Ramalakshmi V, C. R. Satapathy, S. Borkataki, Soumik Ray, Dinkar Gaikwad
Twelve phyto products and two forms of cow dung were evaluated during 2021- 22 in the Entomology Research Laboratory, M S Swaminathan School of Agriculture, Centurion University of Technology and Management, Gajapati District of Odisha for their efficacy against Rhyzopertha dominica (F) in stored paddy. The experiment was laid out in a completely randomized design with each treatment replicated thrice. Individual treatments comprised 20 g disinfested paddy seeds treated with test products @ 5g/ kg seed separately and an untreated check and inoculated with 20 adults /treatment. All the treatments were effective in suppressing the R. dominica, with maximum adult mortality (92.1%) being in black pepper powder followed by custard apple seed powder (88.4%) at 28 days after release. The least population buildup (2 adults), grain damage (3.3%), and weight loss (2.7%) were observed with black pepper powder treated paddy at 120 days after storage.
{"title":"Efficacy of Natural Products Against Lesser Grain Borer Rhyzopertha dominica (F.) In Stored Paddy","authors":"Ramalakshmi V, C. R. Satapathy, S. Borkataki, Soumik Ray, Dinkar Gaikwad","doi":"10.55446/ije.2024.1666","DOIUrl":"https://doi.org/10.55446/ije.2024.1666","url":null,"abstract":"Twelve phyto products and two forms of cow dung were evaluated during 2021- 22 in the Entomology Research Laboratory, M S Swaminathan School of Agriculture, Centurion University of Technology and Management, Gajapati District of Odisha for their efficacy against Rhyzopertha dominica (F) in stored paddy. The experiment was laid out in a completely randomized design with each treatment replicated thrice. Individual treatments comprised 20 g disinfested paddy seeds treated with test products @ 5g/ kg seed separately and an untreated check and inoculated with 20 adults /treatment. All the treatments were effective in suppressing the R. dominica, with maximum adult mortality (92.1%) being in black pepper powder followed by custard apple seed powder (88.4%) at 28 days after release. The least population buildup (2 adults), grain damage (3.3%), and weight loss (2.7%) were observed with black pepper powder treated paddy at 120 days after storage.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"6 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140498973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ratnadeep Sarkar, Abhirup Saha, Subhajit Das, Prapti Das, Dhiraj Saha
The present study was carried out with the aim to characterize a mosquito species that was documented near about a century ago from Darjeeling district of northern West Bengal, India. Mosquito larvae were collected from the bamboo stumps or holes of sub-Himalayan plains of Darjeeling district, West Bengal, India. Collected immatures were reared upto adults maintaining standard protocol. Larva and adult specimens were investigated for morphological identifications upto generic and species level. In the present study, the Niveus species Downsiomyia albolateralis (Theobald, 1908) is a newer addition to the mosquito fauna in the region and it will update the mosquito checklist for the knowledge of vector and non-vector species.
{"title":"Record of Downsiomyia albolateralis (Theobald) (Diptera: Culicidae) from the Himalayan Plains of West Bengal","authors":"Ratnadeep Sarkar, Abhirup Saha, Subhajit Das, Prapti Das, Dhiraj Saha","doi":"10.55446/ije.2024.1556","DOIUrl":"https://doi.org/10.55446/ije.2024.1556","url":null,"abstract":"The present study was carried out with the aim to characterize a mosquito species that was documented near about a century ago from Darjeeling district of northern West Bengal, India. Mosquito larvae were collected from the bamboo stumps or holes of sub-Himalayan plains of Darjeeling district, West Bengal, India. Collected immatures were reared upto adults maintaining standard protocol. Larva and adult specimens were investigated for morphological identifications upto generic and species level. In the present study, the Niveus species Downsiomyia albolateralis (Theobald, 1908) is a newer addition to the mosquito fauna in the region and it will update the mosquito checklist for the knowledge of vector and non-vector species.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"31 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140498226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The fauna of spiders which is a significant part of agriculture ecosystem was observed in 8 crop fields during the kharif. The spiders were caught from June-October, using sweep nets. The total numbers of spider species were 37 representing 12 families. Araneidae was the most abundant family, followed by Thomisidae, Salticidae, Oxyopidae, Tetragnathidae, Clubionidae, Dictynidae, Gnaphosidae, Lycosidae, Sparassidae, Theridiidae and Ulboridae. The species diversity index (H`) was 4.98 and the Equitability index (EH) was 0.95. An ordination of correspondence analysis demonstrated a bunching of the spiders commencing to paddy fields was more as compared to other crops. Thus, paddy seemed to give better natural niche for the spiders than other field crops. Increasing use of pesticides is the main menace to the several species and their survival in agroecosystem.
