Oshawa, Kanju, Indonesia

• Buletin Hama dan Penyakit Tumbuhan Vol. 12 No. 1 (2000): Buletin Hama dan Penyakit Tanaman - Articles
  

  Swietenia mahogany Jacq. (Meliaceae) seeds were extracted with methanol. In choice and no-choice leaf disc methods, the crude extract at 5% completely inhibited feeding activity of third instar larvae of the diamondback moth, Plutella xylostella (L.) (Lepidoptera: Yponomeutidae). Fractionation of the extract by combination of counter-current distribution method, silica gel column chromatography and preparative TLC yielded one fraction which strongly inhibited P. xylostella larval feeding activity by 98.3 % at a concentration of 0.2%.

  
  Abstract  PDF