International Journal of Entomology Research

International Journal of Entomology Research


International Journal of Entomology Research
International Journal of Entomology Research
Vol. 7, Issue 1 (2022)

Influence of weather parameters on the population of two spotted spider mite, Tetranychus urticae koch. on tomato


V Sathyaseelan, M Senthilkumar, M Pazhanisamy, Chand Asaf

Tomato, Solanum lycopersicum L. is a prime vegetable crop of tropical and subtropical zone of the world. Tomato is cultivated throughout the year under varied agro ecosystems of India. It is obvious that the quality and quantity of the tomato was drastically reduced by various insect and non-insect pests. Among these pests, two spotted spider mite, Tetranychus utricae (Koch) cause drastic yield loss to the tomato crop. Study was carried out to document the influence of weather parameters on the population buildup of two spotted spider mite on tomato crop. In summer season, correlation coefficient between the population of two spotted spider mite and weather parameters indicated that the maximum and minimum temperature (r= +0.732) had a highly significant positive association. Relative humidity (r= -0.367) exhibits a significantly negative association. Whereas, the positively non-significant association was recorded in Hours of Bright Sunshine (r= +0.013), negative with Rainfall (r= -0.1913) and highly significant positive correlation with wind velocity (r= +0.547) respectively. The regression equation indicated that an increase in 1% relative humidity decrease the population of T. urticae at 0.675 numbers. An increase in 1°C of maximum and minimum temperature would lead to an increase of 1.342 and 1.592 numbers of two spotted spider mite. However, an increase in rainfall by 1mm/week resulted to decrease in the incidence level of mite by 0.02 is also to be related with the wind velocity. The adoption of pest management tactics is economically feasible to the farmers.
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How to cite this article:
V Sathyaseelan, M Senthilkumar, M Pazhanisamy, Chand Asaf. Influence of weather parameters on the population of two spotted spider mite, Tetranychus urticae koch. on tomato. International Journal of Entomology Research, Volume 7, Issue 1, 2022, Pages 30-32
International Journal of Entomology Research International Journal of Entomology Research