| Life table parameters of Phytoseius plumifer (Acari:Phytoseiidae) fed on different pollen grains |
| Paper ID : 1029-IPCA5 (R2) |
| Authors |
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Saba Shamsedin Beyranvand *1, Shahriar jafari2, Yaghub fathi por3, Narges Eyni4 1Ph.D. Student 2. Department of Plant Protection, Faculty of Agriculture, Lorestan University, Khorramabad, Iran 3Department of Entomology, Faculty of Agriculture,Tarbiat Modares University, Tehran, Iran, 4Lorestan Agricultural and Natural Resources Research and Education Center, Khorramabad, Iran, |
| Abstract |
| Mass rearing process of predators for use in integrated pest management programs requires finding an optimal alternative food source. Pollen grains of plants are considered as one of the main alternative food sources in the mass rearing process and also during prey scarcity of predatory insects and mites. This study was performed to comparison the suitability of seven pollen grains of maize, marshmallow, pistachio, cypress, lilium, olive, thorn apple, walnut and saffron and as well as the phytophagous mite Tetranychus turkestani Ugarov & Nycolsky (Acari:Tetranychidae), Ephestia kuehniella Zeller (Pyrlidae) eggs, Tyrophagus putrescentiae (Acari:Acaridae) and Sitotroga cerealella Olivier (Gelechiidae) eggs for rearing the predatory mite Phytoseius plumifer (Canestrini and Fanzago) under laboratory conditions (25 ±1°C, 65±5% RH, 16L:8D) photoperiod. The all data was analyzed using the two-sex life table theory. The results show that the second generation of P. plumifer was able to develop and reproduce on pistachio, olive, saffron, thorn apple and walnut pollen grains and also T. turkestani. Phytoseius plumifer showed the longest APOP (adult pre-oviposition period) and TPOP (total pre-ovipositional period) on T. turkestani. The shortest and longest oviposition days were observed on T. turkestani and Saffron, important data respectively. The highest and lowest female longevity was found on saffron and walnut pollen, respectively. The highest male longevity was on thorn apple and walnut pollen and the lowest one was on T. turkestani. The highest and lowest values of intrinsic rate of natural increase (rm) were observed on thorn apple pollen and T. turkestani, respectively. The sex ratio (female percentage) of P. plumifer varied from 40% on olive to 54.16 % on pistachio. Feeding on pollen of thorn apple, pistachio, saffron and olive lead to the best performance of P. plumifer and this pollen grains could be used to improve the experimental and commercial mass rearing programs of this predator. |
| Keywords |
| Alternative food, main prey, sex ratio, mass rearing, Phytoseius plumifer |
| Status: Abstract Accepted |
