Paper Information

Journal:   BIO CONTROL IN PLANT PROTECTION   2016 , Volume 4 , Number 2 #H0058; Page(s) 71 To 83.
 
Paper: 

TWO-SEX LIFE TABLE PARAMETERS AND EFFICIENCY OF SIX SPOTTED LADYBIRD MENOCHILUS SEXMACULATUS FEED ON APHIS PUNICAE

 
 
Author(s):  FATEMIZADEH SAEIDEH SADAT*, SAMIH MOHAMMAD AMIN
 
* DEPARTMENT OF PLANT PROTECTION, VALI-E-ASR UNIVERSITY OF RAFSANJAN, RAFSANJAN, IRAN
 
Abstract: 

Study on the life table and predation rate of Menochilus sexmaculatus (Fabricius) (Col.: Coccinellidae) was performed under laboratory conditions at 25±2°C and 27.5±2°C, respectively and 65±5% RH and 16: 8h L: D. To study the life table, 60 one- day-old larvae were chosen and were feed on third and fourth instars of pomegranate green aphid Aphis punicae. Daily fertility, immature development time and mortality were analyzed through age-stage, two-sex life table analysis-MSChart software. The mean and standard error of parameters of population growth were analyzed according to the bootstrap method. Based on the results, the intrinsic rate of increase (rm), finite rate of increase (l), mean generation time (T0), gross and net reproductive rate (R0) were 0.21±0.01 d-1, 1.23±0.01 d-1, 24.57±0.46 d, 236.36±33.57 and 178.15±27.83 eggs/individual, respectively. The amounts of consumed aphids by fourth larval instars of ladybird were 188.08 for males and 179.09 for females. Average predation rate (C0) at pre-mature stage was 358.9 aphids and showed that predation of the M. sexmaculatus has a high potential in natural population control of this aphid.

 
Keyword(s): BIOLOGY, DEMOGRAPHY, EFFICIENCY, ZIGZAG LADYBIRD
 
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