@article{Verdegem_McGinty_1986, title={Depredation of Tilapia Fry by Dragonfly Nymphs and a Means for Control}, volume={70}, url={https://revistas.upr.edu/index.php/jaupr/article/view/7094}, DOI={10.46429/jaupr.v70i3.7094}, abstractNote={Dragonfly nymphs readily prey on <em>Tilapia nilotica</em> fry. In plastic pools (10 m<sup>2</sup>, 0.8 m deep) stocked with equal numbers of dragonfly nymphs and tilapia fry, survival of fry was 51% higher in pools treated with methyl parathion, than in untreated pools. Applying 0.25 p/m active ingredient of methyl parathion 3 days before stocking fry killed all dragonfly nymphs with no apparent direct effects on fry survival or growth.}, number={3}, journal={The Journal of Agriculture of the University of Puerto Rico}, author={Verdegem, Marc C. J. and McGinty, Andrew S.}, year={1986}, month={Jul.}, pages={213–216} }