Predation rate linked to life table of Chrysoperla carnea (Stephen) (Neuroptera: Chrysopidae) fed on small walnut aphid (Chromaphis juglandicola) (Kalt.) (Hemiptera: Aphididae): with population and predation projections

Small walnut aphid ( Chromaphis juglandicola (Kaltenbach) (Hemiptera: Aphididae) is important pest in walnut orchards in Lake Van Basin, Turkey. In this study, the life-table parameters reflecting population growth rate and predation rate of Chrysoperla carnea (Stephen) (Neuroptera: Chrysopidae), wh...

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Bibliographic Details
Published in:Phytoparasitica 2021-04, Vol.49 (2), p.217-228
Main Authors: Yılmaz, Mehmet, Polat Akköprü, Evin
Format: Article
Language:English
Subjects:
Age
Agriculture
Aphididae
Biological control
Biomedical and Life Sciences
Chromaphis juglandicola
Chrysoperla carnea
Chrysopidae
Ecology
Growth rate
Hemiptera
Life Sciences
Neuroptera
Offspring
Orchards
Parameter estimation
Pest control
Pests
Plant Pathology
Plant Sciences
Population growth
Predation
Predators
Statistical methods
Tables (data)
Walnuts
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Summary:Small walnut aphid ( Chromaphis juglandicola (Kaltenbach) (Hemiptera: Aphididae) is important pest in walnut orchards in Lake Van Basin, Turkey. In this study, the life-table parameters reflecting population growth rate and predation rate of Chrysoperla carnea (Stephen) (Neuroptera: Chrysopidae), which is one of the important predators of the pest, were determined. Life table parameters were estimated according to age-stage, two-sex life table method. Variances and standart errors of population parameters were obtained according to Bootstrap method. The values obtained for the intrinsic rate of increase ( r ), finite rate of increase ( λ ), net reproductive rate ( R 0 ) and mean generation time ( T ) were 0.072 d −1 , 1.070 d −1 , 62.48 offspring and 57.16 d, respectively of C. carnea fed on Chromaphis juglandicola . The net predation rate ( C 0 ) was determined as 212.9 aphids. Pradation projection was performed by using timing program to prevent the predator’s decrease in predation capacity and to determine the most appropriate release quantities and the appropriate interval between releases (to fill predation gaps) for biological control. The possible effects of the findings on the bio-controls of Chromaphis juglandicola by C. carnea were discussed. Results obtained can be used in pest management program that will be prepared for this pest.
ISSN:0334-2123
1876-7184
DOI:10.1007/s12600-020-00834-3