Studies on the effectiveness and growth inhibitory effect of Margosan-O on diamondback moth (Plutella xylostella)
1996
Hu Meiying (South China Agricultural Univ., Guangzhou (China). Laboratory of Insect Toxicology)
Results of experiments in laboratory showed that margosan-O possessed strong insecticidal properties and growth regulatory effects on the 3rd instar larvae of the diamondback moth (DBM). The mortality of the larvae and pupae was 84.21 when the 3rd instar larvae of DBM were fed by the leaves of vegetable sprayed with 15 mg/L margosan-O. The pupation, emergence and fecundity of DBM were seriously suppressed by margosan-O. Experimental results also proved that the LC50 was 36.90 mg/L and 28.77 mg/L respectively, on resistant strain and susceptible strain of the 3rd instar larvae of DBM
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