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Paper Information

Journal:   JOURNAL OF ORNAMENTAL PLANTS (JOURNAL OF ORNAMENTAL AND HORTICULTURAL PLANTS)   JUNE 2014 , Volume 4 , Number 2; Page(s) 81 To 92.
 
Paper: 

EFFECT OF VARIOUS VERMICOMPOST-TEA CONCENTRATIONS ON LIFE TABLE PARAMETERS OF MACROSIPHUM ROSAE L. (HEMIPTERA: APHIDIDAE) ON ROSE (ROSA HYBRIDA L.) FLOWER

 
 
Author(s):  MODARRES NAJAFABADI SEYED SAEID*
 
* DEPARTMENT OF ENTOMOLOGY, AGRICULTURE AND NATURAL RESOURCES RESEARCH CENTER, ARAK, IRAN
 
Abstract: 

The life table parameters of Macrosiphum rosae L. (Hemiptera: Aphididae) on five vermicompost-tea (tea-compost) concentrations (20, 40, 60, 80 and 100%) and control treatment (0%) on Rosa hybrida L. were determined under laboratory conditions. There were significant differences among pre-imaginal period and adult longevity of the aphid on the five teacompost concentrations. The highest mortality occurred at first nymphal instar on all treatments. The life expectancy (ex) of one-day-old adults was estimated to be 30, 35, 37, 40, 42 and 20 days on various tea-compost concentrations and control treatment, respectively. The net reproductive rate (R0) significantly differed on different treatments, which was the highest on control (29.12±2.21 female offspring) and lowest on 100% of tea-compost concentration (15.47±2.12 female offspring). The highest and lowest values of the intrinsic rate of increase (rm) were 0.736±0.171 day-1 (on control) and 0.105±0.005 day-1 (on 100% treatment), respectively. The finite rate of increase (?) varied from 1.101±0.143 day-1 (on 100% treatment) to 1.853±0.001 day-1 (on control). Doubling time ranged from 1.806±0.023 (on control) to 4.587±0.161 days (on 100% treatment). The longest mean generation time (T) of the rose aphid was obtained on 100% treatment. The results showed that the 100% of tea-compost concentration had the highest antibiotic effect on population growth of Macrosiphum rosae.

 
Keyword(s): LIFE TABLE, MACROSIPHUM ROSAE, POPULATION GROWTH PARAMETERS, TEA-COMPOST
 
References: 
 
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