that an application of several tablets of the non-toxic larvicide Bti in a surface area of about 100 square feet virtually wiped out the larvae within 2 days.

With a bit of practice, it becomes easy to detect larvae in standing water. Sunlight helps show them, or a good flashlight. They are easily visible, about 3/8″ long, and a slight disruption of the water encourages them to zip around looking for shelter.