{"title":"Abundance and Diversity of Spiders in Agroecosystems of Jabalpur","authors":"Jagrati Upadhyay, S. Das","doi":"10.55446/ije.2024.1734","DOIUrl":"https://doi.org/10.55446/ije.2024.1734","url":null,"abstract":"The fauna of spiders which is a significant part of agriculture ecosystem was observed in 8 crop fields during the kharif. The spiders were caught from June-October, using sweep nets. The total numbers of spider species were 37 representing 12 families. Araneidae was the most abundant family, followed by Thomisidae, Salticidae, Oxyopidae, Tetragnathidae, Clubionidae, Dictynidae, Gnaphosidae, Lycosidae, Sparassidae, Theridiidae and Ulboridae. The species diversity index (H`) was 4.98 and the Equitability index (EH) was 0.95. An ordination of correspondence analysis demonstrated a bunching of the spiders commencing to paddy fields was more as compared to other crops. Thus, paddy seemed to give better natural niche for the spiders than other field crops. Increasing use of pesticides is the main menace to the several species and their survival in agroecosystem.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"29 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140498054","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Arundhati Sasmal, Anjan Kumar Nayak, Prasanthi Golive, Soumya Shephalika Dash, Shyamaranjan Das Mohapaapatra, Tribikram Samal
The rice leaf folder, Cnaphalocrocis medinalis (Guenee) is a significant pest causing outbreaks. This study focuses on the impact of selected rice landraces on the survivability of C. medinalis, aiming to identify potential sources for IPM and future breeding programs. The research encompassed 35 landraces, categorized as resistant, moderately resistant and susceptible based on net house screenings along with standard resistant check (TKM6) and susceptible check (TN1). The study evaluated fecundity, larval emergence, survival rates, and adult emergence on these genotypes. Results showed that resistant and moderately resistant genotypes significantly reduced the pest’s fecundity and survival across various lifestages compared to susceptible ones. The findings indicated the possible existence of antibiosis factors in resistant genotypes.
水稻稻纵卷叶螟（Cnaphalocrocis medinalis，Guenee）是一种严重的害虫，会导致暴发。本研究的重点是选定的水稻品种对 C. medinalis 生存能力的影响，旨在为 IPM 和未来的育种计划确定潜在的来源。研究包括 35 个陆稻品种，根据网室筛选结果分为抗性、中度抗性和易感性，以及标准抗性对照（TKM6）和易感性对照（TN1）。研究评估了这些基因型的繁殖力、幼虫出现率、存活率和成虫出现率。结果表明，与易感基因型相比，抗性基因型和中度抗性基因型能显著降低害虫在各个生命阶段的繁殖力和存活率。研究结果表明，抗性基因型中可能存在抗病因素。
{"title":"Effect of Selected Rice Landraces on the Fecundity and Survival of Rice Leaf Folder Cnaphalocrocis Medinalis (Guenee)","authors":"Arundhati Sasmal, Anjan Kumar Nayak, Prasanthi Golive, Soumya Shephalika Dash, Shyamaranjan Das Mohapaapatra, Tribikram Samal","doi":"10.55446/ije.2024.1778","DOIUrl":"https://doi.org/10.55446/ije.2024.1778","url":null,"abstract":"The rice leaf folder, Cnaphalocrocis medinalis (Guenee) is a significant pest causing outbreaks. This study focuses on the impact of selected rice landraces on the survivability of C. medinalis, aiming to identify potential sources for IPM and future breeding programs. The research encompassed 35 landraces, categorized as resistant, moderately resistant and susceptible based on net house screenings along with standard resistant check (TKM6) and susceptible check (TN1). The study evaluated fecundity, larval emergence, survival rates, and adult emergence on these genotypes. Results showed that resistant and moderately resistant genotypes significantly reduced the pest’s fecundity and survival across various lifestages compared to susceptible ones. The findings indicated the possible existence of antibiosis factors in resistant genotypes.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"2 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140499297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rabah Chaouch, Habiba Gacem, Ali Bouaziz, Boudjema Saoudi
In this study, the toxicity of an insecticide, Actellic 50EC, was tested against L3 and L4 instars of mosquito larvae Culiseta longiareolata (Macquart). The newly exuviated larvae were subjected to various concentrations (25, 40, and 75 μg/ l) for 24 hr and out until the adult stage. Probit analysis for L3 stage showed that following obdsevations continued to adult stage LC50=18.70 μg/ l and LC90= 60.81 μg/ l. On the other hand, L4 stage shows these were LC50= 36.42 μg/ l and the LC90= 102.45 μg/ l, respectively, indicating that it is more toxic to L3. This study reveals that lipids and carbohydrates have decreased, while there is an increase in proteins, which has been associated in some cases with morphological deformations.
