Effect of sugar concentration and feeding duration on the cold tolerance of Bracon hebetor Say adults

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AFSHARI A.; Nazari Fandokht E.

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Journal: PLANT PEST RESEARCH Year:2019 | Volume:8 | Issue:4 Page(s): 55-69

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Title

Effect of sugar concentration and feeding duration on the cold tolerance of Bracon hebetor Say adults

Author(s)

AFSHARI A. | Nazari Fandokht E. | Issue Writer Certificate

Keywords

Biological controlQ2

Mass rearingQ1

ParasitoidQ1

Cold-storageQ1

Abstract

Cold storage is a general technique to long-term preservation of wasp Parasitoid, Bracon hebetor in insectaries. The aim of this study was to investigate effects of honey solution concentration (5, 20 and 40%) and feeding duration (24, 48 and 72 hours) on the biological and reproductive characteristics of this Parasitoidin both cold-stored and not-stored conditions. Adult Parasitoids collected immediately after emergence and stored inside a refrigerator (5± 1° C) for 7 days, and mortality, longevity, fecundity and parasitism ability were subsequently assessed. In unstored populations, Parasitoid longevity, fecundity and parasitism ability increased by sugar concentration and reached to their peaks in 40% honey solution (17. 8± 1. 4 days, 230. 3± 12. 1 eggs/female and 140. 3± 8. 6 host larvae/ female, respectively). Moreover, sugar concentration and feeding duration significantly affected cold stored Parasitoids quality. Adults feeding on high concentration of honey solution (40%), increased significantly their cold tolerance and longevity and fecundity after cold storage. 24-hour feeding on 40% honey solution before cold storage was the best treatment to keep Parasitoid quality during cold storage. In this case, female longevity, fecundity and parasitism ability were estimated 22. 9± 2. 1 days, 330. 9± 46. 4 eggs/female and 173. 3± 18. 1 host larvae/female, respectively. In conclusion, it seems that feeding wasps with a 40% honey solution for 24 hours before cold storage could be recommended to increase cold tolerance of adult B. hebetor.

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APA: Copy

AFSHARI, A., & Nazari Fandokht, E.. (2019). Effect of sugar concentration and feeding duration on the cold tolerance of Bracon hebetor Say adults. PLANT PEST RESEARCH, 8(4 ), 55-69. SID. https://sid.ir/paper/373710/en

Vancouver: Copy

AFSHARI A., Nazari Fandokht E.. Effect of sugar concentration and feeding duration on the cold tolerance of Bracon hebetor Say adults. PLANT PEST RESEARCH[Internet]. 2019;8(4 ):55-69. Available from: https://sid.ir/paper/373710/en

IEEE: Copy

A. AFSHARI, and E. Nazari Fandokht, “Effect of sugar concentration and feeding duration on the cold tolerance of Bracon hebetor Say adults,” PLANT PEST RESEARCH, vol. 8, no. 4 , pp. 55–69, 2019, [Online]. Available: https://sid.ir/paper/373710/en

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