Lethal role of some insecticides including one of recent introduction (broflanilide) on Trichgramma japonicum Ashmead (Hymenoptera: Trichogrammatidae) was assessed by exposing its juvenile stages (egg, larva and pupa) inside the host eggs and adults by residual contact. Transgenerational effect was also studied. The results revealed varied level of toxicity among these test methods. Treatment (insecticide) wise overall toxicity was also determined, and insecticides were grouped into different toxicity classes. Chlorantraniliprole and flubendiamide were harmless (< 30% mortality) followed by cyantraniliprole, emamectin benzoate, novaluron + indoxacarb and broflanilide which were harmless to slightly harmful (< 79% mortality). Slightly harmful was teflubenzuron, chlorfenapyr and azadirachtin. Spinosad was slightly harmful to moderately harmful (< 99% mortality).
{"title":"Toxicity Response of Some Insecticides on Insect Egg Parasitoid Trichogramma japonicum (Ashmead)","authors":"Md. Imraj Zaman, L. C. Patel","doi":"10.55446/ije.2024.1409","DOIUrl":"https://doi.org/10.55446/ije.2024.1409","url":null,"abstract":"Lethal role of some insecticides including one of recent introduction (broflanilide) on Trichgramma japonicum Ashmead (Hymenoptera: Trichogrammatidae) was assessed by exposing its juvenile stages (egg, larva and pupa) inside the host eggs and adults by residual contact. Transgenerational effect was also studied. The results revealed varied level of toxicity among these test methods. Treatment (insecticide) wise overall toxicity was also determined, and insecticides were grouped into different toxicity classes. Chlorantraniliprole and flubendiamide were harmless (< 30% mortality) followed by cyantraniliprole, emamectin benzoate, novaluron + indoxacarb and broflanilide which were harmless to slightly harmful (< 79% mortality). Slightly harmful was teflubenzuron, chlorfenapyr and azadirachtin. Spinosad was slightly harmful to moderately harmful (< 99% mortality).","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"136 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140467856","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}
Patil S. A., Kadam D. R., Deshmukh K. V., Bankar D. R., Parjane N. V.
During kharif 2019, the efficacy of combined insecticides against the fall army worm Spodoptera frugiperda (J E Smith) in maize was assessed. Chlorantraniliprole 9.3%+ lambdacyhalothrin 4.6%ZC was the most effective. Fipronil 4% + acetamiprid 4%SC was less effective. All treatments were effective in increasing the yield- chlorantraniliprole 9.3% + lambdacyhalothrin 4.6 %ZC gave maximum grain yield (40.70 q/ ha) while maximum benefit cost ratio was obtained with thiamethoxam 12.6 + lambdacyhalothrin 9.5%ZC (1:28.33).
{"title":"Efficacy of Ready-Mix Insecticides against Fall Army Worm Spodoptera frugiperda (J E Smith) on Maize","authors":"Patil S. A., Kadam D. R., Deshmukh K. V., Bankar D. R., Parjane N. V.","doi":"10.55446/ije.2024.1453","DOIUrl":"https://doi.org/10.55446/ije.2024.1453","url":null,"abstract":"During kharif 2019, the efficacy of combined insecticides against the fall army worm Spodoptera frugiperda (J E Smith) in maize was assessed. Chlorantraniliprole 9.3%+ lambdacyhalothrin 4.6%ZC was the most effective. Fipronil 4% + acetamiprid 4%SC was less effective. All treatments were effective in increasing the yield- chlorantraniliprole 9.3% + lambdacyhalothrin 4.6 %ZC gave maximum grain yield (40.70 q/ ha) while maximum benefit cost ratio was obtained with thiamethoxam 12.6 + lambdacyhalothrin 9.5%ZC (1:28.33).","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"391 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140464796","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. Priyanka, O. Shaila, M. Anuradha, V. Divya Rani, M. Rajashekhar
Efficacy of some newer insecticides were tested against the groundnut leaf miner Aproaerema modicella (Deventer), tobacco caterpillar Spodoptera litura (F), gram pod borer Helicoverpa armigera (Hubner) and natural enemies (coccinellids) of groundnut. Tolfenpyrad @ 2.5ml/ l was significantly superior in controlling defoliator pests. The next best treatments were tolfenpyrad @ 2ml/ l, spinetoram @ 0.5ml/l, tolfenpyrad @ 1.5ml/ l, thiamethoxam+ lambdacyhalothrin @ 0.4ml/ l. The highest incremental cost benefit ratio (ICBR) was obtained in the treatments with tolfenpyrad @ 2.5ml/ l.
