caa a22 4500 386361460 CHVBK 20180307111917.0 cr unu---uuuuu 161130e198909 xx s 000 0 eng 10.4039/Ent121809-9 doi S0008347X00035719 pii (NATIONALLICENCE)cambridge-10.4039/Ent121809-9 EFFICACY OF MIXTURES OF MICROBIAL INSECTICIDES AND PERMETHRIN AGAINST THE CABBAGE LOOPER (LEPIDOPTERA: NOCTUIDAE) AND THE IMPORTED CABBAGEWORM (LEPIDOPTERA: PIERIDAE) [Elektronische Daten] The joint action of permethrin and Bacillus thuringiensis var. kurstaki Berliner (B.t.), Autographa californica (Speyer) nuclear polyhedrosis virus (ACNPV), or Artogeia (= Pieris) rapae (L.) granulosis virus (ARGV) fed as mixtures to larvae of Trichoplusia ni (Hübner) or A. rapae in laboratory bioassys differed with the host insect, the components, and the concentrations of the components. Permethrin interfered with the activity of ACNPV and ARGV in most of the mixtures, particularly at low concentrations of the latter virus but mortality by mixtures of mid-range (approximately LC50 if fed alone) concentrations of permethrin and of ACNPV exceeded the mortality expected by the components acting independently. Concentrations of permethrin in the middle of the dosage range enhanced the effect of B.t. against T. ni resulting in mortality that exceeded the expected mortality but mortality of A. rapae larvae fed most permethrin-B.t. mixtures was less than expected. Copyright © Entomological Society of Canada 1989 Jaques Robert P. Agriculture Canada Research Station, Harrow, Ontario, Canada N0R 1G0 Laing Daniel R. Agriculture Canada Research Station, Harrow, Ontario, Canada N0R 1G0 Maw H. Eric L. Agriculture Canada Research Station, Harrow, Ontario, Canada N0R 1G0 The Canadian Entomologist Cambridge University Press 121/9(1989-09), 809-820 0008-347X 121:9<809 1989 121 TCE https://doi.org/10.4039/Ent121809-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.4039/Ent121809-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jaques Robert P. Agriculture Canada Research Station, Harrow, Ontario, Canada N0R 1G0 NATIONALLICENCE 700 1- Laing Daniel R. Agriculture Canada Research Station, Harrow, Ontario, Canada N0R 1G0 NATIONALLICENCE 700 1- Maw H. Eric L. Agriculture Canada Research Station, Harrow, Ontario, Canada N0R 1G0 NATIONALLICENCE 773 0- The Canadian Entomologist Cambridge University Press 121/9(1989-09), 809-820 0008-347X 121:9<809 1989 121 TCE CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge