Effects of different insecticides on egg, larva and adult of tomato leaf miner, Tuta absoluta (Lepidoptera: Gelechiidae)
Tomato leaf miner, Tuta absoluta (Meyrick), is a serious pest of the greenhouse in Iran. Chemical control is the main method in high infestation conditions to deal with this pest. In this study, the efficacy of five insecticides from different groups consisting of abamectin, spinosad, imidacloprid,...
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| Format: | Article |
| Language: | English |
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University of Tarbiat Modares
2020-05-01
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| Series: | Journal of Crop Protection |
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| Online Access: | http://jcp.modares.ac.ir/article-3-36918-en.html |
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| author | Ahmad Moeini-Naghade Aziz Sheikhigarjan Naser Moeini-Naghadeh Abbas Ali Zamani |
| author_facet | Ahmad Moeini-Naghade Aziz Sheikhigarjan Naser Moeini-Naghadeh Abbas Ali Zamani |
| author_sort | Ahmad Moeini-Naghade |
| collection | DOAJ |
| description | Tomato leaf miner, Tuta absoluta (Meyrick), is a serious pest of the greenhouse in Iran. Chemical control is the main method in high infestation conditions to deal with this pest. In this study, the efficacy of five insecticides from different groups consisting of abamectin, spinosad, imidacloprid, indoxacarb and cypermethrin was examined on the egg, larvae and adult stages of T. absoluta in laboratory conditions. The LC50 values of the insecticides were estimated at the larval stage. The results showed that abamectin had the most and imidacloprid had the least ovicidal effect. None of the tested insecticides had a satisfactory effect on the adult stage. The maximum adulticide impact was 40% for spinosad. Abamectin with 0.45 mg ai.l-1 of LC50 value had the most toxicity and imidacloprid with 980 mg ai.l-1 of LC50 value had the least toxicity on the third instar larvae. According to the findings, abamectin and spinosad had the highest toxicity against three developmental stages (egg, larvae and adults) of the pest and can be used in infested tomato fields, when all life stages of T. absoluta are present at the same time. Meanwhile, it is recommended to use selective insecticides such as indoxacarb, when natural enemies are very active or the population of the tomato leaf miner is mostly at the larval stage. |
| first_indexed | 2024-12-12T05:50:52Z |
| format | Article |
| id | doaj.art-a9b523bd26b14b13a82741190adb9777 |
| institution | Directory Open Access Journal |
| issn | 2251-9041 2251-905X |
| language | English |
| last_indexed | 2024-12-12T05:50:52Z |
| publishDate | 2020-05-01 |
| publisher | University of Tarbiat Modares |
| record_format | Article |
| series | Journal of Crop Protection |
| spelling | doaj.art-a9b523bd26b14b13a82741190adb97772022-12-22T00:35:41ZengUniversity of Tarbiat ModaresJournal of Crop Protection2251-90412251-905X2020-05-0193439446Effects of different insecticides on egg, larva and adult of tomato leaf miner, Tuta absoluta (Lepidoptera: Gelechiidae)Ahmad Moeini-Naghade0Aziz Sheikhigarjan1Naser Moeini-Naghadeh2Abbas Ali Zamani3 Department of Plant Protection, College of Agriculture, Razi University, Kermanshah, Iran. Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran. Department of Plant Protection, College of Agriculture, Razi University, Kermanshah, Iran. Department of Plant Protection, College of Agriculture, Razi University, Kermanshah, Iran. Tomato leaf miner, Tuta absoluta (Meyrick), is a serious pest of the greenhouse in Iran. Chemical control is the main method in high infestation conditions to deal with this pest. In this study, the efficacy of five insecticides from different groups consisting of abamectin, spinosad, imidacloprid, indoxacarb and cypermethrin was examined on the egg, larvae and adult stages of T. absoluta in laboratory conditions. The LC50 values of the insecticides were estimated at the larval stage. The results showed that abamectin had the most and imidacloprid had the least ovicidal effect. None of the tested insecticides had a satisfactory effect on the adult stage. The maximum adulticide impact was 40% for spinosad. Abamectin with 0.45 mg ai.l-1 of LC50 value had the most toxicity and imidacloprid with 980 mg ai.l-1 of LC50 value had the least toxicity on the third instar larvae. According to the findings, abamectin and spinosad had the highest toxicity against three developmental stages (egg, larvae and adults) of the pest and can be used in infested tomato fields, when all life stages of T. absoluta are present at the same time. Meanwhile, it is recommended to use selective insecticides such as indoxacarb, when natural enemies are very active or the population of the tomato leaf miner is mostly at the larval stage.http://jcp.modares.ac.ir/article-3-36918-en.htmlabamectincypermethrinimidaclopridindoxacarb and spinosad |
| spellingShingle | Ahmad Moeini-Naghade Aziz Sheikhigarjan Naser Moeini-Naghadeh Abbas Ali Zamani Effects of different insecticides on egg, larva and adult of tomato leaf miner, Tuta absoluta (Lepidoptera: Gelechiidae) Journal of Crop Protection abamectin cypermethrin imidacloprid indoxacarb and spinosad |
| title | Effects of different insecticides on egg, larva and adult of tomato leaf miner, Tuta absoluta (Lepidoptera: Gelechiidae) |
| title_full | Effects of different insecticides on egg, larva and adult of tomato leaf miner, Tuta absoluta (Lepidoptera: Gelechiidae) |
| title_fullStr | Effects of different insecticides on egg, larva and adult of tomato leaf miner, Tuta absoluta (Lepidoptera: Gelechiidae) |
| title_full_unstemmed | Effects of different insecticides on egg, larva and adult of tomato leaf miner, Tuta absoluta (Lepidoptera: Gelechiidae) |
| title_short | Effects of different insecticides on egg, larva and adult of tomato leaf miner, Tuta absoluta (Lepidoptera: Gelechiidae) |
| title_sort | effects of different insecticides on egg larva and adult of tomato leaf miner tuta absoluta lepidoptera gelechiidae |
| topic | abamectin cypermethrin imidacloprid indoxacarb and spinosad |
| url | http://jcp.modares.ac.ir/article-3-36918-en.html |
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