Bignay (Antidesma Bunius) Leaf Extract Stands as an Organic Pesticide against Rice Black Bugs (Scotinophara Coarctata)

Jeune Aiyana Zophie Latiza (Sultan Kudarat State University)
Ashley Claire Pasawilan (Sultan Kudarat State University)
Goji Gacoscos (Sultan Kudarat State University)
Dave Lesther Bangeles (Sultan Kudarat State University)
Charles Godwin Caas (Sultan Kudarat State University)
Anamarie Valdez (Sultan Kudarat State University)
Hassanal Abusama (Sultan Kudarat State University)

Asean Journal of Science and Engineering (AJSE)
Vol 2, No 1 (2022): AJSE: March 2022

This research aimed to sought solutions to the growing problems of rice black bugs (Scotinophara coarctata) damaging the rice crops of farmers. This study used an experimental method to determine which solution is effective against rice black bugs. Bignay (Antidesma bunius) leaves were collected, cut, soaked in water, crushed using a mortar and pestle, and extracted using a thin cloth. The extracts of the leaves were then placed in 4 different concentrations in bottles. 6 bugs were soaked in each solution, respectively, but with different periods (3, 5, and 10 min). We found that the extract is lethal towards black bugs since it has anti-bacterial activity, even though it damaged the rice crops. Bignay fruit was intended to be utilized as another variable, but due to the weather, fruits were not yet visible in the Bignay tree. We concluded that the thickness of the solution served as the main reason why the rice black bugs died. The result of this study can be utilized to address the rising problems caused by rice black bugs.