Publication: In vitro assay of botanical extracts against chili pepper thrips (Tripidae: Thysanoptera) Frankliniella app.
| dc.contributor.author | Quila, Stephanie H. | |
| dc.date.accessioned | 2026-04-27T07:31:56Z | |
| dc.date.available | 2026-04-27T07:31:56Z | |
| dc.date.issued | 2024-05 | |
| dc.description.abstract | Chili pepper thrips (Frankliniella spp) are major insect pests affecting leaves and fruits of chili pepper worldwide. In view of sustainable agriculture, a safe alternative to synthetic pesticides is needed. Hence, an in vitro study was conducted to evaluate the effectiveness of different botanical extracts against chili pepper thrips. This study includes the morphological characterization of the thrips, determination of the presence of secondary metabolites of the botanical extracts and the mortality rate, and degree of effectiveness of the botanical extracts on thrips. The study was conducted at Dangle’s Farm, Bagutot, Bacnotan, La Union from April 1, 2023 to June 2023. The in vitro assay was conducted at Suagayan, Sta. Lucia, Ilocos Sur. The phytochemical analysis was done at LORMA Medical School on May 15-17, 2023. The statistical design used was Completely Randomized Design with five treatments and three replications. Morphological characterization confirmed that the insect specimens are Frankliniella spp (Thripidae:Thysanoptera). This is characterized by having elongated, slender, cylindrical-shaped and yellow wings with dark tips, they are usually yellowish-brown with fringes. Furthermore, it has been noted that Frankliniella spp. possesses both brachypterous (short wings) and macropterous (long wings) wing forms. The head and thorax have setae, and comb is present in abdomen, with eight antennal segments. Phytochemical analysis revealed that flavonoid, phenolic compounds and saponins were present in the three botanical extracts: neem leaves, kakawate leaves and citronella leaves. In vitro assay showed that thrips sprayed with neem, kakawate, and citronella extracts have a mortality 26.67%, 13.33%, and 23.33%respectively. While Sevin 85 WP resulted to 100% mortality rate. Based on BAFPS rating, neem leaf extracts were moderately effective, kakawate leaf extracts and citronella leaf extracts were less effective. | |
| dc.identifier.citation | Quila, S.H. (2024). In vitro assay of botanical extracts against chili pepper thrips (Tripidae: Thysanoptera) Frankliniella app. [Unpublished Undergraduate Thesis, Don Mariano Marcos Memorial State University- North La Union Campus, Bacnotan, La Union]. | |
| dc.identifier.uri | https://lakasa.dmmmsu.edu.ph/handle/123456789/1427 | |
| dc.language.iso | en | |
| dc.publisher | Don Mariano Marcos Memorial State University- North La Union Campus | |
| dc.sdg | SDG 12 | |
| dc.title | In vitro assay of botanical extracts against chili pepper thrips (Tripidae: Thysanoptera) Frankliniella app. | |
| dc.type | Thesis | |
| dspace.entity.type | Publication |