Other language title :
زﯾﺴﺖﺷﻨﺎﺳﯽ ﻣﻘﺎﯾﺴﻪاي و ﻣﯿﺰان رﺷﺪ دو ﮐﻨﮥ ﺷﮑﺎرﮔﺮ، Cydnoseius negevi و Neoseiulus ﭘﺮورش داده ﺷﺪه روي دو رﻗﻢ ﻧﺨﻮد ،(Acari: Phytoseiidae) californicus
Title of article :
Comparative biology and growth rate of the two predatory mites, Cydnoseius negevi and Neoseiulus californicus (Acari: Phytoseiidae), reared on two pea cultivars
Author/Authors :
Abdel-Khalek, Amira A est and Plant Protection Department - National Research Centre (NRC) - Dokki, Cairo, Egypt , Abou-Elella, Gomaa M est and Plant Protection Department - National Research Centre (NRC) - Dokki, Cairo, Egypt , El-Saiedy, Elsayed est and Plant Protection Department - National Research Centre (NRC) - Dokki, Cairo, Egypt
Abstract :
Laboratory experiments were conducted to investigate the influence of two pea cultivars, regular and sweet as substrates on biological aspects and life table analysis of two phytoseiid species, Cydnoseius negevi (Swirski & Amitai) and Neoseiulus californicus (McGregor) fed on nymphs of Tetranychus urticae Koch under laboratory conditions of 27 ± 1 ℃, 70–80 % RH and 16L:8D h photoperiod. The development was faster and reproduction of N. californicus was higher compared with C. negevi. The predatory mite N. californicus showed the highest fecundity when reared on sweet pea cultivar, while C. negevi exhibited the lowest fecundity when reared on regular pea cultivar. Rearing C. negevi on the two pea cultivars led to the greatest female longevity than that of N. californicus. Feeding capacity of females during oviposition period was the highest for N. californicus on sweet pea, but it was the lowest for C. negevi on regular pea cultivar. Life table analysis showed that the shortest mean generation time (T) for N. californicus (13.01 days) compared with