| Autor: |
Kumar, N. T. Dileep, Biradar, A. P., Mallapur, C. P., Kulkarni, Shripad, Venugopal, C. K. |
| Zdroj: |
Journal of Experimental Zoology India; Jan2023, Vol. 26 Issue 1, p561-566, 6p |
| Abstrakt: |
A fixed plot survey was carried out at fortnightly intervals to study the population dynamics of citrus leaf miner from November 2020 to June 2022. The observation on the incidence of citrus leaf miner was recorded on 10 randomly selected plants by counting the number of live mines per shoot. The results of the study revealed that the citrus leaf miner incidence was noticed throughout the study period with increasing and decreasing trends in population. During the study period, the live mine population of citrus leaf miner ranged from 1.81 to 9.59 live mines per shoot. The peak activity of the pest was recorded during August, December, and January months. Minimum incidence was noticed during April and May months. The data on the correlation of live mines population of citrus leaf miner with abiotic environmental factors indicated that, a significantly negative correlation with maximum temperature (r = -0.730), minimum temperature (r = -0.721), rainfall (r = -0.474) and wind speed (r = -0.323). Whereas, a non-significant positive correlation was observed with morning relative humidity (r=0.216), evening relative humidity (r = 0.188) and sunshine hours (r = 0.005). The multiple linear regression analysis indicated that various weather parameters influenced the seasonal abundance of citrus leaf miner to an extent of 77.60 per cent. The information on the incidence and peak activity of the pest provides a valuable basis for the initiation of suitable control measures against citrus leaf miner. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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