Effects of Thai plant extracts on the oriental fruit fly [Darcus dorsalis] II. repellency test

Sutharm Areekul . Faculty of Agriculture. Dept. of Entomology; Prateungsri Sinchaisri

Effects of Thai plant extracts on the oriental fruit fly [Darcus dorsalis] II. repellency test

1988

Sutharm Areekul (Kasetsart Univ., Bangkok (Thailand). Faculty of Agriculture. Dept. of Entomology) | Prateungsri Sinchaisri

Plant extracts which exhibited high repellency to the oviposition of the female flies [Darcus dorsalis] were obtained from Azadirachta indica var. siamensis Veleton, Bixa orellana Linn., Citrus hystrix D.C., Cucumis melo Linn., Cymbopogon citratus Stapf., Hedychium coccineum var. angustifolium Roxb., Heliotropium indicum R. Br., Homalomena sp., Ocimum gratissimum Linn., Ricinus communis Linn., and Ternstroemia japonica Thunb. Among the unidentified species, they included En-Luang and Phra-Taba. Moderate levels of repellency were obtained from extracts of Allium sativum Linn., Melodorum fruticosum Lour, and Meha-Kamlang. Mild repellent to the oviposition of the flies was exhibited by plant part extracts of the following species: Acharas sapota Linn., Alpinia siamensis Schum., Andrographis paniculate Wall. ex Nees. Anona squamosa Linn.,Anthemis nobilis Linn., Bouginvillea spectabilis Willd., Cinnamomum siamense Craib., Cinnamomum Zeylanicum Linn., Curcuma comosa Roxb., Curcuma longa Linn., Curcuma zedoaria Roxae, Elholtzia blanda Benth., Eupatorium adenophorum Spreng., Jatropha curcas Linn., Jatropha gossypifolia Linn., Litsea cubeba Pers., Mentha cordifolia Opiz., Momordica charantia Linn., Myristica fragrans Linn., Piper sarmentosum R. ex H., Portulaca pilosa Linn., Quisqualis indica Linn., Stemona tuberosa Lour., and Tinospora crispa Miers. Of the unidentified species, they included Gai-Khan, Kan-Tha-Mala,Lai-Ma,Ma-Haw, and Maurakot.

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