The life tables of Chrysomphalus aonidum and Coccus hesperidum under laboratory conditions

Authors : Yakup ÇELİKPENÇE, Ali Kemal BİRGÜCÜ, İsmail KARACA

Pages : 36-43

Doi:10.31015/jaefs.18006

View : 17 | Download : 6

Publication Date : 2018-04-10

Article Type : Research Paper

Abstract :Numerous species of insect pest have been found causing serious damage to citrus plants in Turkey. Chrysomphalus aonidum insert ignore into journalissuearticles values(L.); insert ignore into journalissuearticles values(Diaspididae);, and Coccus hesperidum L. insert ignore into journalissuearticles values(Coccidae); from Hemiptera among them are potential insect pest, which cause huge economic losses to citrus. The current study investigated life table parameters of both pests, which included net production rate insert ignore into journalissuearticles values(R 0 );, intrinsic rate of increase insert ignore into journalissuearticles values(r m );, mean generation time insert ignore into journalissuearticles values(T 0 );, doubling time insert ignore into journalissuearticles values(T 2 );, total production rate insert ignore into journalissuearticles values(GRR); and finite rate of increment insert ignore into journalissuearticles values(λ);. Results showed that net production rate insert ignore into journalissuearticles values(R 0 ); of both C. aonidum and C. hesperidum were 74.001 and 185.295 female/female/offspring, respectively. The intrinsic rate of increase insert ignore into journalissuearticles values(r m ); for the pests was calculated as 0.052 and 0.047 female/female/day, respectively. Similarly, the mean generation time insert ignore into journalissuearticles values(T 0 ); was recorded 82.030 days for C. aonidum and 110.985 days for C. hesperidum . The doubling time insert ignore into journalissuearticles values(T 2 );, gross reproduction rate insert ignore into journalissuearticles values(GRR);, and finite rate of increase insert ignore into journalissuearticles values(λ); were recorded 13.320 days, 142.555 eggs/female and 1.054 egg/female/day respectively for C. aonidum whereas, in case of C. hesperidum , the aforementioned values were calculated as 14.732 days, 579.047 eggs/female and 1.048 eggs/female/day, respectively.
Keywords : Brown soft scale, circular scale, life table, pumpkin