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Paper Information

Journal:   AGRICULTURAL PEST MANAGEMENT   SPRING 2014 , Volume 1 , Number 1; Page(s) 23 To 35.
 
Paper: 

INSECTICIDAL AND DETERRENCE EFFECTS OF ETHANOL EXTRACT FROM CALOTROPIS PROCERA (ASCLEPIADACEAE) LEAVES AGAINST TRIBOLIUM CASTANEUM, T. CONFUSUM (COL.: TENEBRIONIDAE) AND THIACIDAS POSTICA (LEP.: NOCTUIDAE)

 
 
Author(s):  FARRAR NASER*, FARSI MOHAMMAD JAFAR, ASGARI HASSAN, ZAMANI ABBAS ALI, GOLESTANEH SEYED REZA
 
* RAZI UNIVERSITY, RESEARCH CENTER OF AGRICULTURAL AND NATURAL RESOURCES OF BUSHEHR
 
Abstract: 

The insecticidal and antifeedant properties of ethanol extract of Calotropis procera were investigated on the flour beetles, Tribolium spp., and Thiacidas postica by the food disc and sandwich procedure. The experiments were carried out according to a completely randomized design with four treatments and five replications. The obtained results showed that all pupae of the flour beetles died at the concentrations of 90 and 120 ml/disc. At the other concentrations, the weight and growth of the adults were significantly different with the control. The mortality of neonate larvae of T. postica at the all concentrations was significantly greater than control. The feeding rates of the third and fifth instar larvae of T. postica at the concentrations of 30 and 60 ml/cm were significantly different with the other treatments. The results revealed that the amount of leaf consumption at the 30 and 60 ml/cm was higher than the other concentrations; consequently, the insecticidal and antifeedant properties were occurred at the low and high concentrations, respectively. The ethanol extract of C. procera had a noticeable effect on the relative growth rate (RGR) and relative consumption rate (RCR) at all concentrations except for 30 ml/disc concentration. In addition, the greatest influence on the efficiency of conversion of ingested food (ECI) and feeding deterrence index (FDI) was observed at the concentrations of 60 and 120?l/disc, respectively.

 
Keyword(s): CALOTROPIS PROCERA, TRIBOLIUM SPP., THIACIDAS POSTICA, NUTRITIONAL INDEX, INSECTICIDAL EFFECT
 
References: 
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