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根据东方真叶螨在20℃、25℃、30℃、35℃,RH75%一95%条件下,以橡胶叶片为食料的发育与繁殖情况,分析了温度对东方真叶螨发育与繁殖的影响,卵、幼螨、前若螨、后若螨、全世代的发育历期及成螨寿命与温度的关系分别为:y后若=19.4285一1.2359t+0.0215t(R=0.9973)y全世代=108.4625一6.1425t+0.0969t2(R=0.9994)y寿命=42.951一1.0494t。在上述温度中,世代平均历期分别为24.39±0.82天,15.41±0.61天,11.45±1.22天和12.16±0.82天,以30℃为最短,雌螨平均产卵量分别为21.24±10.44粒,26.2±11.07粒,24.09±7.91粒,21.42±10.6粒。25℃时产卵量最多。25一30℃为东方真叶螨发育与繁殖的最适温度。根据有效积温推算,东方真叶螨在海南岛年可发生21一22代
The effects of temperature on the development and reproduction of Tetranychus cinnabarinus were analyzed based on the development and reproduction of Tetranychus cinnabarinus at 20 ℃, 25 ℃, 30 ℃, 35 ℃ and RH75% -95% , Eggs, larvae, anterior pomes, mites, the developmental age and adult life span of mites are respectively: y = 19.4285-1.2359t + 0.0215t (R = 0.9973 ) Y generation = 108.4625 a 6.1425t + 0.0969t2 (R = 0.9994) y life = 42.951 a 1.0494t. At the above temperatures, the average generations were 24.39 ± 0.82 days, 15.41 ± 0.61 days, 11.45 ± 1.22 days and 12.16 ± 0.82 days, respectively, at 30 ° C For the shortest, the average fecundity of female mites were 21.24 ± 10.44, 26.2 ± 11.07, 24.09 ± 7.91 and 21.42 ± 10.6, respectively. 25 ℃, the largest number of eggs. 25 a 30 ° C for the true oriental spider mite development and reproduction of the optimum temperature. According to the calculation of effective accumulated temperature, oriental spider mites in Hainan Island can occur in 21 to 22 generations