Volume 13, Issue 4 (2024)                   JCP 2024, 13(4): 373-384 | Back to browse issues page

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Safaeeniya M, Sedaratian-Jahromi A, Khanamani M. Do the parasitism parameters of Trichogramma brassicae change when Tuta absoluta feeds on resistant and susceptible tomato cultivars?. JCP 2024; 13 (4) :373-384
URL: http://jcp.modares.ac.ir/article-3-76362-en.html
Do the parasitism parameters of Trichogramma brassicae change when Tuta absoluta feeds on resistant and susceptible tomato cultivars?
Monavar Safaeeniya1 , Amin Sedaratian-Jahromi 2, Mostafa Khanamani3
1- Department of Plant Protection, Faculty of Agriculture, Yasouj University, Yasouj, Iran.
2- Department of Plant Protection, Faculty of Agriculture, Yasouj University, Yasouj, Iran. , sedaratian@gmail.com
3- Department of Plant Protection, Faculty of Agriculture, University of Jiroft, Jiroft, Iran.
Abstract:   (168 Views)
Integrated application of compatible methods is the most reliable strategy for sustainable management of phytophagous pests in different agroecosystems. In the current study, parasitism parameters of Trichogramma brassicae Bezdenko were determined on eggs of Tuta absoluta (Meyrick) reared on a susceptible "Infinity" and a resistant "Goldy" tomato cultivar. All experiments were carried out under laboratory conditions at 25 ± 1 °C, 65 ± 5% RH, and a photoperiod of 16:8 (L:D) h. Our results showed that the maximum number of parasitized hosts per parasitoid was 25.94 and 23 eggs in "Goldy" and "Infinity" cultivars, respectively. The cultivars tested had no significant effects on the net parasitism rate (C0), and the values of this parameter were 7.87 and 6.67 hosts on the mentioned cultivars, respectively. Similarly, the cultivar impact on the finite (ω ) and stable parasitism rates (ψ ) of T. brassicae was not significant. The parasitoid needed approximately one egg host to produce an egg on both cultivars for the simple reason that this parasitoid nearly always lays one egg in each host. In other words, the transformation rate (Qp) of the parasitoid on the "Goldy" did not differ from that estimated on the "Infinity". Our findings revealed that the resistant tomato cultivar, "Goldy", did not compromise T. brassicae-based biocontrol of T. absoluta. Therefore, these two control procedures could be combined for the integrated management of this pest.

 
Keywords: Finite parasitism rate, Host plants, Integrated pest management, Net parasitism rate, Tomato leaf miner
Full-Text [PDF 637 kb]   (134 Downloads)    
Article Type: Original Research | Subject: Insect Biological Control
Received: 2024/08/1 | Accepted: 2024/12/30 | Published: 2025/01/3
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