Volume 22, Issue 3 (2020)                   JAST 2020, 22(3): 747-757 | Back to browse issues page

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Koohpayma F, Fallahzadeh M, Bagheri A, Askari Seyahooei M, Fathipour Y, Dousti A F. Climatically Isolated Populations of Habrobracon hebetor Say (Hymenoptera: Braconidae) Demonstrate Striking Differences in Life History Traits. JAST 2020; 22 (3) :747-757
URL: http://jast.modares.ac.ir/article-23-31737-en.html
1- Department of Entomology, Islamic Azad University, Jahrom Branch, Jahrom, Islamic Republic of Iran.
2- Department of Plant Protection Research, Hormozgan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Bandar Abbas, Islamic Republic of Iran. , nabibagheri53@gmail.com
3- Department of Plant Protection Research, Hormozgan Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Bandar Abbas, Islamic Republic of Iran.
4- Department of Entomology, Faculty of Agriculture, Tarbiat Modares University, P. O. Box: 14115-336, Tehran, Islamic Republic of Iran.
Abstract:   (2442 Views)
Augmentative release of native natural enemies is a prominent strategy for suppression of crop pests. Intrinsic differences among populations of natural enemies may affect their efficiency in pest management programs. We characterized life history traits of 13 climatically and geographically isolated populations of Habrobracon hebetor Say (Hymenoptera: Braconidae) from different regions of Iran to assess their suitability for biological control of noctuid moths. All experiments were performed at 25±1°C, 65±5 RH and 16:8 (L:D) hours photoperiod regime. Ephestia kuehniella (Zeller) (Lepidoptera: Pyralidae) was used as a laboratory host. Our results revealed significant variation in female longevity, paralysis and parasitism rate, sex ratio, reproductive rate and host allocation among different H. hebetor populations tested. The highest number of offspring (124.2) and parasitized larvae (160.1) were observed in Bandar Lengeh and the lowest ones was observed in Urmia and Jiroft, respectively (3.4 and 9.3 for Urmia and 3.1 and 10.1 for Jiroft). Also, the wasps of Bandar Lengeh paralyzed more than 95% of the introduced host larvae. The longest female longevity and male production (21.3 days and 80.1, respectively) were in Bandar Abbas and Bandar Lengeh (21.3 days and 80, respectively), while the lowest ones were in Dehloran (12.9 days and 40.2, respectively). Gorgan population deployed the highest number of Ephestia kuehniella larvae in foraging behavior test. These results show considerable variation in the life history traits of various populations of H. hebetor, which may affect performance of these populations under field condition.
 
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Article Type: Original Research | Subject: Agricultural Economics/Agriculture Marketing and Supply Chains
Received: 2019/04/6 | Accepted: 2019/07/2 | Published: 2020/04/22

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