三种恒温条件下黑斑新绥螨的生物学特性及生命表

C. Kazak, S. Yildiz, E. Sekeroglu
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引用次数: 20

摘要

在20、25、30°C和65±10% RH条件下,测定了一般捕食性螨新绥螨的发育时间、存活率和繁殖力。以朱砂叶螨各生活期为食,黑木叶螨雌虫分别在9.7、8.0和5.9 d完成发育。在25°C和30°C条件下,雄性的总发育时间比在20°C条件下短。一般来说,随着温度的升高,黑松的产卵期、产卵期和产卵期都缩短了。在20°C条件下,黑云母的存活率最长,为80.5 d,其次是25°C和30°C条件下的67.0和57.6 d。在20℃、25℃和30℃条件下,交配雌虫平均每天产蛋0.9、1.3和1.4个,一生平均产蛋33.1、44.0和43.6个。在20、25和30°C时,雌雄比分别为0.57、0.57和0.54。随着温度的升高,本征增加速率(rm)从20℃时的0.123增加到30℃时的0.180。净繁殖率(Ro)在25°C时最高(25.0只/只),在20°C时最低(18.8只/只),而To随温度升高而降低,从20°C时的23.8 d降至30°C时的17.5 d。
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Biological characteristics and life tables of Neoseiulus umbraticusChant (Acari, Phytoseiidae) at three constant temperatures

The development time, survival and fecundity of the generalist predatory mite, Neoseiulus umbraticusChant, were determined at 20, 25, and 30 °C and 65 ± 10 % RH. N. umbraticus females completed development in 9.7, 8.0 and 5.9 days, respectively, using a diet of all life stages of Tetranychus cinnabarinus Boisduval. Total developmental times of males were relatively shorter at 25 and 30 °C than at 20 °C. In general, preoviposition, oviposition, and postoviposition periods of N. umbraticus shortened as temperature increased. The longest survival rate of N. umbraticus of 80.5 days occurred at 20 °C, followed by 67.0 and 57.6 days at 25 and 30 °C, respectively. Mated females laid an average 0.9, 1.3 and 1.4 eggs per female per day and 33.1, 44.0 and 43.6 eggs over their entire lives at 20, 25 and 30 °C, respectively. The sex ratios of this species were 0.57, 0.57 and 0.54 female (female+male) at 20, 25 and 30 °C, respectively. The intrinsic rate of increase (rm) became greater with rising temperatures from 0.123 at 20 °C to 0.180 at 30 °C. The net reproduction rate (Ro) was highest at 25 °C (25.0 females/female) and lowest at 20 °C (18.8 females/female), while To decreased with increasing temperatures, from 23.8 days at 20 °C to 17.5 days at 30 °C.

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