Population Dynamics of Aphid (Aphis Gossypii G.) on Tomato Agro-Ecosystem in Faisalabad Region
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- Tomato, Aphis Gossypii, Weather Parameters, Correlation, Abiotic Factors
- Shakeel, Muhammad; Akram, Waseem; Hamza, Ameer; Ali, Muhammad Waqar; Ali, Arif
- This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. CC BY-NC-SA 4.0 Creative Commons License: https://creativecommons.org/licenses/by-nc-sa/4.0/
- The occurrence of climate changes is evident from increase in global average temperature, changes in the rainfall pattern and extreme climatic events. These seasonal and long term changes would affect the fauna, flora and population dynamics of insect pests. The abiotic parameters are known to have direct impact on insect population dynamics through modulation of developmental rates, survival, fecundity, voltinism and dispersal. The study was carried out in Vegetable fields of Ghulam Muhammad Abad, Faisalabad using randomized complete block design (RCBD) during Rabi season 2009-10. The observations on aphid incidence were carried out simultaneously on 5 randomly selected plants per plot, taking 3 leaves, that is, each from upper, middle and lower strata. Aphid population showed significant negative correlation with minimum and maximum temperature, whereas significant positive correlation with relative humidity, and non-significant negative correlation with rainfall. The determination of effects of different weather factors on population of aphids in tomato was essential for effective pest management.
Full text: IJRAS_61_Final.pdf