{"title":"Effect of Newer Insecticides against the Major Insect Pests of Groundnut","authors":"N. Priyanka, O. Shaila, M. Anuradha, V. Divya Rani, M. Rajashekhar","doi":"10.55446/ije.2024.1868","DOIUrl":"https://doi.org/10.55446/ije.2024.1868","url":null,"abstract":"Efficacy of some newer insecticides were tested against the groundnut leaf miner Aproaerema modicella (Deventer), tobacco caterpillar Spodoptera litura (F), gram pod borer Helicoverpa armigera (Hubner) and natural enemies (coccinellids) of groundnut. Tolfenpyrad @ 2.5ml/ l was significantly superior in controlling defoliator pests. The next best treatments were tolfenpyrad @ 2ml/ l, spinetoram @ 0.5ml/l, tolfenpyrad @ 1.5ml/ l, thiamethoxam+ lambdacyhalothrin @ 0.4ml/ l. The highest incremental cost benefit ratio (ICBR) was obtained in the treatments with tolfenpyrad @ 2.5ml/ l.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"509 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140466158","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}
Cuticular hydrocarbons (CHCs) of Drosophila ananassae (Doleschall) was characterized and identified using gas chromatography and mass spectrometry (GC-MS) analysis. A high % of methyl-branched alkanes were identified in all inversion (2LA, 3LA and 2LA+3LA) and inversion-free strains followed by linear alkanes and alkenes. The present work unfolds the significant patterns of variations in the isomeric forms of methylated alkanes between the inversion and inversion free strains (F-46.6; df-3, p 0.005), and non-significant between the sex (F-2.14; df-1, p 0.2394). But in linear alkanes shows significant variation between the inversion strains (F-30.49; df-3, p 0.009) and between the male and female (F-115.45; df-1, p 0.001) was observed. In particular there is a significant correlation between the chromosomal inversion and synthesis of CHCs in D. ananassae. Unique blend of CHCs in Drosophila performs dual role as desiccation resistance and act as chemical signalling molecule. Linear alkanes are majorly involved in desiccation resistance but in methyl- branched CHCs length variation is a key determinant of desiccation resistance. Presence of longer methyl- branched alkanes and higher desiccation resistance, shorter the carbon chain length act as a signalling molecules. The current study revealed the influence of chromosomal inversion on the cuticular hydrocarbon profile in D. ananassae.
{"title":"Characterization of Dominant Cuticular Hydrocarbons in Inversion and Inversion-Free Strains of Drosophila ananassae (Doleschall)","authors":"K. R S, Jayaramu S. C.","doi":"10.55446/ije.2024.1275","DOIUrl":"https://doi.org/10.55446/ije.2024.1275","url":null,"abstract":"Cuticular hydrocarbons (CHCs) of Drosophila ananassae (Doleschall) was characterized and identified using gas chromatography and mass spectrometry (GC-MS) analysis. A high % of methyl-branched alkanes were identified in all inversion (2LA, 3LA and 2LA+3LA) and inversion-free strains followed by linear alkanes and alkenes. The present work unfolds the significant patterns of variations in the isomeric forms of methylated alkanes between the inversion and inversion free strains (F-46.6; df-3, p 0.005), and non-significant between the sex (F-2.14; df-1, p 0.2394). But in linear alkanes shows significant variation between the inversion strains (F-30.49; df-3, p 0.009) and between the male and female (F-115.45; df-1, p 0.001) was observed. In particular there is a significant correlation between the chromosomal inversion and synthesis of CHCs in D. ananassae. Unique blend of CHCs in Drosophila performs dual role as desiccation resistance and act as chemical signalling molecule. Linear alkanes are majorly involved in desiccation resistance but in methyl- branched CHCs length variation is a key determinant of desiccation resistance. Presence of longer methyl- branched alkanes and higher desiccation resistance, shorter the carbon chain length act as a signalling molecules. The current study revealed the influence of chromosomal inversion on the cuticular hydrocarbon profile in D. ananassae.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"93 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140465579","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}
O. Adagba, Yao N’guessan, Tano Djè Kévin Christian, Ossey Christian Landry, Soro Senan
Flea beetle Podagrica decolorata (Duvivier) is a defoliator of okra. The study of some biological parameters of bedbug, Rhynocoris rapax (Stal) was carried out in locality of Man, The study is part of the control of this crop pest. Boxes were used to rear the insects. A thermohygrometer was used to determine the regular temperature and humidity. Larval monitoring revealed five larval stages, with the longest development time of 16.28±2.41 days for stage 5. The highest survival rate was observed for fifth-stage larvae (96.09± 03.14%). Female biological cycle was an mean 82.10± 09.41 days, and male biological cycle was an mean 68.67± 08.44 days. The sex ratio was 0.58. This study revealed positive correlations between humidity and the larval cycle, followed by negative correlations between temperature and the larval cycle.
