Journal of Crop Protection
Journal of Crop Protection
JCP
Agriculture
http://jcp.modares.ac.ir
1
admin
2251-9041
2251-905X
en
jalali
1396
3
1
gregorian
2017
6
1
6
2
online
1
fulltext
en
Virulence of two entomopathogenic nematodes through their interaction with Beauveria bassiana and Bacillus thuringiensis against Pieris brassicae (Lepidoptera: Pieridae)
<em>Pieris brassicae</em> L. is one of the most important pests of Brassicaceae. The insecticidal effect of two entomopathogenic nematodes (EPNs), <em>Heterorhabditis bacteriophora </em>and <em>Steinernema feltiae</em>, was determined through their interaction with <em>Beauveria bassiana </em>and <em>Bacillus thuringiensis</em> subsp. <em>kurstaki</em> (<em>Btk</em>) against <em>P. brassicae</em>. In the interaction tests, the EPNs were applied at LC<sub>50</sub> level 0, 12 or 24h after treating the larvae with LC<sub>10</sub> or LC<sub>25</sub> of the <em>B. bassiana</em> or <em>Btk</em>. The interaction between the EPNs and <em>B. bassiana</em> was entirely different from the interaction of the EPNs and <em>Btk</em>. The interaction with <em>B. bassiana</em> was dependant on time intervals, while the interaction of the EPNs with <em>Btk</em> was almost additive or synergistic. An antagonistic effect was seen when the EPNs were applied immediately after the <em>B. bassiana</em>. However, the application of the EPNs 24h after their treatment with <em>B. bassiana</em> caused additive or synergistic effects. The results also showed the best mortality effect when the EPNs were used with <em>Btk</em> at 12 h and 24 h time intervals. Based on the results, a simultaneous use of the EPNs and <em>B. bassiana</em> is not recommended against <em>P. brassica</em>. However, the EPNs could be used simultaneously after <em>Btk</em> but it is better to allow a time interval to increase mortality.
Biological control,Heterorhabditis bacteriophora,IPM,Steinernema feltiae
287
299
http://jcp.modares.ac.ir/browse.php?a_code=A-3-14657-1&slc_lang=en&sid=3
Arman
Abdolmaleki
Arman
Abdolmaleki
100319475328460068929
100319475328460068929
Yes
Department of Entomology, Agricultural Sciences Faculty, University of Mohaghegh Ardabili, Ardabil, Iran.
Department of Entomology, Agricultural Sciences Faculty, University of Mohaghegh Ardabili, Ardabil, Iran.
Hooshang
Rafiee Dastjerdi
Hooshang
Rafiee Dastjerdi
100319475328460068930
100319475328460068930
No
Department of Entomology, Agricultural Sciences Faculty, University of Mohaghegh Ardabili, Ardabil, Iran.
Department of Entomology, Agricultural Sciences Faculty, University of Mohaghegh Ardabili, Ardabil, Iran.
Zahra
Tanha Maafi
Zahra
Tanha Maafi
100319475328460068932
100319475328460068932
No
Iranian Research Institute of Plant Protection, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran.
Iranian Research Institute of Plant Protection, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran.
Bahram
Naseri
Bahram
Naseri
100319475328460068931
100319475328460068931
No
Department of Entomology, Agricultural Sciences Faculty, University of Mohaghegh Ardabili, Ardabil, Iran.
Department of Entomology, Agricultural Sciences Faculty, University of Mohaghegh Ardabili, Ardabil, Iran.