Key Mortality Factors of Prospalta capensis (Guenee) Infesting Safflower

Author: R.P. Palkar and V. K. Bhamare

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Abstract

Life tables are a method for tracking population birth and death rates over time. They can also be used to calculate the causes and rates of population death, which has a wide range of applications in ecology, particularly in agricultural ecosystems. Field life tables were organized for defining mortality factors of Prospalta capensis in rabi 2020-21. It was detected that P. capensis completed two generations on safflower. The life table of field-collected life stages discovered that early and late instar larval stages were the most susceptible ones for mortality due to Aleiodes sp. and unknown reasons. Apanteles sp. also caused some mortality in larvae. The negative value of the trend index (<1) during the first generation exhibited that the mortality factors were effective in causing the decline. The generation survival rate for the first and second generations was 0.12 and 0.38, respectively.

Keywords

Prospalta capensis, safflower, life tables, survival rate, trend index, Aleiodes sp., Apanteles sp

Conclusion

From the present investigation it is concluded that the key mortality factors viz., Aleiodes sp., Apanteles sp. and unknown reasons regulated the population of P. capensis infesting safflower.

References

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How to cite this article

R.P. Palkar and V. K. Bhamare (2023). Key Mortality Factors of Prospolta capensis (Guenee) Infesting Safflower. Biological Forum – An International Journal, 15(2): 500-503.