00000caa a22000003i 4500 UP-1685594773862388617 Buklod 20210322145346.0 m | | ta 210318s2018 xx r |||| u|eng d (iLib)UPBAG-00039569045 STII-DOST BAG rda eng ARTICLE-2802 Javier, Abigaile Mia V. author. Insecticidal activity of crude ethanolic extracts of five Philippine plants against cabbage worm, Crocidolomia pavonana Fabricius (Lepidoptera Crambidae) by Abigaile Mia V. Javier, Virginia R. Ocampo, Flor A. Ceballo, and Pio A. Javier. 2018. pages 513-521 color illustrations 26 cm text rdacontent unmediated rdamedia volume rdacarrier Includes bibliographical references (pages 520-521) Plant substances play a major role in insect pest management by exhibiting their insecticidal activity through toxicity, antifeedant activity, repellency, and growth regulatory activity. Ethanolic extracts from five plant species ? ?lantana?, Lantana camara (Linnaeus); oregano, Coleus amboinicus (Loureiro); ?langkauas?, Alpinia pyramidata (Blume); ?luyang dilaw?, Curcuma longa (Linnaeus); and ?chichirica?, Catharanthus roseus (Linn.) ? were evaluated for their insecticidal activities including contact and residual toxicity, antifeedant activity, and growth regulator activity against third larval instar of cabbage worm, Crocidolomia pavonana (Lepidoptera). Among the five ethanolic extracts, Cu. longa was the most toxic to cabbage worm when applied topically (LD50=51.00 µg/g) and through leaf residue film method (LC50=116.73 µg/mL) at 72 h after treatment. L. camara ranked second in providing contact toxicity and leaf residue film method. Ethanolic extract from Co. amboinicus showed high antifeedant activity against cabbage worm at 500 µg/mL. All the ethanolic extracts showed insect growth regulatory activities expressed in high larval and pupal mortalities for Co. amboinicus and Cu. longa; high number of abnormal adults for Ca. roseus; and shortened lifespan of adults in L. camara and A. pyramidata. In view of the overall pesticidal properties of the plants, ethanolic extracts from Cu. longa and L. camara can be exploited as botanical insecticides for cabbage worm management. (Author's abstract) Agriculture. Antifeedant. Botanical insecticide. Curcuma longa. Lantana camara. Topical toxicity. Ocampo, Virginia R. author. Ceballo, Flor A. author. Javier, Pio A. author. The Philippine Journal of Science Vol. 147, no. 3, September 2018. Request full-text access via UPB University Library through https://forms.gle/KZjBv7aRtY6jiL5E9 (viewed 18 March 2021) FI UPBAG UPBAG-MAIN ARTICLE-2802 Analytics