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Insect inventories in a mango‐based agroforestry area in Bangladesh: foraging behavior and performance of pollinators on fruit set
Authors:Md Ruhul Amin  Shakura Namni  Md Ramiz Uddin Miah  Md Giashuddin Miah  Mohammad Zakaria  Sang Jae Suh  Yong Jung Kwon
Affiliation:1. Department of Entomology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh;2. Institute of Plant Medicine, Kyungpook National University, Daegu, Korea;3. Department of Agroforestry and Environment, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh;4. Department of Horticulture, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur, Bangladesh;5. School of Applied Biosciences, Kyungpook National University, Daegu, Korea
Abstract:Insect species inventories along with pest prevalence, foraging behavior of pollinators and their effect on fruit set of mango were studied in a mango‐based agroforestry area in Bangladesh during January to June 2013. Of 1751 collected insects, 11 species in five orders and nine families were pests, 13 species in six orders and eight families were predators and eight species belonging to three orders and seven families were found as pollinators. The pests exerted significantly higher abundance but lower diversity than pollinator, predator and other insects. The pollinator richness was found to be lowest but showed higher as well as similar diversity to other category insects. Three pest species prevailed throughout the season and hoppers showed significant abundance. Among the predators, ants were most abundant. Sulphur butterfly and syrphid fly revealed statistically identical and higher abundance than other pollinators. During the flowering season, pests were dominant and the abundance of insects was observed to peak at 11.00 h. The pollinators differed in their landing duration on flowers and their activity led to higher levels of fruit set. This study provides baseline information on insect abundance in an agroforestry system, which stresses the importance of conservation of beneficial insects.
Keywords:agroforestry  Mangifera indica  pest  pollinator  predator
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