scholarly journals Life tables, key factor analysis and density relations of natural populations of the spotted maize stemborer, Chilo partellus (Lepidoptera: Crambidae), under different cropping systems at the Kenyan coast

Author(s):  
C.A.O. Midega ◽  
C.K.P.O. Ogol ◽  
W.A. Overholt
2017 ◽  
Vol 8 ◽  
pp. 59 ◽  
Author(s):  
E. T. Kapatos ◽  
E.T. Stratopoulou

A series of life-tables for the population of Saisselia oleae (Oliv.) (Homoptera: Coccidae) during five yearly generations (1981-86) were constructed in Corfu. Key-factor analysis carried out on the life-table data indicated that mortality of young stages during summer, caused mainly by the high temperatures, and mortality during spring, caused mainly by predation, determine total population change within each generation. These two mortality factors are the predominant factors of the population dynamics of S. oleae determining population fluctuations. The other mortality factors of the population system of S. oleae were less important. Summer parasites and egg predators, in particular, do not play any significant role on the population dynamics of S. oleae.


Author(s):  
J. R. Britton ◽  
J. P. Harvey ◽  
I. G. Cowx ◽  
T. Holden ◽  
M. J. Feltham ◽  
...  

2019 ◽  
Vol 24 (5) ◽  
pp. 1176-1183 ◽  
Author(s):  
Serge Mignani ◽  
João Rodrigues ◽  
René Roy ◽  
Xiangyang Shi ◽  
Valentin Ceña ◽  
...  

2005 ◽  
Vol 72 (3) ◽  
pp. 229-234
Author(s):  
Zoltán Tóth ◽  
Gyózo Horváth ◽  
Ernó Müller

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