Kolli Bharghavi, Rohini Sugandi, Burjikindi Madhuri, R. Channakeshava, Basavaraj S. Yenagi
The most significant effect of inadvertent application of pesticides has been the eradication of natural enemies. It is necessary to assess the insecticidal qualities, mammalian toxicity, and safety to natural enemies before incorporating in IPM. This study evaluates the impact of some insecticides on natural enemies of groundnut defoliators viz., Spodoptera litura (F), Helicoverpa armigera (Hübner), Thysanoplusia orichalcea (F), Aproaerema modicella (Deventer) and Maruca vitrata (Geyer). The results revealed maximum occurrence of coccinellid and spider predators in untreated control, and all the insecticides were comparable as regards their effect.
{"title":"Effect of Insecticides on Natural Enemies in Groundnut","authors":"Kolli Bharghavi, Rohini Sugandi, Burjikindi Madhuri, R. Channakeshava, Basavaraj S. Yenagi","doi":"10.55446/ije.2024.1885","DOIUrl":"https://doi.org/10.55446/ije.2024.1885","url":null,"abstract":"The most significant effect of inadvertent application of pesticides has been the eradication of natural enemies. It is necessary to assess the insecticidal qualities, mammalian toxicity, and safety to natural enemies before incorporating in IPM. This study evaluates the impact of some insecticides on natural enemies of groundnut defoliators viz., Spodoptera litura (F), Helicoverpa armigera (Hübner), Thysanoplusia orichalcea (F), Aproaerema modicella (Deventer) and Maruca vitrata (Geyer). The results revealed maximum occurrence of coccinellid and spider predators in untreated control, and all the insecticides were comparable as regards their effect.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"160 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140462389","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}
Karim Nébié, R. Dabiré, Alassane Koussoube, Issaka Zida, A. Sawadogo, Lucien Sawadogo, Antoine Richard Tiendrebeogo, Boureima Tassembédo, Rabiéta Semde, L. C. Otoidobiga, S. Niassy
The biology of Diachasmimorpha longicaudata (Ashmead) was studied on third instar larvae of Bactrocera dorsalis (Hendel) to optimize its mass rearing in the laboratory. The mean parasitoid emergence rate ranged from 55–92% during its first 13 days of life. The number of females was higher than that of males. The mean development time from egg to adult emergence was 20.14± 0.02 days in females and 17.72± 0.02 days in males. Fed females lived longer than fed males. Food-deprived females and males lived 72 hr after emergence. The lifespan of males and females was 16.42± 0.53 and 15.86± 0.35 days, respectively, in pairs exposed to B. dorsalis larvae.
{"title":"Biology of Diachasmimorpha longicaudata (Hymenoptera: Braconidae) Reared on Third Instar Larvae of Bactrocera dorsalis (Diptera: Tephritidae)","authors":"Karim Nébié, R. Dabiré, Alassane Koussoube, Issaka Zida, A. Sawadogo, Lucien Sawadogo, Antoine Richard Tiendrebeogo, Boureima Tassembédo, Rabiéta Semde, L. C. Otoidobiga, S. Niassy","doi":"10.55446/ije.2024.1319","DOIUrl":"https://doi.org/10.55446/ije.2024.1319","url":null,"abstract":"The biology of Diachasmimorpha longicaudata (Ashmead) was studied on third instar larvae of Bactrocera dorsalis (Hendel) to optimize its mass rearing in the laboratory. The mean parasitoid emergence rate ranged from 55–92% during its first 13 days of life. The number of females was higher than that of males. The mean development time from egg to adult emergence was 20.14± 0.02 days in females and 17.72± 0.02 days in males. Fed females lived longer than fed males. Food-deprived females and males lived 72 hr after emergence. The lifespan of males and females was 16.42± 0.53 and 15.86± 0.35 days, respectively, in pairs exposed to B. dorsalis larvae.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"1492 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140466749","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}
Brown mustard is one of the widely consumed leafy vegetables in Sikkim, India. The present investigation was an effort to find out an alternative approach to control aphid incidence organically, by using locally available plant extracts with high spray efficacy on mustard aphid Lipaphis erysimi (kalt) in the organic state of Sikkim. The experiment included six plant extracts viz. Schima wallichii, Datura stramonium, Athyrium filix-femina, Piper betle, Alnus nepalensis and Artemisia vulgaris along with cow urine and neem oil at two concentrations. Results revealed that maximum reduction in incidence was observed with Schima wallichii @5%. Growth, yield and quality components were also found to be significantly superior in the treatment with S. wallichii.