{"title":"Study of the Toxic Effect of Chemical Pesticide Actellic 50EC Against Culiseta Longiareolata Mosquito Larvae","authors":"Rabah Chaouch, Habiba Gacem, Ali Bouaziz, Boudjema Saoudi","doi":"10.55446/ije.2024.1607","DOIUrl":"https://doi.org/10.55446/ije.2024.1607","url":null,"abstract":"In this study, the toxicity of an insecticide, Actellic 50EC, was tested against L3 and L4 instars of mosquito larvae Culiseta longiareolata (Macquart). The newly exuviated larvae were subjected to various concentrations (25, 40, and 75 μg/ l) for 24 hr and out until the adult stage. Probit analysis for L3 stage showed that following obdsevations continued to adult stage LC50=18.70 μg/ l and LC90= 60.81 μg/ l. On the other hand, L4 stage shows these were LC50= 36.42 μg/ l and the LC90= 102.45 μg/ l, respectively, indicating that it is more toxic to L3. This study reveals that lipids and carbohydrates have decreased, while there is an increase in proteins, which has been associated in some cases with morphological deformations.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"9 1-2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140498420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Grigoryan, Vahram Hayrapetyan, Mark. Y. Kalashyan, K. Balayan
The root maggot flies are important pests of cultivated and non-cultivated plant species. This study on the invertebrate fauna of Nagorno-Karabakh was focused on the new leaf miners belonging to the Anthomyiidae. Pegomya bicolor (Wiedemann, 1817) and P. betae (Curtis, 1847) are documented for the first time in Nagorno-Karabakh, Armenia; P. bicolor was found on the leaves of Rumex confertus (Willd.), while P. betae infested the leaves of Beta vulgaris L., and Chenopodium album (L.). Thus, two species of the genus Pegomya cause serious damage to fodder and agricultural crops, causing 55 to 90% damage. Details of species description, ecology of larva and pupa, as well as the damage are included.
{"title":"First Records of Anthomyiidae (Diptera) from Nagorno-karabakh, Armenia","authors":"N. Grigoryan, Vahram Hayrapetyan, Mark. Y. Kalashyan, K. Balayan","doi":"10.55446/ije.2024.1588","DOIUrl":"https://doi.org/10.55446/ije.2024.1588","url":null,"abstract":"The root maggot flies are important pests of cultivated and non-cultivated plant species. This study on the invertebrate fauna of Nagorno-Karabakh was focused on the new leaf miners belonging to the Anthomyiidae. Pegomya bicolor (Wiedemann, 1817) and P. betae (Curtis, 1847) are documented for the first time in Nagorno-Karabakh, Armenia; P. bicolor was found on the leaves of Rumex confertus (Willd.), while P. betae infested the leaves of Beta vulgaris L., and Chenopodium album (L.). Thus, two species of the genus Pegomya cause serious damage to fodder and agricultural crops, causing 55 to 90% damage. Details of species description, ecology of larva and pupa, as well as the damage are included.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"45 3-4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140498583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Saleem Jaffar, Muhammad Yasin, Muhammad mazahir, AJmal Hussain, Aftab Ahmad Khan, Hongai Su, Tian Zeng
Insects host a diverse microbiota in their gut, encompassing bacteria, fungi, viruses, and archaea, influencing their physiology, nutrition, and overall health. The composition of these microbial communities varies with factors like insect species, diet, and the environment. Insect gut microbiota serve pivotal roles such as aiding digestion, synthesizing essential nutrients, safeguarding against pathogens, and detoxifying toxins, including insecticides. A particularly promising facet of their function lies in influencing the metabolism of insecticides. These gut microbiotas can either augment or diminish insecticide toxicity through mechanisms like enzymatic breakdown, sequestration, target site alteration, or modulation of the insect's immune response. Understanding these interactions is paramount for devising sustainable pest management strategies. This review explores into insect gut microbiota, their impact on insecticide susceptibility, and the potential use of microbial metabolites in eco-friendly pest control. We explore pesticide degradation mechanisms, the consequences of microbiota disruption on susceptibility, and the role of microbiota-produced metabolites in shaping pesticide efficacy. Ultimately, we highlight the potential of microbiota manipulation as a strategy to enhance insecticide effectiveness and combat pesticide resistance in pest management.
