Influence of Alternative Food Sources on Different Biological Aspects of Cydnoseius negevi (Acari: Phytoseiidae) تأثير مصادر الغذاء البديلة على النواحي البيولوجيه المختلفه للمفترس الأکاروسي Cydnoseius Negevi (Acari: Phytoseiidae)

Abstract

The predatory mite Cydnoseius negevi (Swirski & Amitai), (Family Phytosidae), is a predaceous mite of different mite and insect pests, such as two-spotted spider mite and castor whitefly. This work aimed to study the role of C. negevi in controlling the four arthropod pests, Spodoptera littoralis (Boisduval), Trialeurodes ricini (Misra), and Anagasta (Ephestia) kuehniella (Keller) as well as spider mite Tetranychus urtica (Koch) compared with date palm pollen as food options under controlled conditions. The predatory mite C. negevi can feed and complete its life span successfully on these foods. Trialeurodes ricini and A. kuehniella eggs prolonged the life cycle of C. negevi. Likewise, the shortest period observed when male and female fed on eggs of T. urtica. Egg production of the tested mite was the highest when it fed on pollen, while oviposition was lower when the predatory mite fed on T. ricini. Food sources also affected all life tables where spider mite eggs and pollen grains were the most favorable foods increased Ro, rm, erm and GRR values. Insect eggs prolonged T and Dt times of the tested mite C. negevi. Therefore, C. negevi could be reared successfully on date palm pollen and eggs of S. littoralis, T. ricini, A. kuehniella and T. urticae.

Biological Aspects and Life Table Parameters of the Predatory Mite, Cydnoseius negevi (Swirski& Amitai) Reared on Different Diets

“…These results proved that spider mites and date palm pollen were the most preferable food source, while different insect eggs were not as much. These observations agree with those obtained by (Nomikou et al, 2001;Momen and El-Sawi, 2008;Fouly et al, 2011;El-Shammery, 2018;Fouly et al, 2021). In conclusion, previous studies proved the ability of predaceous phytoseiid mites, C. negevi to live and survive on different food types (Tanigoshi and Griffiths, 1982;Messelink et al, 2005;Winner et al, 2008Al-Shammery, 2011, Fouly et al 2011and Fouly et al2021.…”