{"title":"Efficacy of Plant Extracts against Aphid Lipaphis erysimi (Kalt) in Brown Mustard Brassica juncea L","authors":"Kunal Kaushik, Rajesh Kumar","doi":"10.55446/ije.2024.1664","DOIUrl":"https://doi.org/10.55446/ije.2024.1664","url":null,"abstract":"Brown mustard is one of the widely consumed leafy vegetables in Sikkim, India. The present investigation was an effort to find out an alternative approach to control aphid incidence organically, by using locally available plant extracts with high spray efficacy on mustard aphid Lipaphis erysimi (kalt) in the organic state of Sikkim. The experiment included six plant extracts viz. Schima wallichii, Datura stramonium, Athyrium filix-femina, Piper betle, Alnus nepalensis and Artemisia vulgaris along with cow urine and neem oil at two concentrations. Results revealed that maximum reduction in incidence was observed with Schima wallichii @5%. Growth, yield and quality components were also found to be significantly superior in the treatment with S. wallichii.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"38 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140463744","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. Venkatesh, S. Jeyarani, M. Murugan, P. Kavitha, R. Venkatachalam, K. Suresh, K. Prakash
Screening 375 cassava genotypes at Tapioca and Castor Research Station, Salem, India against whitefly, Bemisia tabaci (Gennadius) revealed eight highly resistant genotypes namely, Me 743, Me 650, Me 637, Me 739, Me 148, Me 874, Me 25, and Me 707, maintaining fewer than 20 insects/plant across crucial growth stages (3-6 months after planting). Trichome analysis revealed prevalent non-glandular, simple, single-celled elongated or irregular-shaped structures. Correlation studies between whitefly incidence and trichome density indicated a positive relationship (0.39) without statistical significance, emphasizing the role of trichomes in conferring resistance. India’s cassava genetic diversity holds significant promise in the creation of resistant variety.
印度塞勒姆木薯和蓖麻研究站对 375 个木薯基因型进行了粉虱抗性筛选，发现了 8 个高抗性基因型，即 Me 743、Me 650、Me 637、Me 739、Me 148、Me 874、Me 25 和 Me 707，这些基因型在关键生长阶段（种植后 3-6 个月）每株的虫量均少于 20 头。毛状体分析显示，普遍存在非腺体、简单、单细胞的拉长或不规则形状结构。粉虱发生率与毛状体密度之间的相关性研究表明两者呈正相关（0.39），但无统计学意义，这强调了毛状体在赋予抗性方面的作用。印度木薯的遗传多样性为培育抗性品种带来了巨大希望。
{"title":"Decoding Antixenotic Mechanism of Resistance in Cassava Genotypes against Whitefly, Bemisia tabaci (Gennadius)","authors":"K. Venkatesh, S. Jeyarani, M. Murugan, P. Kavitha, R. Venkatachalam, K. Suresh, K. Prakash","doi":"10.55446/ije.2024.1874","DOIUrl":"https://doi.org/10.55446/ije.2024.1874","url":null,"abstract":"Screening 375 cassava genotypes at Tapioca and Castor Research Station, Salem, India against whitefly, Bemisia tabaci (Gennadius) revealed eight highly resistant genotypes namely, Me 743, Me 650, Me 637, Me 739, Me 148, Me 874, Me 25, and Me 707, maintaining fewer than 20 insects/plant across crucial growth stages (3-6 months after planting). Trichome analysis revealed prevalent non-glandular, simple, single-celled elongated or irregular-shaped structures. Correlation studies between whitefly incidence and trichome density indicated a positive relationship (0.39) without statistical significance, emphasizing the role of trichomes in conferring resistance. India’s cassava genetic diversity holds significant promise in the creation of resistant variety.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"83 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140464215","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}
Mintesnot Worku, Yohannes Kefale, Misganaw Gelaye, Moges Marie
Spodoptera frugiperda (J E Smith) is an important pest of sorghum, which is causing heavy losses in Ethiopia. This study was conducted at the Metema experimental site Gondar, Ethiopia during main cropping seasons of 2020 and 2021 to determining appropriate rate of selected insecticides against S. frugiperda larvae using randomized complete block design with three replications. Melkam variety used at a seed rate of 15 kg ha-1 and plot size of 22.5 m2 was used. Plots sprayed with Proven and Agrolambacin in company recommendation rate reduced the incidence of larvae and gave higher grain yield. Cost benefit analysis showed that maximum net benefit (ETB 63,410.3 ha-1) was obtained with followed by Agrolambacin 55535 ETB ha-1.