{"title":"Insect Gut Microbiota and Pesticide Degradation in Response to Innate Metabolites- a Review","authors":"Saleem Jaffar, Muhammad Yasin, Muhammad mazahir, AJmal Hussain, Aftab Ahmad Khan, Hongai Su, Tian Zeng","doi":"10.55446/ije.2024.856","DOIUrl":"https://doi.org/10.55446/ije.2024.856","url":null,"abstract":"Insects host a diverse microbiota in their gut, encompassing bacteria, fungi, viruses, and archaea, influencing their physiology, nutrition, and overall health. The composition of these microbial communities varies with factors like insect species, diet, and the environment. Insect gut microbiota serve pivotal roles such as aiding digestion, synthesizing essential nutrients, safeguarding against pathogens, and detoxifying toxins, including insecticides. A particularly promising facet of their function lies in influencing the metabolism of insecticides. These gut microbiotas can either augment or diminish insecticide toxicity through mechanisms like enzymatic breakdown, sequestration, target site alteration, or modulation of the insect's immune response. Understanding these interactions is paramount for devising sustainable pest management strategies. This review explores into insect gut microbiota, their impact on insecticide susceptibility, and the potential use of microbial metabolites in eco-friendly pest control. We explore pesticide degradation mechanisms, the consequences of microbiota disruption on susceptibility, and the role of microbiota-produced metabolites in shaping pesticide efficacy. Ultimately, we highlight the potential of microbiota manipulation as a strategy to enhance insecticide effectiveness and combat pesticide resistance in pest management.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"146 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140498091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The ameliorative role of combination of curcumin and ascorbic acid (low and high doses) was determined against biochemical and histopathological changes in liver caused due to synergistic effects of heavy metals (As, Cd and Pb) present above permissible limits in drinking water for 60 and 90 days in 84 male albino rats. The histology of liver in rats treated with a mixture of low as well as high doses of heavy metals showed mild alternations after 60 days and intense damage after 90 days. The content of biochemical parameters like proteins and lipids were significantly decreased and cholesterol, phospholipids and fatty acids were significantly increased after 60 and 90 days of treatment. The rats treated with curcumin and ascorbic acid showed restoration of histological damage and content of biochemical components indicated amelioration of hepatotoxicity effectively up to 60/90 days depending upon the dose of heavy metals, curcumin and ascorbic acid.
{"title":"Ameliorating Potential of Curcumin and Ascorbic Acid Against Hepatotoxicity Caused by Synergistic Effect of Heavy Metals in Male Albino Rats","authors":"Ramandeep Kaur, Navdeep Kaur, Prerna Sood","doi":"10.55446/ije.2024.1438","DOIUrl":"https://doi.org/10.55446/ije.2024.1438","url":null,"abstract":"The ameliorative role of combination of curcumin and ascorbic acid (low and high doses) was determined against biochemical and histopathological changes in liver caused due to synergistic effects of heavy metals (As, Cd and Pb) present above permissible limits in drinking water for 60 and 90 days in 84 male albino rats. The histology of liver in rats treated with a mixture of low as well as high doses of heavy metals showed mild alternations after 60 days and intense damage after 90 days. The content of biochemical parameters like proteins and lipids were significantly decreased and cholesterol, phospholipids and fatty acids were significantly increased after 60 and 90 days of treatment. The rats treated with curcumin and ascorbic acid showed restoration of histological damage and content of biochemical components indicated amelioration of hepatotoxicity effectively up to 60/90 days depending upon the dose of heavy metals, curcumin and ascorbic acid.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"356 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140500901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Ahir, M. Mahla, N. L. Dangi, Kuldeep Sharma, Beerendra Singh
Fall army worm (FAW) Spodoptera frugiperda (J E Smith) was found as major pest of maize in Rajasthan. Its peak larval incidence was observed in the first week of August (2.08 larvae/ plant) and second week of August (2.47 larvae/ plant) during 2019 and 2020, respectively. Its damage increased with crop growth and reached up to 48.33 and 58.33% during last week of September (39th SMW) during 2019 and 2020, respectively. The cob damage started in first week of September and peak damage was (36.67 and 42.22%) in the last week of September. Larval incidence exhibited positively significant correlation with mean temperature, and negative significance with rainfall.
