Effect of Prey Species and Prey Densities on the Performance of Adult Coenosia attenuata

Autor: Deyu Zou, Thomas A. Coudron, Lisheng Zhang, Weihong Xu, Jingyang Xu, Mengqing Wang, Xuezhuang Xiao, Huihui Wu
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Insects, Vol 12, Iss 8, p 669 (2021)
Druh dokumentu: article
ISSN: 2075-4450
DOI: 10.3390/insects12080669
Popis: Mass production of Coenosia attenuata Stein at low cost is very important for their use as a biological control agent. The present study reports the performance of C. attenuata adults when reared on Drosophila melanogaster Meigen or Bradysia impatiens (Johannsem). Different densities (6, 9, 15, 24 and 36 adults per predator) of D. melanogaster or (6, 12, 24, 36 and 48 adults per predator) of B. impatiens were used at 26 ± 1 °C, 14:10 (L:D) and 70 ± 5% RH. The results concluded that C. attenuata adults had higher fecundity, longer longevity and less wing damage when reared on B. impatiens adults compared to D. melanogaster adults. Additionally, C. attenuata adults demonstrated greater difficulty catching and carrying heavier D. melanogaster adults than lighter B. impatiens adults. In this case, 12 to 24 adults of B. impatiens daily per predator were considered optimal prey density in the mass rearing of adult C. attenuata.
Databáze: Directory of Open Access Journals
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