J Econ Entomol. 2014 Apr;107(2):614-22. doi: 10.1603/ec11205.
It is well recognized that the quality of host plants affects the development and survival of twospotted spider mite Tetranychus urticae Koch. The life table parameters of T. urticae, on six cultivars of common bean (Phaseolus vulgaris L.) (chiti Khomein, chiti Ks21189, red Akhtar, red Ks31169, white Pak, and white G11867) were studied at constant laboratory conditions (27 +/- 2 degrees C, 70 +/- 5% RH and 16:8 L:D). Total development times of immature males and females were significantly influenced by bean cultivar. T. urticae laid significantly more eggs per day on red Akhtar (16.16) than on the other cultivars. The mean generation time ranged from 23.37 to 34.82 d, and a significant varietal effect was seen. Percentage of egg hatchability oftwospotted spider mite ranged from 88.25 to 94.20%. The highest intrinsic rate of increase, was recorded on red Akhtar (0.269 +/- 0.031) and the lowest value was obtained on white Pak (0.129 +/- 0.048). In addition, net reproductive rate and finite rate of increase of the twospotted spider mite had the highest value on red Akhtar: 62.38 +/- 1.05 and 1.30 +/- 1.02, respectively. The lowest values of these parameters were recorded on white Pak as 26.11 +/- 1.40 and 1.13 +/- 1.10, respectively. Doubling time varied significantly on different cultivars and the lowest and highest values were obtained on red Akhtar and white Pak, respectively. Our findings revealed that white beans (Pak and G11867) were less suitable cultivars, suggesting that they are more resistant to the twospotted spider mite than the other cultivars.
众所周知，寄主植物的质量会影响二斑叶螨 Tetranychus urticae Koch 的发育和生存。在恒定的实验室条件下（27±2°C、70±5%RH 和 16:8 L:D），研究了六种植株的普通豆（Phaseolus vulgaris L.）（chiti Khomein、chiti Ks21189、red Akhtar、red Ks31169、white Pak 和 white G11867）上 T. urticae 的生命表参数。雌雄若虫的总发育时间受豆科植物品种的显著影响。T. urticae 在 red Akhtar（16.16）上每天产卵量显著多于其他品种。平均世代时间范围为 23.37 至 34.82 天，且存在显著的品种效应。二斑叶螨的卵孵化率范围为 88.25%至 94.20%。最高的内禀增长率记录在 red Akhtar（0.269±0.031）上，而在 white Pak 上获得的最低值（0.129±0.048）。此外，二斑叶螨的净生殖率和有限增长率在 red Akhtar 上最高：分别为 62.38±1.05 和 1.30±1.02。这些参数的最低值记录在 white Pak 上，分别为 26.11±1.40 和 1.13±1.10。不同品种上的倍增时间差异显著，最低和最高值分别在 red Akhtar 和 white Pak 上获得。我们的研究结果表明，白豆（Pak 和 G11867）是较不适宜的品种，这表明它们比其他品种更能抵抗二斑叶螨。