Spodoptera frugiperda (J E Smith) 是高粱的一种重要害虫，在埃塞俄比亚造成了严重损失。本研究于 2020 年和 2021 年的主要耕种季节在埃塞俄比亚贡达尔的梅特马试验场进行，采用随机完全区组设计，三次重复，以确定选定的杀虫剂对 S. frugiperda 幼虫的适当杀虫率。使用的 Melkam 品种播种量为 15 kg ha-1，小区面积为 22.5 m2。按照公司推荐的比例喷洒 Proven 和 Agrolambacin 的地块降低了幼虫发生率，并提高了谷物产量。成本效益分析表明，喷洒普罗旺斯的净效益最高（63410.3 ETB ha-1），其次是 Agrolambacin 55535 ETB ha-1。
{"title":"Efficacy of Insecticides against Fall Army Worm Spodoptera frugiperda (J E Smith) on Sorghum","authors":"Mintesnot Worku, Yohannes Kefale, Misganaw Gelaye, Moges Marie","doi":"10.55446/ije.2024.1835","DOIUrl":"https://doi.org/10.55446/ije.2024.1835","url":null,"abstract":"Spodoptera frugiperda (J E Smith) is an important pest of sorghum, which is causing heavy losses in Ethiopia. This study was conducted at the Metema experimental site Gondar, Ethiopia during main cropping seasons of 2020 and 2021 to determining appropriate rate of selected insecticides against S. frugiperda larvae using randomized complete block design with three replications. Melkam variety used at a seed rate of 15 kg ha-1 and plot size of 22.5 m2 was used. Plots sprayed with Proven and Agrolambacin in company recommendation rate reduced the incidence of larvae and gave higher grain yield. Cost benefit analysis showed that maximum net benefit (ETB 63,410.3 ha-1) was obtained with followed by Agrolambacin 55535 ETB ha-1.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"12 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140463841","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}
Field experiments were conducted during 2021-2022 and 2022-2023 to determine the population dynamics of mustard aphid Lipaphis erysimi (Kalt) and its coccinellid predators on two mustard varieties viz. Rohini (highly susceptible) and RH0749 (least susceptible) in relation with different abiotic factors. The infestation was observed in last week of December to the first week of March, the overall mean indicates the incidence was at its peak in the second week of February. Maximum incidence of 160-120/ five plants was recorded on Rohini while 160-100/five plants on RH0749. The predatory activities of coccinellids viz., Cheilomenes sexmaculata (L), Coccinella septempunctata (F) and Coccinella transversalis (F) revealed significant positive correlation with aphid incidence.
{"title":"Population Dynamics of Mustard Aphid Lipaphis erysimi (Kalt) and its Coccinellid Predators","authors":"Archana Shukla, Ashwani Kumar","doi":"10.55446/ije.2024.1553","DOIUrl":"https://doi.org/10.55446/ije.2024.1553","url":null,"abstract":"Field experiments were conducted during 2021-2022 and 2022-2023 to determine the population dynamics of mustard aphid Lipaphis erysimi (Kalt) and its coccinellid predators on two mustard varieties viz. Rohini (highly susceptible) and RH0749 (least susceptible) in relation with different abiotic factors. The infestation was observed in last week of December to the first week of March, the overall mean indicates the incidence was at its peak in the second week of February. Maximum incidence of 160-120/ five plants was recorded on Rohini while 160-100/five plants on RH0749. The predatory activities of coccinellids viz., Cheilomenes sexmaculata (L), Coccinella septempunctata (F) and Coccinella transversalis (F) revealed significant positive correlation with aphid incidence.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"44 32","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140464633","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}
Current investigation deciphered the differential level of tolerance in diverse Brassica juncea cultivars, and variations in the preference and population buildup of Mustard aphid, Lipaphis erysimi. Cultivars RLC 3, NRCHB 101 and Pusa Mustard 27 were least preferred by L. erysimi. Further, total number of aphids and aphid resistance index under natural infestation condition were significantly lower on RLC 3, NRCHB 101, RH 725 and Pusa Mustard 27. However, under artificial conditions, total number of aphids, aphid resistance index and multiplication rates were significantly lower on DRMR 150-35, RH 0406, NRCHB 101, Pusa Mustard 27 and RLC 3. The cultivars DRMR 150-35, RH 0406, NRCHB 101, RLC 3, RH 725 and Pusa Mustard 27 were found with least preference, lower aphid resistance index, establishment, population buildup of L. erysimi under natural and/or artificial infestation conditions, thus can be used in Brassica improvement program.
