Effect of Abiotic Factors on Seasonal Incidence of Sucking Pests on Chilli

Author: Neha Girish Matra, S.D. Bantewad, Saif Ali Khan, Anjali P. Sharma and Sourabh Maheshwari

Download PDF

Abstract

A field experiment was conducted at experimental farm of Department of Agricultural Entomology, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, during the kharif season 2022-23 to study seasonal incidence of sucking pests on chilli in relation to weather parameters. The experiment was conducted in unprotected plot which was non- replicated. The observations on seasonal incidence of aphids, thrips, whiteflies, leaf hoppers were recorded. Aphids and leaf hoppers activity commenced in second week of August, while, thrips and whiteflies activity started in first week of August. The peak activity of aphids was observed during last week of August (14.60 aphids/3 leaves), whereas, thrips reached peak during September third week (17.20 thrips/3 leaves). Further, whiteflies and leaf hoppers reached peak (8.80 whiteflies/3 leaves) and (6.60 hoppers /3 leaves), respectively during September second week. The aphids showed non-significant negative correlation with rainfall and morning relative humidity, while non-significant positive correlation with maximum temperature, minimum temperature, evening relative humidity and wind speed. The thrips showed non-significant negative correlation with rainfall, while non-significant positive correlation with the maximum temperature, minimum temperature, evening relative humidity and wind speed. The whiteflies showed non-significant positive correlation with the rainfall, maximum temperature, minimum temperature, morning relative humidity, evening relative humidity and wind speed. The leaf hoppers population showed non-significant negative correlation with maximum temperature, while non-significant positive correlation with the rainfall, minimum temperature, evening relative humidity and wind speed etc.

Keywords

Correlation, aphids, thrips, whiteflies, leaf hoppers, Capsicum annum

Conclusion

The population of aphids showed non-significant negative correlation with rainfall, morning relative humidity and non-significant positive correlation with maximum temperature, minimum temperature, evening relative humidity and wind speed. The thrips population showed non-significant negative correlation with rainfall, while non-significant positive correlation with the maximum temperature, minimum temperature, evening relative humidity and wind speed. The whiteflies population showed non significant positive correlation with the rainfall, maximum temperature, minimum temperature morning relative humidity, evening relative humidity and wind speed and leaf hoppers population showed non significant negative correlation with maximum temperature, while non-significant positive correlation with the rainfall, minimum temperature, evening relative humidity and wind speed.

References

-

How to cite this article

Neha Girish Matra, S.D. Bantewad, Saif Ali Khan, Anjali P. Sharma and Sourabh Maheshwari (2023). Effect of Abiotic Factors on Seasonal Incidence of Sucking Pests on Chilli. Biological Forum – An International Journal, 15(10): 925-928.