摘要
为明确以橡胶 3种不同叶螨为食物对加州新小绥螨生长发育和繁殖的影响,探讨其释放于橡胶园建立种群的可能性,在室内 27℃±1℃、RH 75%±5%和光周期 12L:12D条件下,采用特定时间生命表研究方法对以东方真叶螨、比哈小爪螨和六点始叶螨为食物时的加州新小绥螨试验种群特性进行了研究,并分析其种群特征指数的差异.结果表明:以东方真叶螨、比哈小爪螨和六点始叶螨为食物,加州新小绥螨的世代发育历期分别为 6.88 d、8.03 d和 13.16 d,三者之间差异显著;其存活率分别为 100%、100%和82.98%.加州新小绥螨雌成螨寿命和产卵量以 3种不同叶螨为食物时差异显著,以东方真叶螨为食物加州新小绥螨雌成螨寿命最长,产卵量最高,分别为34.59 d和42.38粒/雌;其次为比哈小爪螨,分别为26.01 d和 29.19粒/雌;而以六点始叶螨为食物不利于加州新小绥螨雌成螨的存活和产卵,其雌成螨寿命和产卵量分别仅为 13.60 d和 1.47粒/雌.以东方真叶螨为食物,加州新小绥螨的净增殖率和内禀增长率最大,分别为 28.700 和 0.273;其次为比哈小爪螨,分别为 19.661 和 0.231;而以六点始叶螨为食物其内禀增长率为-0.013.综上,东方真叶螨最利于加州新小绥螨的种群增长,其次为比哈小爪螨,而六点始叶螨单一发生的条件下加州新小绥螨的种群无法维持,但以 3种不同叶螨同时为食物时加州新小绥螨的种群增长还有待研究.
Abstract
Effects of three different spider mites of rubber as prey on the growth,development,and reproduction of Neoseiulus californicus(McGregor)were investigated to explore the possibility of releasing the predatory mites into rubber plantations to establish their populations.The tests were run in laboratory at 27℃±1℃,RH 75%±5%and a 12L:12D photoperiod,where N.californicus fed on Eutetranychus orientalis(Klein),Oligonychus biharensis(Hirst),and Eotetranychus sexmaculatus(Riley)were observed for time-specific life table parameters.The results showed that the developmental duration of N.californicus,fed on E.orientalis,O.biharensis and E.sexmaculatus,was 6.88 days,8.03 days and 13.16 days,respectively,with significant differences among them,and with survival rates of 100%,100%,and 82.98%,respectively.There were significant differences in the survival to adults and oviposition rates between N.californicus fed on three different diets,of which N.californicus female adults fed on E.orientalishas lived the longest(34.5 days)and deposited the most(42.38 eggs/female),followed by the group fed on O.biharensis(26.01 days and 29.19 eggs/female,respectively),and those fed on E.sexmaculatus showed the lowest performance(13.60 days and 1.47 eggs/female,respectively).With E.orientalis as diet,the net reproductive rate and intrinsic rate of increase of N.californicus were the highest,reaching 28.700 and 0.273,respectively,followed by the group fed on O.biharensis,being 19.661 and 0.231,respectively.In contrast,when E.sexmaculatus was used as the prey,intrinsic rate of increase of N.californicus was-0.013.In conclusion,E.orientalis is the most suitable prey for the population growth of N.californicus,and the next is O.biharensis,while E.sexmaculatus is not suitable to maintain the population of N.californicus.In addition,further studies are needed to determine the population growth of N.californicus fed on the three spider mites at the same time.
基金项目
国家天然橡胶产业技术体系(CARS-33-BC2)
中国热带农业科学院基本科研业务费专项(1630042022006)
海南省农业科学院省属科研院所技术创新项目(FW20230002)
国家科技期刊平台
NSTL
万方数据