Study of demographic parameters of the predatory mite Amblyseius swirskii Athias-Henriot (Acari: Phytoseiidae) on dried fruit mite Carpoglyphus lactis Linnaeus (Acari: Astigmata) for mass rearing
A. Hosseininia, Zahra Mojib Haghe Ghadam, Mohamad Hossein Azimi, M. Khanjani
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引用次数: 0
Abstract
Amblyseius swirskii Athias-Henriot predatory mite is one of the most common biological control agents for two-spotted spider mite, greenhouse whitefly and onion thrips in greenhouses, which is widely used in greenhouse crops around the world. The importance of this study is to facilitate the mass rearing of this predatory mite. To evaluate the mass rearing of this predator, its life table on eggs, nymphal stages and adult mites of Carpoglyphus lactis Linnaeus under conditions of 25 °C, 70 ±5% RH, 16:8 (L: D) was examined. Demographic parameters of A. swirskii including: r , λ and R 0 when feeding eggs, nymphal stages and adult were estimated. Therefore, r parameter for feeding at different growth stages of dried fruit mite was estimated in mass production part. In addition, 20 treatments with different compounds with presence and 20 treatments without presence of dried fruit mite with three replications in a completely randomized block design with mass rearing method and intrinsic rate of increase ( r ) for all treatments were estimated and analyzed. Survey of egg life table, nymphal and adult stages of dried fruit mite showed that A. swirskii has the ability to mass rearing on all three developmental stages of dried fruit mite. Life table parameters, A. swirskii including: r , λ and R 0 when feeding on dried fruit eggs were estimated to be 0.165 d -1 , 1.173 d -1 , and 12.95 eggs/individual, respectively. The results of life table parameters, especially r , showed that dried fruit mite has the potential to be a suitable intermediate host. Furthermore, the artificial diet of treatment number 20 without the presence of dried fruit mites is suitable for mass breeding of this predatory mite as an alternative method.
威氏钝绥螨(Amblyseius swiskii Athias-Henriot)是温室中最常见的双斑蜘蛛螨、温室白蝇和洋葱蓟马的生物防治剂之一,在世界各国的温室作物中得到广泛应用。本研究的重要意义在于促进该掠食性螨的大规模饲养。在25°C, 70±5% RH, 16:8 (L: D)条件下,测定了该捕食者在乳石石雕卵、稚螨和成螨上的生命表。测定了采食卵、若虫期和成虫期的种群统计参数r、λ和r0。因此,在量产部分对干果螨不同生长阶段的取食r参数进行了估算。此外,采用完全随机区组设计,采用群体饲养法,对各处理的内在增长率(r)进行了3个重复的估计和分析,分析了20个不同化合物存在和20个不存在干果螨的处理。对干果螨的卵龄表、若虫期和成虫期的调查表明,褐刺螨在干果螨的三个发育阶段都有大量繁殖的能力。采食干果卵时的生命表参数r、λ和r0分别为0.165 d -1、1.173 d -1和12.95 d /个。果脯螨的生命表参数,特别是r值的测定结果表明,果脯螨有潜力成为适宜的中间寄主。另外,不含干果螨的20号处理人工饲粮也可作为该捕食性螨的一种替代繁殖方法。