{"title":"Population Dynamics of Fall Army Worm, Spodoptera Frugiperda (J E Smith) Infesting Maize","authors":"K. Ahir, M. Mahla, N. L. Dangi, Kuldeep Sharma, Beerendra Singh","doi":"10.55446/ije.2024.1283","DOIUrl":"https://doi.org/10.55446/ije.2024.1283","url":null,"abstract":"Fall army worm (FAW) Spodoptera frugiperda (J E Smith) was found as major pest of maize in Rajasthan. Its peak larval incidence was observed in the first week of August (2.08 larvae/ plant) and second week of August (2.47 larvae/ plant) during 2019 and 2020, respectively. Its damage increased with crop growth and reached up to 48.33 and 58.33% during last week of September (39th SMW) during 2019 and 2020, respectively. The cob damage started in first week of September and peak damage was (36.67 and 42.22%) in the last week of September. Larval incidence exhibited positively significant correlation with mean temperature, and negative significance with rainfall.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"55 9-10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140499340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Md. Shahidul Islam Khan, M. M. Rahman, M. Hossain, Md. Emam Hossain, T. Rimi
Field experiment was conducted at the central research field, during kharif (March to July 2022). The experiment was laidout in RCBD (randomized complete block design). Ten treatments were evaluated against jassid Amrasca biguttula (Ishida) and whitefly Bemisia tabaci (Gennadius). At vegetative stage, lowest number of A. biguttula (0.25/ leaf) and B. tabaci (0.12/ leaf) was observed with emamectin benzoate +abamectin @ 0.50 g/ l and chlorantraniliprole + thiamethoxam @ 0.50 ml/ l. respectively, A. biguttula(1.16/ leaf) and B. tabaci (0.33/ leaf) was recorded as lowest with emamectin benzoate + abamectin @0.75 g/ l at fruiting stage. The lowest fruit infestation (9.56%) was observed with chlorantraniliprole +thiamethoxam @ 0.75 ml/ l. Maximum number of ladybird beetle, Coccinella septempunctata (L) (2.59/plant); spider, Hippasa agelenoides (Simon) (1.20/ plant) and green lacewing, Chrysoperla carnea (Stephens)(2.50/ plant) were observed when no insecticide was used. Both chlorantraniliprole + thiamethoxam @0.75 ml/ l and emamectin benzoate + abamectin @ 0.75 g/ l led to the least number of C. septempunctata(0.33/ plant). Flubendiamide @ 0.50 g/ l led to insignificant number of H. agelenoides (0.33/ plant). Thehighest fruit yield (19.56 t/ ha) was achieved from emamectin benzoate + abamectin @ 0.50 g/ l.
{"title":"Efficacy of Insecticides Against Major Sucking Insect Pests of Okra and Their Effect on Natural Enemies","authors":"Md. Shahidul Islam Khan, M. M. Rahman, M. Hossain, Md. Emam Hossain, T. Rimi","doi":"10.55446/ije.2024.1328","DOIUrl":"https://doi.org/10.55446/ije.2024.1328","url":null,"abstract":"Field experiment was conducted at the central research field, during kharif (March to July 2022). The experiment was laidout in RCBD (randomized complete block design). Ten treatments were evaluated against jassid Amrasca biguttula (Ishida) and whitefly Bemisia tabaci (Gennadius). At vegetative stage, lowest number of A. biguttula (0.25/ leaf) and B. tabaci (0.12/ leaf) was observed with emamectin benzoate +abamectin @ 0.50 g/ l and chlorantraniliprole + thiamethoxam @ 0.50 ml/ l. respectively, A. biguttula(1.16/ leaf) and B. tabaci (0.33/ leaf) was recorded as lowest with emamectin benzoate + abamectin @0.75 g/ l at fruiting stage. The lowest fruit infestation (9.56%) was observed with chlorantraniliprole +thiamethoxam @ 0.75 ml/ l. Maximum number of ladybird beetle, Coccinella septempunctata (L) (2.59/plant); spider, Hippasa agelenoides (Simon) (1.20/ plant) and green lacewing, Chrysoperla carnea (Stephens)(2.50/ plant) were observed when no insecticide was used. Both chlorantraniliprole + thiamethoxam @0.75 ml/ l and emamectin benzoate + abamectin @ 0.75 g/ l led to the least number of C. septempunctata(0.33/ plant). Flubendiamide @ 0.50 g/ l led to insignificant number of H. agelenoides (0.33/ plant). Thehighest fruit yield (19.56 t/ ha) was achieved from emamectin benzoate + abamectin @ 0.50 g/ l.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"281 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140499886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：