Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (19): 293-297.doi: 10.11924/j.issn.1000-6850.2013-3370

Special Issue: 园艺

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Effect of 1-DNJ from Mulberry Leaves on the Biological Activity of Plutella xylostella L.

  

  • Received:2013-12-26 Revised:2014-02-19 Online:2014-07-05 Published:2014-07-05

Abstract: Bioassays in laboratory were employed to investigate anti-feeding, growth inhibitory functions of 1-DNJ extracted from mulberry leaves on the 3th Plutella xylostella. Results showed that the highest anti-feeding rates were 93.33 and 89.25% respectively at 24 and 48 h, and the AFC50 were 0.34 and 0.58 g?L-1, respectively. The developmental inhibition assay indicated that weight and pupatation rates decreased with the increasing 1-DNJ concentration. While, the pupal weight of P. xylostella was non-distinctive inhibited. However, the mortality rates of contact toxicity and stomach toxicity were less than anti-feeding and growth inhibitory effect. These results implied that mulberry was treasuries of bioactive substances useful as pesticides