EFFECTS OF DECAMETHRIN AND PERMETHRIN ON THE BIOLOGY OF TWO COCCINELLID PREDATORS OF BLACK BEAN APHIDS

Authors

  • Erlinda A. Vasquez Science Research Specialist, Philippine Root Crop Research and Training Center, Baybay, Leyte, Philippines
  • Emiliana N. Bernardo former Director, Philippine Root Crop Research and Training Center, Baybay, Leyte, Philippines
  • Lorenza B. de Pedro Instructor, Department of Plant Protection, Visayas State College of Agriculture, Baybay, Leyte, Philippines

Keywords:

Decamethrin, Permethrin, Coccinellid predators, Biology, Black bean aphids

Abstract

The two species of coccinellid predators (Chilomenes sexmaculata Fabr. and Coleophora inaequalis Fabr.) treated with decamethrin and permethrin showed slightly longer total developmental period, higher mortality rate and lower fecundity rate than the untreated ones, particularly C. inaequalis. No significant differences were found in percent egg hatchability and adult longevity. These results were observed only in the first generation where individuals were in direct contact with the insecticides but not in the second and succeeding generations.
Data generally suggest that decamethrin is relatively safe to the two species of predators and that decamethrin-coccinellid combination could be recommended for black bean aphid control.

Downloads

Submitted

2025-04-28

Published

1987-11-27

How to Cite

Vasquez, E. A., Bernardo , E. N., & de Pedro, L. B. (1987). EFFECTS OF DECAMETHRIN AND PERMETHRIN ON THE BIOLOGY OF TWO COCCINELLID PREDATORS OF BLACK BEAN APHIDS. Annals of Tropical Research, 9(4), 212–223. Retrieved from https://atr.vsu.edu.ph/article/view/662

Issue

Vol. 9 No. 4 (1987)

Section

Research Article

License

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.