Population Dynamics of the Mango Mealybug Rastrococcus invadens Williams (Homoptera: Pseudococcidea) in Western Burkina Faso
Journal Title: Journal of Experimental Agriculture International - Year 2016, Vol 11, Issue 6
Abstract
Aims: The study aimed at determining the periods of high pest population of the mango tree mealybug Rastrococcus invadens Williams with respect to biotic and abiotic factors. Study Design: Semiweekly observations were performed on the mango trees with a view of assessing the density of alive, dead or parasitized R. invadens. Place and Duration of the Study: This study was conducted in Western Burkina Faso from May 2014 to April 2015. Methodology: A set of mango trees was selected in each of the following locations: Toussiana, Bérégadougou and Orodara. The assessment was conducted on 20 leaves (five leaves per cardinal point) that were picked up from each mango tree at each observation date. The parasitized mealybugs were kept inside pill boxes for two weeks and the emerging parasitoids were collected and kept in alcohol 70°. Data were registered and processed with the Microsoft Excel 2010 and SPSS software. Results: Results showed that R. invadens’ populations were more abundant during the wet season (May-September 2014) than the dry season (November 2014-April 2015) in all study locations. In general, parasitism was low. Some peaks of abundance were recorded in both wet and dry seasons. The evolution of the mortality of the insect pest was the same in all locations and peaks were observed from December 2014 to April 2015. The density of living R. invadens was significantly correlated with temperature and relative humidity. Impact of the parasitism due to Anagyrus mangicola Noyes and Gyranusoidea tebygi Noyes were also assessed and discussed. Conclusion: Periods of R. invadens populations’ abundance are well known in Western Burkina Faso. The parasitoids A. mangicola and G. tebygi are well established. The level of parasitism could be improved by releasing of A. mangicola and G. tebygi to control R. invadens efficiently.
Authors and Affiliations
Karim Nébié, Souleymane Nacro, Lenli Claude Otoidobiga, Dona Dakouo, Irénée Somda
Keywords
Related Articles
- EP ID EP351336
- DOI 10.9734/AJEA/2016/24819
- Views 67
- Downloads 0
Factors Affecting the Involvement of Women in Income Generating Activities in Sabon-Gari Local Government Area of Kaduna State, Nigeria
This study examines factors affecting the involvement of women in income generating activities. Data for this study were obtained by the use of structured questionnaire. A total of 120 respondents were interviewed consis...
A Baseline Survey on Cattle Imports through Different Peripheral Areas of Bangladesh
This research program was undertaken to find out the existing cattle marketing scenario, problem and prospects in 11 (eleven) different busiest land ports areas (Hilli, Benapole, Banglabandha, Bhurimari, Sonamasjid, Bib...
Energy Budgeting and Economics of Rice Based Cropping System under Resource Conservation Technologies in Foothill of Himalayan Region
A field experiment was conducted at Norman E Borlaug Crop Research Center, Pantnagar, India during 2011-12 and 2012-13. The experiment was laid in a factorial split plot design with resource conservation technology pract...
A Study on Comparative Economics of Grain and Seed Production of Groundnut in Karnataka, India
The present study was based on primary data collected for 100 farmers from Chitradurga district of Karnataka during the agricultural year 2013-14. Tabular analysis and discriminant function analysis was used in the prese...
Genetic Variation, Heritability and Relationship between Inbred Lines Performances under Drought Stress and Irrigation Conditions in Rice
Aims: Genetic variability and heritability for agronomic traits are key component in broadening the gene pool and as selection criteria in any rice breeding programs. In present study I estimated genetic variation and he...