The production and productivity of coffee is affected by many insect pests and Ethiopian farmers get below 0.636 tons per hectare. Among insect pests Antestia bug is the major coffee insect pest affecting coffee productions. Therefore, the study was carried out to determine the frequency of promised Entomopathogenic fungi isolates against antestia bug. The experiment was done in Jimma Agricultural Research Center, Entomology and Pathology laboratories. Used entomopathogenic fungi isolates were brought from Ambo Agricultural Research Center. Two isolates of Beauvaria bassiana, PPRC-44BC and PPRC-27J isolates applied at 1x108 conidia ml-1 and three times were used for the experiment. Completely randomized design with three replications and probit analysis were used for data analysis by using SAS software version 9.3. PPRC-44BC and PPRC-27J isolates killed all the tested Antestia bugs in exposure time. The isolates applied three times reduced median lethal time by 42.13 and 38.89%, respectively as compared to with their respective one time application. The correlation result also showed that there was strong negative correlation between application frequency of isolates and median lethal times (LT50 and LT90 were r=-0.811 and r=-0.714, respectively). The study indicated that the more frequently applied isolates the shorter the median lethal time. This showed promising result in the microbials based insect pest management methods and need further investigations under field conditions and the effect of these isolates against natural enemies of the pest.
| Published in | American Journal of Life Sciences (Volume 9, Issue 3) |
| DOI | 10.11648/j.ajls.20210903.13 |
| Page(s) | 55-59 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2021. Published by Science Publishing Group |
Thrice, Laboratory, PPRC-44BC, PPRC-27J, LT50
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APA Style
Belay Abate, Nagasa Dechassa. (2021). Application Frequency of Beauvaria bassiana Isolates Against Antestia Bugs (Antetiopsis intircata: Pentatomidea, Hemimptera) Management. American Journal of Life Sciences, 9(3), 55-59. https://doi.org/10.11648/j.ajls.20210903.13
ACS Style
Belay Abate; Nagasa Dechassa. Application Frequency of Beauvaria bassiana Isolates Against Antestia Bugs (Antetiopsis intircata: Pentatomidea, Hemimptera) Management. Am. J. Life Sci. 2021, 9(3), 55-59. doi: 10.11648/j.ajls.20210903.13
AMA Style
Belay Abate, Nagasa Dechassa. Application Frequency of Beauvaria bassiana Isolates Against Antestia Bugs (Antetiopsis intircata: Pentatomidea, Hemimptera) Management. Am J Life Sci. 2021;9(3):55-59. doi: 10.11648/j.ajls.20210903.13
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Download@article{10.11648/j.ajls.20210903.13,
author = {Belay Abate and Nagasa Dechassa},
title = {Application Frequency of Beauvaria bassiana Isolates Against Antestia Bugs (Antetiopsis intircata: Pentatomidea, Hemimptera) Management},
journal = {American Journal of Life Sciences},
volume = {9},
number = {3},
pages = {55-59},
doi = {10.11648/j.ajls.20210903.13},
url = {https://doi.org/10.11648/j.ajls.20210903.13},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajls.20210903.13},
abstract = {The production and productivity of coffee is affected by many insect pests and Ethiopian farmers get below 0.636 tons per hectare. Among insect pests Antestia bug is the major coffee insect pest affecting coffee productions. Therefore, the study was carried out to determine the frequency of promised Entomopathogenic fungi isolates against antestia bug. The experiment was done in Jimma Agricultural Research Center, Entomology and Pathology laboratories. Used entomopathogenic fungi isolates were brought from Ambo Agricultural Research Center. Two isolates of Beauvaria bassiana, PPRC-44BC and PPRC-27J isolates applied at 1x108 conidia ml-1 and three times were used for the experiment. Completely randomized design with three replications and probit analysis were used for data analysis by using SAS software version 9.3. PPRC-44BC and PPRC-27J isolates killed all the tested Antestia bugs in exposure time. The isolates applied three times reduced median lethal time by 42.13 and 38.89%, respectively as compared to with their respective one time application. The correlation result also showed that there was strong negative correlation between application frequency of isolates and median lethal times (LT50 and LT90 were r=-0.811 and r=-0.714, respectively). The study indicated that the more frequently applied isolates the shorter the median lethal time. This showed promising result in the microbials based insect pest management methods and need further investigations under field conditions and the effect of these isolates against natural enemies of the pest.},
year = {2021}
}
TY - JOUR T1 - Application Frequency of Beauvaria bassiana Isolates Against Antestia Bugs (Antetiopsis intircata: Pentatomidea, Hemimptera) Management AU - Belay Abate AU - Nagasa Dechassa Y1 - 2021/06/30 PY - 2021 N1 - https://doi.org/10.11648/j.ajls.20210903.13 DO - 10.11648/j.ajls.20210903.13 T2 - American Journal of Life Sciences JF - American Journal of Life Sciences JO - American Journal of Life Sciences SP - 55 EP - 59 PB - Science Publishing Group SN - 2328-5737 UR - https://doi.org/10.11648/j.ajls.20210903.13 AB - The production and productivity of coffee is affected by many insect pests and Ethiopian farmers get below 0.636 tons per hectare. Among insect pests Antestia bug is the major coffee insect pest affecting coffee productions. Therefore, the study was carried out to determine the frequency of promised Entomopathogenic fungi isolates against antestia bug. The experiment was done in Jimma Agricultural Research Center, Entomology and Pathology laboratories. Used entomopathogenic fungi isolates were brought from Ambo Agricultural Research Center. Two isolates of Beauvaria bassiana, PPRC-44BC and PPRC-27J isolates applied at 1x108 conidia ml-1 and three times were used for the experiment. Completely randomized design with three replications and probit analysis were used for data analysis by using SAS software version 9.3. PPRC-44BC and PPRC-27J isolates killed all the tested Antestia bugs in exposure time. The isolates applied three times reduced median lethal time by 42.13 and 38.89%, respectively as compared to with their respective one time application. The correlation result also showed that there was strong negative correlation between application frequency of isolates and median lethal times (LT50 and LT90 were r=-0.811 and r=-0.714, respectively). The study indicated that the more frequently applied isolates the shorter the median lethal time. This showed promising result in the microbials based insect pest management methods and need further investigations under field conditions and the effect of these isolates against natural enemies of the pest. VL - 9 IS - 3 ER -
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