{"title":"Tolerance in Brassica juncea Cultivars Vis-a-Vis Population Buildup of Mustard Aphid Lipaphis erysimi (Kalt.)","authors":"K. Chandrakumara, Mukesh K. Dhillon, Naveen Singh","doi":"10.55446/ije.2024.1707","DOIUrl":"https://doi.org/10.55446/ije.2024.1707","url":null,"abstract":"Current investigation deciphered the differential level of tolerance in diverse Brassica juncea cultivars, and variations in the preference and population buildup of Mustard aphid, Lipaphis erysimi. Cultivars RLC 3, NRCHB 101 and Pusa Mustard 27 were least preferred by L. erysimi. Further, total number of aphids and aphid resistance index under natural infestation condition were significantly lower on RLC 3, NRCHB 101, RH 725 and Pusa Mustard 27. However, under artificial conditions, total number of aphids, aphid resistance index and multiplication rates were significantly lower on DRMR 150-35, RH 0406, NRCHB 101, Pusa Mustard 27 and RLC 3. The cultivars DRMR 150-35, RH 0406, NRCHB 101, RLC 3, RH 725 and Pusa Mustard 27 were found with least preference, lower aphid resistance index, establishment, population buildup of L. erysimi under natural and/or artificial infestation conditions, thus can be used in Brassica improvement program.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"633 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140469550","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. Manoj, T. S. Varghese, N. Anitha, M. S. Nisha, V. Gayathri
Contact, repellent and antifeedant bioassays of essential oils (EO’s) viz., basil oil and citronella oil were evaluated against hadda beetle Henosepilachna vigintioctopunctata (F) in brinjal. Based on the results of leaf dip bioassay, the LC50 and LC90 values of basil oil and citronella oil were 1.25% and 2.85%, 0.93% and 1.52%, respectively at 24 hrs after treatment (HAT). While the corresponding LC50 and LC90 values at 48 HAT were 0.85% and 1.70%, 0.63% and 1.14%, respectively. Repellent and antifeedant effect of the chosen essential oils were also evaluated by modified preference method and no choice method, respectively. At 0.5 to 1% concentration, both basil and citronella oil showed 90-100% repellence at 30 and 60 min of treatment. 100% antifeedant effect was also observed at the same concentration (0.5 to 1%) for both the EO’s at 24 HAT. GC-FID/GC-MS analysis of basil and citronella oil revealed that the predominant component of basil oil was methyl chavicol (75.73%), followed by linalool (18.21%) and cuprenene (1.58%); in citronella oil, geranial (64.77%) was the most predominant component followed by citronellyl acetate (7.92%), geraniol (7.08%), (Z) iso citral (5.29%) and neral (3.60%).
{"title":"Toxicity Bioassays of Essential Oils against Hadda Beetle Henosepilachna vigintioctopunctata (F)","authors":"K. Manoj, T. S. Varghese, N. Anitha, M. S. Nisha, V. Gayathri","doi":"10.55446/ije.2024.1339","DOIUrl":"https://doi.org/10.55446/ije.2024.1339","url":null,"abstract":"Contact, repellent and antifeedant bioassays of essential oils (EO’s) viz., basil oil and citronella oil were evaluated against hadda beetle Henosepilachna vigintioctopunctata (F) in brinjal. Based on the results of leaf dip bioassay, the LC50 and LC90 values of basil oil and citronella oil were 1.25% and 2.85%, 0.93% and 1.52%, respectively at 24 hrs after treatment (HAT). While the corresponding LC50 and LC90 values at 48 HAT were 0.85% and 1.70%, 0.63% and 1.14%, respectively. Repellent and antifeedant effect of the chosen essential oils were also evaluated by modified preference method and no choice method, respectively. At 0.5 to 1% concentration, both basil and citronella oil showed 90-100% repellence at 30 and 60 min of treatment. 100% antifeedant effect was also observed at the same concentration (0.5 to 1%) for both the EO’s at 24 HAT. GC-FID/GC-MS analysis of basil and citronella oil revealed that the predominant component of basil oil was methyl chavicol (75.73%), followed by linalool (18.21%) and cuprenene (1.58%); in citronella oil, geranial (64.77%) was the most predominant component followed by citronellyl acetate (7.92%), geraniol (7.08%), (Z) iso citral (5.29%) and neral (3.60%).","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"502 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140466173","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}
A field experiment on the population dynamics of major lepidopteran pests on cauliflower revealed the maximum incidence of diamond back moth (Plutella xylostella L), leaf webber (Crocidolomia pavonana F), leaf eating caterpillar (Spodoptera litura F) and semilooper (Trichoplusia ni Hubner) on 7th, 4th, 6th and 5th standard meteorological week (5.30, 3.90, 7.20 and 2.90 larvae/ plant, respectively). The correlation of incidence of larvae of diamond back moth and leaf eating caterpillar showed a highly significant positive correlation with bright sunshine hours (r = 0.699 and 0.772, respectively). Evening relative humidity showed a highly significant negative correlation (r = -0.687 and -0.749, respectively). Maximum and minimum temperature and morning vapour pressure exhibited a highly significant negative correlation with the leaf webber (r = -0.696, -0.866 and -0.826, respectively). The incidence of semilooper showed a significant negative correlation with minimum temperature and morning vapour pressure (r = -0.698 and -0.605, respectively).
