Determination of the toxicity of dinotefuran and thiamethoxam to Comperiella calauanica Barion, Almarinez & Amalin (Hymenoptera: Encyrtidae)

Date of Publication

8-2017

Document Type

Bachelor's Thesis

Degree Name

Bachelor of Science in Biology

Subject Categories

Biology

College

College of Science

Department/Unit

Biology

Thesis Adviser

Divina M. Amalin
Billy Joel M. Almarinez (co-adviser)

Abstract/Summary

Exporting of coconut is one of the most important industries in the country, providing around 5.49 billion pesos in income. However, emerging pest species, including Aspidiotus rigidus, have threatened the coconut industry in the Philippines. Application of systemic neonicotinoids such as dinotefuran and thiamethoxam are being used to combat A rigidus and other sucking insects. However, with both of them being broad spectrum insecticide, they both have the potential to not only kill target species but also affect non target species; such as Comperiella calauanica, the biological control agent to A. rigidus. This study aimed to determine the lethal effects of thiamethoxam (Actara ®) and dinotefuran (Starkle SG ® ) to C. calauanica. Based on the results, it seems that dinotefuran and thiamethoxam have lethal effects on C. calauanica because of the observed neurotoxic effects and mortality after 2 hours exposure to the neonicotinoids.

Abstract Format

html

Language

English

Format

Electronic

Accession Number

CDTU021784

Shelf Location

Archives, The Learning Commons, 12F, Henry Sy Sr. Hall

Keywords

Insecticides—Toxicology; Hymenoptera

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Embargo Period

5-27-2025

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