{"title":"Bioecology of Reduviid Rhynocoris Rapax- Predator of Podagrica decolorata","authors":"O. Adagba, Yao N’guessan, Tano Djè Kévin Christian, Ossey Christian Landry, Soro Senan","doi":"10.55446/ije.2024.1596","DOIUrl":"https://doi.org/10.55446/ije.2024.1596","url":null,"abstract":"Flea beetle Podagrica decolorata (Duvivier) is a defoliator of okra. The study of some biological parameters of bedbug, Rhynocoris rapax (Stal) was carried out in locality of Man, The study is part of the control of this crop pest. Boxes were used to rear the insects. A thermohygrometer was used to determine the regular temperature and humidity. Larval monitoring revealed five larval stages, with the longest development time of 16.28±2.41 days for stage 5. The highest survival rate was observed for fifth-stage larvae (96.09± 03.14%). Female biological cycle was an mean 82.10± 09.41 days, and male biological cycle was an mean 68.67± 08.44 days. The sex ratio was 0.58. This study revealed positive correlations between humidity and the larval cycle, followed by negative correlations between temperature and the larval cycle.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"146 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140498087","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}
Amit Choudhary, Bharathi Mohindru, Ramandeep Kaur, Jaspal Singh, P. Chhuneja
Bees use sun’s position for navigation and thus a solar eclipse may affect this capability. Present study was conducted during partial solar eclipse on June 21, 2020 at Ludhiana, Punjab. Apis mellifera L foragers’ activity at the hive entrance was recorded through a digital bee counter. Bees’ activity increased normally, i.e. 771 and 823 bees/ 15 mins coming in and going out of the hive, respectively before the start of eclipsephase. At peak obscuration it decreased slightly but non-significantly. Changes in hive temperature andhumidity might have limited the recruitment of foragers. Hence, no peak activity was recorded duringpeak obscuration, which otherwise was recorded on ordinary days at 1345 hr.
{"title":"Partial Solar Eclipse Affects Apis Mellifera L Forging Activity","authors":"Amit Choudhary, Bharathi Mohindru, Ramandeep Kaur, Jaspal Singh, P. Chhuneja","doi":"10.55446/ije.2024.708","DOIUrl":"https://doi.org/10.55446/ije.2024.708","url":null,"abstract":"Bees use sun’s position for navigation and thus a solar eclipse may affect this capability. Present study was conducted during partial solar eclipse on June 21, 2020 at Ludhiana, Punjab. Apis mellifera L foragers’ activity at the hive entrance was recorded through a digital bee counter. Bees’ activity increased normally, i.e. 771 and 823 bees/ 15 mins coming in and going out of the hive, respectively before the start of eclipsephase. At peak obscuration it decreased slightly but non-significantly. Changes in hive temperature andhumidity might have limited the recruitment of foragers. Hence, no peak activity was recorded duringpeak obscuration, which otherwise was recorded on ordinary days at 1345 hr.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"14 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140498537","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}
Sunflower crop was grown during rabi 2021 and summer 2022 at the M S Swaminathan School of Agriculture, Centurion University of Technology and Management, Gajapati, Odisha. Investigation has been made on diversity of different pollinating agents associated with sunflower by observing their abundance, diversity, percentage contribution following the statistical diversity indices. The present study revealed eighteen different pollinators associated with sunflower. The Indian honey bee, Apis cerana indica (F)was recorded as the most dominant hymenopteran pollinator followed by the rock bee Apis dorsata(F)from family Apidae. The foraging activity of A. c. indica was observed to be maximum during midflowering stage (1.72± 1.23 and 2.78± 1.81 bees/ capitulum/ min in 1st and 2nd season, respectively) withhighest activity during 01:00-02:00 PM (3.02 bees/ capitulum/min.) and 10:00 to 11:00 AM (4.42 bees/capitulum/ min) during first and second seasons respectively. The Apidae family members’ i.e. A. c. indica and A. dorsata have attained eudominant and other pollinators were belonging mostly to the recedentand subrecedent classes based on dominance status. The diversity indices showed mid flowering stageattracted the most diversified group of pollinators.
