Abstract
A survey of mites was conducted on pear trees in Amritsar region from February 2018 – November 2019 at three different locations. Three species of phytophagous mites belonging to the family Tetranychidae and Tenuipalpidae and five species of predatory mites of Phytoseiidae, Stigmaeidae and Cunaxidae were recorded from Khalsa College Amritsar, Guru Nanak Dev University and Government garden/nursery (Attari) locations. Among the three locations, maximum mite population was observed at Attari with dominant incidence of Tetranychidae and least of Cunaxidae. The incidence of the mites increases with increase in temperature and was highest during hot dry summer season. Population started decreasing due to rains in monsoon season. However, the mite population was completely absent during cold winter season. The highest peak of mite population was recorded at maximum temperature of 42°C and minimum of 25°C with no rainfall. There was significant positive correlation of mite abundance with temperature and negative correlation with rainfall at all the three locations. The coefficient of determination of all the mites with abiotic factors had significant contribution in regulating the mite population.
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