Journal of Pest Science (2009) 82, 163-170

Amin Sedaratian, Yaghoub Fathipour and Saeid Moharramipour (2009)
Evaluation of resistance in 14 soybean genotypes to Tetranychus urticae (Acari: Tetranychidae)
Journal of Pest Science 82 (2), 163-170
Abstract: The effect of 14 soybean genotypes (Sahar, Sari, Williams, Tellar, Hill, Clark, Tms, Dpx, Zane, 032, 033, L₁₇, Ks3494 and I27) on life history and fecundity of two-spotted spider mite (TSSM), Tetranychus urticae Koch, was investigated. All experiments were conducted at 28 ± 1°C, 65 ± 5% r.h. and a photoperiod of L16:D8 h. The highest development time was 8.41 and 8.78 days for male and female on I27, and the lowest value of this period was obtained on Sahar and Ks3494 for male and female, respectively (7.11 and 7.60 days, respectively). The TSSM fecundity varied from 33.62 to 153.82 eggs per female, which was minimum on 032 and maximum on L₁₇. The comparison of TSSM biological parameters on different soybean genotypes and cluster analysis of these parameters demonstrated that Ks3494, 032, Dpx and Sahar were the most resistant genotypes to this pest. An antibiosis process could be, at least in part, the cause of this variation. Knowledge of the extent of susceptibility or resistance of genotypes and biology of a pest on a crop are fundamental components of integrated pest management (IPM) programs for any crop. Implication of these observations in the control of TSSM on soybean is discussed.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Yaghoub Fathipour, Saeid Moharramipour

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Tetranychus urticae	Soybean (Glycine max)