Abstract
The strawberry spider mite, Tetranychus turkestani Ugarov and Nikolski, is one of the most important pests of different field and glasshouse crops in Iran. The objectives of the current study were to determine developmental time, survival, reproduction and life table parameters of T. turkestani on three plant species: cowpea (Vigna unguiculata L.), white bean (Phaseolus lunatus L.) and red bean (Phaseolus calcaratus Roxb.) at 25 ± 1 °C, 60 ± 10 % RH and a photoperiod of 16:8 (L:D). The mean developmental time from egg to adult on cowpea, white bean and red bean were 11.99, 10.43 and 10.46 days, respectively. The total preadult survival rates varied from 75% to 80%. Females of T. turkestani oviposited means of 65.13, 44.03 and 32.69 eggs on cowpea, white bean and red bean, respectively, and had a mean longevity of 13.92, 9.08 and 7.23 days on the same three host plants. The intrinsic rate of increase (rm) varied from 0.18 to 0.21. The net reproductive rate (R0) was higher on cowpea (42.33) than on white bean (24.95) or red bean (14.16). Using these measures, T. turkestani performance was best on cowpea, worst on red bean, and intermediate on white bean.
Highlights
The strawberry spider mite, Tetranychus turkestani Ugarov & Nikolski, is one of the most important agricultural pests in the world (Jeppson et al 1975; Bolland et al 1998)
Mean total development duration of T. turkestani females and males from egg to adult were about 1.5 days longer on white bean and red bean compared to cowpea
There were no significant differences in the mean developmental time of female and male T. turkestani on white bean and red bean
Summary
The strawberry spider mite, Tetranychus turkestani Ugarov & Nikolski ( known as Tetranychus atlanticus McGregor), is one of the most important agricultural pests in the world (Jeppson et al 1975; Bolland et al 1998). It is a polyphagous species and feeds on 271 plant species belonging to more than 65 plant families (Migeon and Dorkled 2020). The short life span and high reproductive potential cause a fast-growing population that allows the mite to attain economic injury level in appropriate condition, resulting in a rapid decline of host plant yield (Carey and Bradley 1982; Tomczyk and Kropczynska 1985; Sohrabi and Shishehbor 2008; Karami Jamour et al 2012)
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