向日葵作物于 2021 年雨季和 2022 年夏季在奥迪沙邦加贾帕蒂的 Centurion 技术与管理大学 M S Swaminathan 农学院种植。通过观察向日葵不同授粉媒介的丰度、多样性、贡献百分比以及统计多样性指数，对向日葵不同授粉媒介的多样性进行了调查。本研究揭示了与向日葵相关的 18 种不同授粉媒介。据记录，印度蜜蜂（Apis cerana indica，F）是最主要的膜翅目传粉媒介，其次是喙蜂科的岩蜂（Apis dorsata，F）。在第一季和第二季中，中蜂的觅食活动在开花中期最为活跃（第一季和第二季分别为 1.72± 1.23 和 2.78± 1.81 只蜜蜂/头状花序/分钟），在下午 01:00-02:00 （3.02 只蜜蜂/头状花序/分钟）和上午 10:00-11:00 （4.42 只蜜蜂/头状花序/分钟）时最为活跃。根据优势地位，蛛形纲成员（A. c. indica 和 A. dorsata）已达到优势地位，其他传粉昆虫大多属于后进和次后进级别。多样性指数显示，花期中期吸引了最多样化的传粉昆虫。
{"title":"Diversity of Pollinators on Sunflower","authors":"D. Padhy, C. R. Satapathy, S. Borkataki","doi":"10.55446/ije.2024.1631","DOIUrl":"https://doi.org/10.55446/ije.2024.1631","url":null,"abstract":"Sunflower crop was grown during rabi 2021 and summer 2022 at the M S Swaminathan School of Agriculture, Centurion University of Technology and Management, Gajapati, Odisha. Investigation has been made on diversity of different pollinating agents associated with sunflower by observing their abundance, diversity, percentage contribution following the statistical diversity indices. The present study revealed eighteen different pollinators associated with sunflower. The Indian honey bee, Apis cerana indica (F)was recorded as the most dominant hymenopteran pollinator followed by the rock bee Apis dorsata(F)from family Apidae. The foraging activity of A. c. indica was observed to be maximum during midflowering stage (1.72± 1.23 and 2.78± 1.81 bees/ capitulum/ min in 1st and 2nd season, respectively) withhighest activity during 01:00-02:00 PM (3.02 bees/ capitulum/min.) and 10:00 to 11:00 AM (4.42 bees/capitulum/ min) during first and second seasons respectively. The Apidae family members’ i.e. A. c. indica and A. dorsata have attained eudominant and other pollinators were belonging mostly to the recedentand subrecedent classes based on dominance status. The diversity indices showed mid flowering stageattracted the most diversified group of pollinators.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"64 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140498322","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}
Silk worm Bombyx mori L is a holometabolous, lepidopteran model for investigating the effect of various molecules. The sex-limited character of cocoon color is useful for the separation of male and female pupae during commercial seed production. Fecundity is the major limitation of cocoon colour sex-limited breeds. Spermidine is a polyamine, present in all living cells involved in the growth and reproduction of many organisms. The effect of spermidine on testicular and ovarian development in the selected bivoltine sex-limited breed; APS27SL and non-sex-limited hybrid; APS45 x APS12 is studied in the present work. Results showed that foliar feeding of spermidine significantly increased pupal growth, testicular and ovarian growth, number of ovarioles and ovules in the sex-limited breed. Moreover, increased expression of Bm-tektin was observed in the testes of spermidine fed groups. Thus, the study suggests that foliar feeding of spermidine can be used to overcome the limitation of reproductive potential in sex-limited breeds.
