Fish fry kill by hydra and planaria.

Type

Article

Date of Publication

1978

Original Publication

Mosquito News

Volume

38

Series / Issue

Issue: 1

Pages

043-047

Contributed by

American Mosquito Control Association

Notes

Author(s) - Mulla, M. S. and S-C Tsai.

 

Abstract

The killing of fish fry, Tilapia zillii, by the mosquito biological control agent, Hydra americana, was studied in enamel pans, glass aquaria, in the laboratory and in outdoor ponds. It was found that the hydras readily killed the fish fry under all test conditions. The planarian mosquito predator, Dugesia dorotocephala, was found less lethal than the hydra to the fish fry at stocking rates needed for mosquito control or above these rates.

Notes

Author(s) - Mulla, M. S. and S-C Tsai.