Version 1
: Received: 15 August 2018 / Approved: 15 August 2018 / Online: 15 August 2018 (04:24:01 CEST)
How to cite:
Ibrahim, S.S.; Bala, I.; Mukhtar, M.M.; Habeeb, S.K. Evidence of Multiple Pesticides Resistance in the Tomato Leaf Miner Tuta Absoluta Meyrick (1917) from Savannah Region of Northern Nigeria. Preprints2018, 2018080262. https://doi.org/10.20944/preprints201808.0262.v1
Ibrahim, S.S.; Bala, I.; Mukhtar, M.M.; Habeeb, S.K. Evidence of Multiple Pesticides Resistance in the Tomato Leaf Miner Tuta Absoluta Meyrick (1917) from Savannah Region of Northern Nigeria. Preprints 2018, 2018080262. https://doi.org/10.20944/preprints201808.0262.v1
Ibrahim, S.S.; Bala, I.; Mukhtar, M.M.; Habeeb, S.K. Evidence of Multiple Pesticides Resistance in the Tomato Leaf Miner Tuta Absoluta Meyrick (1917) from Savannah Region of Northern Nigeria. Preprints2018, 2018080262. https://doi.org/10.20944/preprints201808.0262.v1
APA Style
Ibrahim, S.S., Bala, I., Mukhtar, M.M., & Habeeb, S.K. (2018). Evidence of Multiple Pesticides Resistance in the Tomato Leaf Miner <em>Tuta Absoluta </em>Meyrick (1917) from Savannah Region of Northern Nigeria. Preprints. https://doi.org/10.20944/preprints201808.0262.v1
Chicago/Turabian Style
Ibrahim, S.S., Muhammad M. Mukhtar and Saka K. Habeeb. 2018 "Evidence of Multiple Pesticides Resistance in the Tomato Leaf Miner <em>Tuta Absoluta </em>Meyrick (1917) from Savannah Region of Northern Nigeria" Preprints. https://doi.org/10.20944/preprints201808.0262.v1
Abstract
In 2016 northern Nigeria experienced a devastating infestation by the tomato leaf miner, leading to soaring in prices of tomato across the country. Unfortunately, information on the bionomics and resistance status of this pest is lacking in northern Nigeria, hampering appropriate control measures. Here, we identified to species level, and using conventional and synergist bioassays characterised pesticides resistance profile of a field population of a tomato leaf miner from northern Nigeria. Highest resistance was obtained with λ-cyhalothrin (Type II pyrethroid) with a low mortality (18.52% at 56hr) and LD50 of 7461.474ppm. Resistance was also established toward propoxur and chlorpyrifos-methyl with average mortalities each of 56% and LD50s of 1023.51ppm and 106.351ppm, respectively. Highest susceptibility was seen with abamectin with mortality of 86% and LD50 of 0.034ppm. Pre-exposure to piperonyl butoxide significantly recovered λ–cyhalothrin susceptibility (mortality = 90% and LD50 = 0.92ppm) implicating the P450 monoxygenases in the resistance. No significant changes in mortalities were obtained on pre-exposure to diethyl maleate and triphenyl-phosphate- inhibitors of glutathione S-transferases and carboxylesterases, respectively. The finding of resistance to these agricultural pesticides will sensitize stakeholders across Nigeria to take action to manage the resistance at an early stage before it gets out of hand.
Keywords
tomato pest; Tuta absoluta; bioassay; pesticide resistance; LD50; CYP450s
Subject
Biology and Life Sciences, Insect Science
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
