caa a22 4500 386375372 CHVBK 20180307112016.0 cr unu---uuuuu 161130e198910 xx s 000 0 eng 10.1017/S1742758400021688 doi S1742758400021688 pii (NATIONALLICENCE)cambridge-10.1017/S1742758400021688 Increased insecticide susceptibility in Heliothis armigera (Hbn.) and Spodoptera litura F. Larvae due to Bacillus thuringiensis Berliner Treatment [Elektronische Daten] Laboratory bioassay tests showed that Bacillus thuringiensis (B.t.) (Bactospeine) treatment of second instar larvae of Heliothis armigera (Hbn.) and Spodoptera litura F. increased their susceptibility to endosulfan, monocrotophos, fenvalerate and cypermethrin. The LC50 of these insecticides to both the species of larvae were lowered when treated with B.t. Comparison of susceptibility ratios showed that the increased susceptibility to insecticides was more in H. armigera than in S. litura larvae. Copyright © ICIPE 1989 Bacillus thuringiensis nationallicence insecticide susceptibility nationallicence Heliothis armigera nationallicence Spodoptera litura nationallicence endosulfan nationallicence monocrotophos nationallicence fenvalerate nationallicence cypermethrin nationallicence Sensibilité aux produits phytosanitaires induit nationallicence Bacillus thuringiensis nationallicence Heliothis armigera nationallicence Spodoptera litura nationallicence endosulfan nationallicence monocrotophos nationallicence fenvalerate nationallicence cypermethrin nationallicence Justin C. Gailce Leo Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore 641 003, India Rabindra R. J. Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore 641 003, India Jayaraj S. Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore 641 003, India International Journal of Tropical Insect Science Cambridge University Press 10/5(1989-10), 573-576 1742-7584 10:5<573 1989 10 JTI https://doi.org/10.1017/S1742758400021688 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S1742758400021688 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Justin C. Gailce Leo Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore 641 003, India NATIONALLICENCE 700 1- Rabindra R. J. Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore 641 003, India NATIONALLICENCE 700 1- Jayaraj S. Centre for Plant Protection Studies, Tamil Nadu Agricultural University, Coimbatore 641 003, India NATIONALLICENCE 773 0- International Journal of Tropical Insect Science Cambridge University Press 10/5(1989-10), 573-576 1742-7584 10:5<573 1989 10 JTI CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge