Insecticidal activity of crude seed extracts of<Emphasis Type="Italic">Annona</Emphasis> spp.,<Emphasis Type="Italic">Lansium domesticum</Emphasis> and<Emphasis Type="Italic">Sandoricum koetjape</Emphasis> against lepidopteran larvae |
| |
| Authors: | J?Audrey?Leatemia Email author" target="_blank">Murray?B?IsmanEmail author |
| |
| Institution: | (1) Faculty of Agricultural Sciences, University of British Columbia, V6T1Z4 Vancouver, BC, Canada |
| |
| Abstract: | Crude ethanolic seed extracts ofAnnona muricata, A. squamosa (Annonaceae),Lansium domesticum andSandoricum koetjape (Meliaceae) collected from different locations and years in Maluku, Indonesia, were screened for inhibition of larval growth
against the polyphagous lepidopteranSpodoptera litura (Noctuidae). Extracts ofA. squamosa were significantly more active (20-fold) than those ofA. muricata. A. squamosa collected from Namlea yielded the extracts with the greatest inhibitory activity. There were significant differences among
locations for bothA. squamosa andA. muricata but not forL. domesticum andS. koetjape. Extracts ofA. squamosa, collected from Namlea, inhibited larval growth in a dose-dependent manner, with a dietary EC50 (effective concentration to inhibit growth by 50% relative to controls) of 191.7 ppm fresh weight. Extracts ofA. squamosa collected from individual trees in Namlea also varied in growth inhibitory effect againstS. litura andTrichoplusia ni larvae. This species is a candidate for development of a botanical insecticide for local use in Indonesia.
http://www.phytoparasitica.org posting Dec. 1, 2003. |
| |
| Keywords: | Annona squamosa A muricata Annonaceae Lansium domesticum Sandoricum koetjape Meliaceae Spodoptera litura Trichoplusia ni botanical insecticide |
| 本文献已被 SpringerLink 等数据库收录！ |
|
