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Journal of Entomology and Zoology Studies
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ISSN Print: 2349-6800 | ISSN Online: 2320-7078

Journal of Entomology and Zoology Studies

2017, Vol. 5, Issue 5
Counteraction effect between Tetranychus urticae Koch and Eotetranychus lewisi (McGregor) on strawberry

Paramjit Kaur and Frank G Zalom

The competitive interaction of Tetranychus urticae Koch and Eotetranychus lewisi (McGregor) on strawberry was studied at different temperatures (15, 20 and 25 °C). The results showed that the T. urticae was dominant on E. lewisi on strawberry. The total population emerged of T. urticae (2.33 at 15 °C; 89.00 at 20 °C; 101.00 at 25 °C) was more as compared to E. lewisi (1.67 at 15 °C; 14.67 at 20 °C; 19.67 at 25 °C) on strawberry. In contrast to strawberry, the population of E. lewisi was found to be significantly dominant on T. urticae on castor bean leaf. The population of T. urticae was 5.13, 6.07 and 1.39 times greater than E. lewisi at 25, 20 and 15 °C, respectively on strawberry. Three conclusions were made from the recorded competitive interactions between these mites: the preferred host for T. urticae is strawberry; E. lewisi can survive better than T. urticae at low temperatures if a favourable host is available, and T. urticae is dominant compared to E. lewisi on strawberry. E. lewisi completed its life cycle on strawberry leaves and it increased in abundance, so its pest status potential in strawberry cultivation was confirmed.
Pages : 653-656 | 412 Views | 8 Downloads
How to cite this article:
Paramjit Kaur, Frank G Zalom. Counteraction effect between Tetranychus urticae Koch and Eotetranychus lewisi (McGregor) on strawberry. J Entomol Zool Stud 2017;5(5):653-656.
Journal of Entomology and Zoology Studies
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