{"title":"Population Dynamics of Major Lepidopteran Pests on Cauliflower","authors":"Anitha V., Ravikumar Kalasariya","doi":"10.55446/ije.2024.1574","DOIUrl":"https://doi.org/10.55446/ije.2024.1574","url":null,"abstract":"A field experiment on the population dynamics of major lepidopteran pests on cauliflower revealed the maximum incidence of diamond back moth (Plutella xylostella L), leaf webber (Crocidolomia pavonana F), leaf eating caterpillar (Spodoptera litura F) and semilooper (Trichoplusia ni Hubner) on 7th, 4th, 6th and 5th standard meteorological week (5.30, 3.90, 7.20 and 2.90 larvae/ plant, respectively). The correlation of incidence of larvae of diamond back moth and leaf eating caterpillar showed a highly significant positive correlation with bright sunshine hours (r = 0.699 and 0.772, respectively). Evening relative humidity showed a highly significant negative correlation (r = -0.687 and -0.749, respectively). Maximum and minimum temperature and morning vapour pressure exhibited a highly significant negative correlation with the leaf webber (r = -0.696, -0.866 and -0.826, respectively). The incidence of semilooper showed a significant negative correlation with minimum temperature and morning vapour pressure (r = -0.698 and -0.605, respectively).","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"317 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140468599","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}
Niraj Guleria, S. Nebapure, P. D. Kamala Jayanthi, S. B. Suby, P. Saravan Kumar
In the present study maize plant volatiles were collected by solvent assisted extraction (SAE) using hexane and dichloromethane (DCM) solvents. The evaluation of volatile extracts against male individuals of Chilo partellus through Gas Chromatography-Electroantennogram Detector (GC-EAD) revealed the presence bioactive compounds. The identification of these bioactive compounds through Gas Chromatography-Mass Spectroscopy (GC-MS) revealed that male individuals of C. partellus elicited response to 20 maize volatile compounds, out of which benzyl alcohol and myristic acid were detected in both the solvent extracts. These bioactive volatile compounds can be further explored for developing lures either of plant volatiles or in combination with pheromone.
{"title":"Electrophysiological Response of Chilo partellus to Maize Volatiles","authors":"Niraj Guleria, S. Nebapure, P. D. Kamala Jayanthi, S. B. Suby, P. Saravan Kumar","doi":"10.55446/ije.2024.1626","DOIUrl":"https://doi.org/10.55446/ije.2024.1626","url":null,"abstract":"In the present study maize plant volatiles were collected by solvent assisted extraction (SAE) using hexane and dichloromethane (DCM) solvents. The evaluation of volatile extracts against male individuals of Chilo partellus through Gas Chromatography-Electroantennogram Detector (GC-EAD) revealed the presence bioactive compounds. The identification of these bioactive compounds through Gas Chromatography-Mass Spectroscopy (GC-MS) revealed that male individuals of C. partellus elicited response to 20 maize volatile compounds, out of which benzyl alcohol and myristic acid were detected in both the solvent extracts. These bioactive volatile compounds can be further explored for developing lures either of plant volatiles or in combination with pheromone.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"796 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140469440","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}
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