数字农科院2.0

Demography and predatory potential of Orius strigicollis on eggs of Plutella xylostella at two temperatures

文献类型： 外文期刊

作者： Shakeel Ur Rehman;Xingfu Jiang;Mahnoor Saleem;Xingmiao Zhou;Bangqing Chen;Khalid Ali Khan;Ibrahim Osman Ibrahim;Hamed A. Ghramh

作者机构：

关键词： Biological control;Demography;O. strigicollis;P. xylostella;Predation potential;Temperature

期刊名称： PeerJ

ISSN： 2167-8359

年卷期： 2024 年 12 卷 10 期

页码：

收录情况： SCIE（2024版）

摘要： Background. The polyphagous predatory bug Orius strigicollis Poppius (Heteroptera: Anthocoridae) is an active predator used to control many insect pests of agricultural crops. Orius species are significantly affected by the type of food and temperature. Method. A study of O. strigicollis feeding on Plutella xylostella L. (Lepidoptera: Plutellidae) eggs in climate chambers at 28 and 32 ◦C, 70 ± 5% relative humidity, 16:8 photoperiod, was conducted to determine the effects of different temperatures on the predation activity, biological characteristics and demographic parameters of O. strigicollis. Twosex-MS Charts were used to determine the age-stages and characteristics of this species. Results. The results showed that the daily consumption of pre-adults on eggs of P. xylostella was highest at 28 ◦C, and at this temperature, there was a greater probability that O. strigicollis would survive to adulthood (42.5%) than at 32 ◦C (25.0%). It has also been found that at 28 ◦C there was a long oviposition period (9.38 days) and the greatest female fecundity (44.2 eggs/female) In addition to the highest life expectancy of O. strigicollis (16.96 days) at 28 ◦C, the intrinsic rate of increase (0.087 d−1) was also highest. According to our results, O. strigicollis has the potential to grow and develop on the eggs of P. xylostella at 28 ◦C and, therefore, could potentially be used as a biological control agent in integrated pest management (IPM) programs.

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