丝虫 Bombyx mori L 是一种全代谢鳞翅目昆虫模型，可用于研究各种分子的影响。茧色的性别限制特性有助于在商业种子生产过程中分离雌雄蛹。繁殖力是茧色性别限制品种的主要限制因素。精胺是一种多胺，存在于所有生物细胞中，参与许多生物的生长和繁殖。本实验研究了精胺对所选双峰性限制品种 APS27SL 和非性限制杂交种 APS45 x APS12 的睾丸和卵巢发育的影响。结果表明，叶面喷施亚精胺能显著提高有性限品种的蛹的生长、睾丸和卵巢的生长、卵巢和胚珠的数量。此外，在喂食亚精胺组的睾丸中观察到 Bm-tektin 的表达增加。因此，该研究表明，叶面喷施亚精胺可用于克服性别受限品种的繁殖潜力限制。
{"title":"Effect of Spermidine Supplementation on Testicular And Ovarian Development in Sex-limited and Non-sex-limited Bivoltine Silk Worm Breeds of Bombyx mori L","authors":"Madhavi Kasa, Brinda Goda Lakshmi Didugu, Seetharamulu Jolapuram, Jagannatha Raju Poosapati, Anitha Mamillapalli","doi":"10.55446/ije.2024.1585","DOIUrl":"https://doi.org/10.55446/ije.2024.1585","url":null,"abstract":"Silk worm Bombyx mori L is a holometabolous, lepidopteran model for investigating the effect of various molecules. The sex-limited character of cocoon color is useful for the separation of male and female pupae during commercial seed production. Fecundity is the major limitation of cocoon colour sex-limited breeds. Spermidine is a polyamine, present in all living cells involved in the growth and reproduction of many organisms. The effect of spermidine on testicular and ovarian development in the selected bivoltine sex-limited breed; APS27SL and non-sex-limited hybrid; APS45 x APS12 is studied in the present work. Results showed that foliar feeding of spermidine significantly increased pupal growth, testicular and ovarian growth, number of ovarioles and ovules in the sex-limited breed. Moreover, increased expression of Bm-tektin was observed in the testes of spermidine fed groups. Thus, the study suggests that foliar feeding of spermidine can be used to overcome the limitation of reproductive potential in sex-limited breeds.","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"27 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140498543","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}
M. Pramudi, Samharinto, H. O. Rosa, Salamiah, L. Aphrodyanti
Species abundance and diversity of predatory arthropods are important information for developing biological pest control strategies. A study that aims to determine the abundance of predators (Coccinellidae and Araneae) in peatlands planted with shallots in Tegal Arum Village, Landasan Ulin District, Banjarbaru City, South Borneo has been carried out. The method used is purposive sampling method. Selecting plots with uniform growth and plant height of shallots in one plot or beds measuring 3 x 20 m and six plots were observed using three methods: direct sampling, swing nets, and pitfall traps. Observations on species abundance of spiders and predatory coccinellids were carried out to describe the number of species and the abundance of insects in shallot cultivation on peatlands. Predators from the order Coleoptera of the Coccinellidae family observed belong to (Menochilus sexmaculatus, Micrapsis sp, Coccinella novemnotata and Scymnus sp. with 143 individuals and the highest population was found by Micrapsis sp (128 individuals). Meanwhile, there were 6 species of spiders (Araneae) from 5 different families (Oxyopidae, Tetragnatidae, Lyniphiidae, Thomisidae, and Lycosidae) with the most individuals being Oxyopes variabilis (Araneidae: Oxyopidae). The distribution index of species diversity (E) shows E> 0.6, indicating that the evenness of species on the land is uneven
{"title":"Overview of Predators in Shallots Plantation in Peatland, Landasan Ulin South Borneo","authors":"M. Pramudi, Samharinto, H. O. Rosa, Salamiah, L. Aphrodyanti","doi":"10.55446/ije.2024.1598","DOIUrl":"https://doi.org/10.55446/ije.2024.1598","url":null,"abstract":"Species abundance and diversity of predatory arthropods are important information for developing biological pest control strategies. A study that aims to determine the abundance of predators (Coccinellidae and Araneae) in peatlands planted with shallots in Tegal Arum Village, Landasan Ulin District, Banjarbaru City, South Borneo has been carried out. The method used is purposive sampling method. Selecting plots with uniform growth and plant height of shallots in one plot or beds measuring 3 x 20 m and six plots were observed using three methods: direct sampling, swing nets, and pitfall traps. Observations on species abundance of spiders and predatory coccinellids were carried out to describe the number of species and the abundance of insects in shallot cultivation on peatlands. Predators from the order Coleoptera of the Coccinellidae family observed belong to (Menochilus sexmaculatus, Micrapsis sp, Coccinella novemnotata and Scymnus sp. with 143 individuals and the highest population was found by Micrapsis sp (128 individuals). Meanwhile, there were 6 species of spiders (Araneae) from 5 different families (Oxyopidae, Tetragnatidae, Lyniphiidae, Thomisidae, and Lycosidae) with the most individuals being Oxyopes variabilis (Araneidae: Oxyopidae). The distribution index of species diversity (E) shows E> 0.6, indicating that the evenness of species on the land is uneven","PeriodicalId":13463,"journal":{"name":"Indian journal of entomology","volume":"20 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140498939","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}
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.
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