University of Khartoum

Life Table Data Analysis ofLocustamigratoriamigratorioides(R,F) and Effect of Pheromones Phenylacetonitrile (PAN) on Feeding, mortality and Survival of the Nymphs

Life Table Data Analysis ofLocustamigratoriamigratorioides(R,F) and Effect of Pheromones Phenylacetonitrile (PAN) on Feeding, mortality and Survival of the Nymphs

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Title: Life Table Data Analysis ofLocustamigratoriamigratorioides(R,F) and Effect of Pheromones Phenylacetonitrile (PAN) on Feeding, mortality and Survival of the Nymphs
Author: Abdelslam, Sami Badereldeen Mohammed
Abstract: The laboratory experiments were conducted at the Unit of Biological Control, of the Department of Crop Protection, Faculty of Agriculture University of Khartoum, Shambat, during the period September 2014, to Marsh 2015. The experiments were carried out under laboratory conditions, normal day light and under semi-field conditions (cage- experiment). The study was conducted to determine life history parameters of Locustamigratoriamigratorioides collected from North Elgedaref coordinate N 14 31 144 E 035 12 450.Based on laboratory studies, duration of egg, nymphal, and adult were 14 days, 29 days, 67 days respectively.The sex ratio of emerging adults was 1:1.Fecundity mean was 55 egg/ female and the mean number of pods was 3 / female.Maximum values of the fecundity rates were reached after 16 weeks.The values of the net reproductive rate (RO), weighed generation time (T), Doubling time (DT), innate capacity of numerical increase (rm), and the finite rate of increases(ʎ) were 738.71, 98.8, 10.36,0.067 and 1.166respectively.The second part of the studywasconducted to determine the effect of Phenylacetonitrile (PAN)pheromone of the desert locust Schistocercagregaria (Forskal) gregarious adult on mortality and feeding rate on the third instar of Locustamigratoriamigratorioides (R,F).The tested concentrations were 5ml, 10ml, 15ml and 20ml,diluted in diesel to thedose application rate was 2 literper hectare and Malathion 96% was used asareference. The mortality effect of these concentration appeared after four days except the concentration 15 ml where the effect appeared after 24 hour. The effect of PAN concentrations 5 , 10 , 15 and 20ml,Control, Diesel , and Malathion 96% was 0%,5% , 16.66% , 23.33% , 26.66% , 8.33% , 100% respectively. The feeding rate (g/day) of nymphs treated with Phenylacetonitrile (PAN) concentrations of 5ml , 10ml,15mland 20ml,untreated control , diesel treated and Malathion 96% were 5.69 ± 0.35, 4.9 ± 0.48, 2.87 ± 0.11, 1.3 ± 0.19 , 1.31 ± 0.04, 1.41 ± 0.15 ,0.32 ±0.021gram, respectively.The research recommendsthe use of the pheromone Phenylacetonitrile (PAN) as alternative of chemical pesticides against the African migratory locust Locustamigratoriamigratorioides control management campaigns. It is also recommended that tests be conducted on its use against other locust species.
Description: 64page
URI: http://khartoumspace.uofk.edu/123456789/23857


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