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Vol. 12, Special Issue 6 (2023)

Impact of abiotic weather parameters on seasonal incidence of two spotted spider mite (Tetranychus urticae Koch) and predatory mite (Phytoseiulus persimilis) studied on different French bean varieties at Varanasi

Author(s):
Sandeep Kumar Sathua and Dr. RN Singh
Abstract:
The current aimed towards screening of six popular french bean varieties against incidence of T. urticae and its predator P.persimilis across the crop season. The meteorological data like temperature, relative humidity and rainfall were collected to identify the degree of correlation of mite population over different bean varieties with various abiotic parameters. The highest no. of T. urticae / plant was observed on variety Arka Komal (25.65±5.10) followed by Arka Suvidha (23±3.64) and HUR-137 (21.4±4.32). The maximum no. of P. persimils/ plant found on variety Arka Komal (2.25±0.25) followed by Arka Suvidha (2.25±0.18). The coefficient of correlation (r) value showed significant strong positive correlation of T. urticae and P.persimilis to Min, Max and Avg. temperature at p=0.05, whereas both species of mites showed negative correlation with relative humidity, which varied from of 63.0 to 85.5% during the crop period. No rainfall received during the crop period so, the relation couldn’t be studied.
Pages: 177-180  |  148 Views  76 Downloads
How to cite this article:
Sandeep Kumar Sathua and Dr. RN Singh. Impact of abiotic weather parameters on seasonal incidence of two spotted spider mite (Tetranychus urticae Koch) and predatory mite (Phytoseiulus persimilis) studied on different French bean varieties at Varanasi. The Pharma Innovation Journal. 2023; 12(6S): 177-180.
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