C. negevi (14.65 days) on sweet pea cultivar. Also, the intrinsic rate of increase (rm) of N. californicus was 0.29 female/female/day, but the rm value was 0.24 female/female/day for C. negevi on sweet pea substrate. Therefore, it can be concluded that the two predatory mites, C. negevi and N. californicus, are efficient biological control agents against T. urticae on the two pea cultivars.
Farsi abstract :
آزﻣﺎﯾﺶﻫﺎﯾﯽ ﺑﺮاي ﺑﺮرﺳﯽ اﺛﺮ دو رﻗﻢ ﻧﺨﻮد، ﻣﻌﻤﻮﻟﯽ و ﺷﯿﺮﯾﻦ ﺑﻪ ﻋﻨﻮان ﺑﺴﺘﺮﻫﺎﯾﯽ ﺑﺮاي ﺗﺠﺰﯾﻪ و ﺗﺤﻠﯿﻞ ﺟﻨﺒﻪﻫﺎي زﯾﺴﺘﯽ و ﺟﺪول زﻧﺪﮔﯽ دو ﮔﻮﻧﻪ ﻓﯿﺘﻮزﺋﯿﺪ، )Cydnoseius negevi (Swirski & Amitai و )Neoseiulus californicus (McGregor ﺑﺎ ﺗﻐﺬﯾﻪ از ﭘﻮرهﻫﺎي Tetranychus urticae Koch در ﺷﺮاﯾﻂ آزﻣﺎﯾﺸﮕﺎﻫﯽ 27 ± 1 درﺟﮥ ﺳﻠﺴﯿﻮس، 80-70 درﺻﺪ رﻃﻮﺑﺖ ﻧﺴﺒﯽ و دورة ﻧﻮري: ﺗﺎرﯾﮑﯽ 8:16 N. californicus رﺷﺪي ﺳﺮﯾﻊﺗﺮ و ﺗﻮﻟﯿﺪﻣﺜﻠﯽ ﺑﯿﺸﺘﺮ داﺷﺖ. ﮐﻨﮥ ﺷﮑﺎرﮔﺮ C. negevi در ﻣﻘﺎﯾﺴﻪ ﺑﺎ N. californicus ﺳﺎﻋﺖ اﻧﺠﺎم ﺷﺪ. ﮔﻮﻧﮥ وﻗﺘﯽ روي رﻗﻢ ﻧﺨﻮد ﺷﯿﺮﯾﻦ ﭘﺮورش داده ﺷﺪ ﺑﯿﺸﺘﺮﯾﻦ ﺑﺎرآوري را داﺷﺖ در ﺣﺎﻟﯽﮐﻪ ﮐﻨﮥ C. negevi ﮐﻢﺗﺮﯾﻦ ﺑﺎرآوري را روي رﻗﻢ ﻧﺨﻮد ﻣﻌﻤﻮﻟﯽ ﻧﺸﺎن داد. ﭘﺮورش ﮔﻮﻧﮥ C. negevi روي دو رﻗﻢ ﻧﺨﻮد ﺑﻪ ﺑﯿﺸﺘﺮﯾﻦ ﻃﻮل ﻋﻤﺮ ﻣﺎدهﻫﺎ ﻧﺴﺒﺖ ﺑﻪ N. californicus ﻣﻨﺠﺮ ﺷﺪ. ﻇﺮﻓﯿﺖ ﺗﻐﺬﯾﻪاي ﻣﺎدهﻫﺎي N. californicus در دورة ﺗﺨﻤﮕﺬاري روي رﻗﻢ ﻧﺨﻮد ﺷﯿﺮﯾﻦ ﺑﯿﺸﺘﺮﯾﻦ ﺑﻮد اﻣﺎ روي رﻗﻢ ﻧﺨﻮد ﻣﻌﻤﻮﻟﯽ ﺑﺮاي ﮔﻮﻧﮥ .C N. روي رﻗﻢ ﻧﺨﻮد ﺷﯿﺮﯾﻦ ﺑﺮاي (T) ﮐﻢﺗﺮﯾﻦ ﺑﻮد. ﺗﺠﺰﯾﻪ و ﺗﺤﻠﯿﻞ ﺟﺪول زﻧﺪﮔﯽ ﻧﺸﺎن داد ﮐﻪ ﮐﻢﺗﺮﯾﻦ ﻣﯿﺎﻧﮕﯿﻦ ﻃﻮل دورة ﻧﺴﻞ negevi californicus )13/01 روز( در ﻣﻘﺎﯾﺴﻪ ﺑﺎ C. negevi )14/65 روز( اﺗﻔﺎق اﻓﺘﺎد. ﻫﻤﭽﻨﯿﻦ ﻣﯿﺰان ذاﺗﯽ اﻓﺰاﯾﺶ )rm( ﮐﻨﮥ N. californicus روي ﺑﺴﺘﺮ ﻧﺨﻮد ﺷﯿﺮﯾﻦ 0/29 ﻣﺎده/ﻣﺎده/روز ﺑﻮد اﻣﺎ اﯾﻦ ﻣﯿﺰان ﺑﺮاي ﮐﻨﮥ C. negevi 0/24 ﺑﻮد. ﺑﻨﺎﺑﺮاﯾﻦ ﻣﯽﺗﻮان ﻧﺘﯿﺠﻪ ﮔﺮﻓﺖ ﮐﻪ دو ﮐﻨﮥ ﺷﮑﺎرﮔﺮ .Cnegevi و N. californicus ﺑﺮاي T. urticae روي دو رﻗﻢ ﻧﺨﻮد ﻋﻮاﻣﻞ ﻣﻬﺎر زﯾﺴﺘﯽ ﻣﺆﺛﺮياﻧﺪ.
Keywords :
Development , intrinsic rate of increase , longevity , phytoseiid mites , Tetranychus urticae
