Volume 12, Issue 1 (2023)
JCP 2023, 12(1): 29-42 |
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Ghaemmaghami E, Fathipour Y, Bagheri A, Talebi A A, Zalucki M P. Tracking switching behavior of Trichogramma brassicae (Hymenoptera: Trichogrammatidae) over 45 generations. JCP 2023; 12 (1) :29-42
URL: http://jcp.modares.ac.ir/article-3-66817-en.html
URL: http://jcp.modares.ac.ir/article-3-66817-en.html
Ehsan Ghaemmaghami1 
, Yaghoub Fathipour 
2, Abdoolnabi Bagheri3 , Ali Asghar Talebi1 , Myron P. Zalucki4
, Yaghoub Fathipour 2, Abdoolnabi Bagheri3 , Ali Asghar Talebi1 , Myron P. Zalucki4
1- Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran.
2- Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran. , fathi@modares.ac.ir
3- Plant Protection Research Department, Hormozgan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Bandar Abbas, Iran.
4- School of Biological Sciences, The University of Queensland, St. Lucia, Queensland 4072, Australia.
2- Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran. , fathi@modares.ac.ir
3- Plant Protection Research Department, Hormozgan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Bandar Abbas, Iran.
4- School of Biological Sciences, The University of Queensland, St. Lucia, Queensland 4072, Australia.
Abstract: (757 Views)
The effects of long-term rearing of Trichogramma brassicae (Bezdenko) on host preference and switching behavior was examined when parasitizing two common factitious hosts, including Mediterranean flour moth (MFM), Ephestia kuehniella Zeller and Angoumois grain moth (AGM), Sitotroga cerealella (Olivier) over 45 generations. Both host species eggs were offered to the parasitoid over 24 h. Significantly more MFM eggs were parasitized in all generations, but a distinct negative switching behavior was found in all experiments. The parasitoid negatively switched from MFM when they became abundant compared to AGM and vice versa. The preference coefficient (c) estimated using Murdoch's index ranged from 2.056 (in G5) to 1.734 (in G45) for MFM and 0.486 (in G5) to 0.577 (in G45) for AGM. The linear regression indicated that despite preferring MFM, the intensity of the preference decreased over 45 generations. Negative switching behavior in T. brassicae may be advantageous for this species in controlling pests in given situations.
Keywords: biological control, foraging behavior, host preference, mass rearing, negative switching, Trichogramma brassicae
Article Type: Original Research |
Subject:
Insect Physiology
Received: 2023/01/15 | Accepted: 2023/03/2 | Published: 2023/06/8
Received: 2023/01/15 | Accepted: 2023/03/2 | Published: 2023/06/8
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