Treatments of common bean seeds (Phaseolus vulgaris L.) with insecticides for managing bean stem maggot [Ophiomyia spp. (Tryon) (Diptera: Agromyzidae)] in SNNPR, Ethiopia

Getachew Gudero Mengesha 1 , Keyredin Sultan Salo 2 , Dizgo Chencha Cheleko 3 , Tamirat Samuel Shago 4 , Merihum Gimja Betire 5 , Arato Abera Asnake 6 , Zemenu Fentahun Biress 7 , Biniam Boraysho Borano 8 , Dembele Ersulo Aloto 9 , Ashenafi Dana Anijulo 10

1   Arba Minch Agricultural Research Center (AmARC), SARI, P.O.Box. 2228, Arba Minch, Ethiopia; Plant Pathology Researcher, AmARC, SARI, P.O.Box. 2228, Arba Minch, Ethiopia
2   Arba Minch Agricultural Research Center (AmARC), SARI, P.O.Box. 2228, Arba Minch, Ethiopia; Agricultural Entomology Researcher, AmARC, SARI, P.O.Box. 2228, Arba Minch, Ethiopia
3   Arba Minch Agricultural Research Center (AmARC), SARI, P.O.Box. 2228, Arba Minch, Ethiopia; Agronomy Researcher, AmARC, SARI, P.O.Box. 2228, Arba Minch, Ethiopia
4   Arba Minch Agricultural Research Center (AmARC), SARI, P.O.Box. 2228, Arba Minch, Ethiopia; Agricultural Entomology Researcher, AmARC, SARI, P.O.Box. 2228, Arba Minch, Ethiopia
5   Southern Agricultural Research Institute, Arba Minch Agricultural Research Center, P.O.Box. 2228, Arba Minch, Ethiopia
6   Arba Minch Agricultural Research Center (AmARC), SARI, P.O.Box. 2228, Arba Minch, Ethiopia; Plant Pathology Researcher, AmARC, SARI, P.O.Box. 2228, Arba Minch, Ethiopia
7   Arba Minch Agricultural Research Center (AmARC), SARI, P.O.Box. 2228, Arba Minch, Ethiopia; Agricultural Entomology Researcher, AmARC, SARI, P.O.Box. 2228, Arba Minch, Ethiopia
8   Arba Minch Agricultural Research Center (AmARC), SARI, P.O.Box. 2228, Arba Minch, Ethiopia; Weed Science Researcher, AmARC, SARI, P.O.Box. 2228, Arba Minch, Ethiopia
9   Arba Minch Agricultural Research Center (AmARC), SARI, P.O.Box. 2228, Arba Minch, Ethiopia; Pulse, Oil and Fiber Crops Researcher, AmARC, SARI, P.O.Box. 2228, Arba Minch, Ethiopia
10   Arba Minch Agricultural Research Center (AmARC), SARI, P.O.Box. 2228, Arba Minch, Ethiopia; Pulse, Oil and Fiber Crops Researcher, AmARC, SARI, P.O.Box. 2228, Arba Minch, Ethiopia

✉ Coressponding author: See PDF.

doi https://doi.org/10.26832/24566632.2022.0702011

doi

Abstract

Bean stem maggot (BSM) is one of the main threatening insect pests that cause significant bean plant mortalities and associated grain yield reductions. The field research work was conducted for three successive years (2018 - 2020) in Burji, southern Ethiopia, to decide the effects of insecticide seed treatment in reducing bean plant mortality and severity/damage caused by BSM and enhancing the grain yield of common bean. The research contained seven treatments and was arrayed in a randomized complete block design with three replicas. In 2018, the lowest seedling mortality (SM) (11.78%) and matured plant mortality (MPM) (21.89%) were registered from Diazinone-treated plots. However, it was not statistically varied from Thiram + Carbofuran (13.33% for SM and 22.22% for MPM). Bean seeds treated with Diazinon considerably reduced initial percent severity index (PSIi) by 79.79% and final percent severity index (PSIf) by 79.98%, followed by Thiram + Carbofuran with PSIi by 55.67% and PSIf by 76.98% over untreated plots. Lowest total number of larvae (TNL) (15.00 and 22.67) and pupae (TNP) (11.00 and 13.67) were noted from Diazinone and Thiram + Carbofuran, in that order. Comparable fashions for SM, MPM, PSIi, PSIf, TNL, and TNP were encountered for these insecticides in 2019 and 2020. Grain yields of 2229.37 and 2213.39 kg ha-1 (in 2018) and 2648.29 and 2503.20 kg ha-1 (in 2020) were attained from Diazinone and Thiram + Carbofuran, respectively. Monetary analysis also affirmed that Diazinone ($126,429.52 ha-1) and Thiram + Carbofuran ($122,241.67 ha-1) led to a higher monitory advantage over untreated control and other insecticides. Therefore, Diazinon and Thiram + Carbofuran, one of them as an alternative option, could be advised as a seed treatment to the growers for efficient control of BSM and optimization of grain yield.

Keywords:

Bean stem maggot, Grain yield, Insecticide seed treatments, Mortality, Number of larvae, Number of pupae, Severity

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Published

2022-06-25

How to Cite

Mengesha, G., Salo, K., Cheleko, D. ., Shago, T. ., Betire, M. G., Asnake, A. A., Biress, Z. F., Borano, B. B., Aloto, D. E., & Anijulo, A. D. (2022). Treatments of common bean seeds (Phaseolus vulgaris L.) with insecticides for managing bean stem maggot [Ophiomyia spp. (Tryon) (Diptera: Agromyzidae)] in SNNPR, Ethiopia . Archives of Agriculture and Environmental Science, 7(2), 226-240. https://doi.org/10.26832/24566632.2022.0702011

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