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VOL. 8, ISSUE 3 (2023)
Effect of organic insect pest management strategies on brinjal production
Authors
Md. Rakibuzzaman, M M Rahman, M S Hossain, Md. Emam Hossain
Abstract
A study was conducted in organic and intensive vegetable growing areas located in Manikganj and Narsingdi districts of Dhaka division. A total of 30 organic brinjal growers were interviewed from 5 randomly selected villages of Manikganj and Narsingdi. Data were collected from September 2020 to September 2021. Most frequently used pest management strategies by the organic farmers under the study areas were; T0=Untreated control (Used resistant varieties only), T1=Pheromone trap (Plastic pot), T2=Sticky trap+ Neem leaf powder @ 1kg/10L of water at 7 days interval, T3=Bait trap+ Neem leaf powder @ 1kg/10L of water at 7 days interval, T4=Light trap+ Mahogany seed powder @ 20gm/L of water at 7 days interval and T5= Pheromone trap + Trichogramma evanescens (100 points ha-1 at 500 wasps per point. For the untreated control of brinjal shoot and fruit borer, T1=Pheromone trap (Plastic pot) was the most frequently used (50.67%) in the study area whereas T5= Pheromone trap + Trichogramma evanescens (19.71%) was used by the least number of organic farmers besides untreated control T0 (7.33%). Best performance was obtained from T5 in terms of percent fruit infestation reduction over control. The highest benefit cost ratio was 1.60 recorded from the treatment T5= Pheromone trap + Trichogramma evanescens, lowest benefit cost ratio was 1.42 for brinjal production from the untreated control treatment T0. The benefit cost ratio for organic vegetable production was relatively similar and close to inorganic vegetable production practices and high yielding vegetables due to low operational cost. Although organic brinjal production was accompanied with insect pest susceptibility and less yield per hectare, high market price and increased demand among the consumers eventually minimized the gap in BCR of organic brinjal production practices with inorganic brinjal production practices.
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Pages:78-83
How to cite this article:
Md. Rakibuzzaman, M M Rahman, M S Hossain, Md. Emam Hossain "Effect of organic insect pest management strategies on brinjal production". International Journal of Entomology Research, Vol 8, Issue 3, 2023, Pages 78-83
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