Fall armyworm(FAW),Spodoptera frugiperda(J.E.Smith),has become an important pest in Chinese agricultural systems since its invasion on 11 December 2018.After its establishment,FAW months in the year-round breeding reg...Fall armyworm(FAW),Spodoptera frugiperda(J.E.Smith),has become an important pest in Chinese agricultural systems since its invasion on 11 December 2018.After its establishment,FAW months in the year-round breeding region have become the main source population migrating to other areas in China.Field investigations were conducted in tropical and subtropical regions to improve understanding of its year-round breeding area in China.The results showed that FAW larval density was significantly correlated with the seasonal temperature of the location surveyed.The FAW larvae maintained a high density in the tropical area and were frequently found in sites of the south subtropical region,but were absent from the north subtropical region and the northern part of the central subtropical region.These results indicated that FAW can reproduce annually in the tropical and south subtropical regions of China,including Hainan,Taiwan and the southern area of Fujian,Guangdong,Guangxi,Guizhou,and Yunnan.Hence,great effort should be made to monitor and control FAW in the year-round breeding region to suppress the population density of this area and to reduce migration of moths into northern parts of China.This study clarifies the occurrence area of the pest in winter in China and provides much valuable information for its population forecasting and management.展开更多
The fall armyworm(FAW),Spodoptera frugiperda(J.E.Smith),is native to the Americas.It has rapidly invaded 47 African countries and 18 Asian countries since the first detection of invasion into Nigeria and Ghana in 2016...The fall armyworm(FAW),Spodoptera frugiperda(J.E.Smith),is native to the Americas.It has rapidly invaded 47 African countries and 18 Asian countries since the first detection of invasion into Nigeria and Ghana in 2016.It is regarded as a super pest based on its host range(at least 353 host plants),its inherent ability to survive in a wide range of habitats,its strong migration ability,high fecundity,rapid development of resistance to insecticides/viruses and its gluttonous characteristics.The inherently superior biological characteristics of FAW contribute to its invasiveness.Integrated pest management(IPM)of FAW has relied on multiple applications of monitoring and scouting,agricultural control,chemical pesticides,viral insecticides,sex attractants,bio-control agents(parasitoids,predators and entomopathogens)and botanicals.Knowledge gaps remain to be filled to:(1)understand the invasive mechanisms of S.frugiperda;(2)understand how to prevent its further spread and(3)provide better management strategies.This review summarizes the biological characters of FAW,their association with its invasiveness and IPM strategies,which may provide further insights for future management.展开更多
The fall armyworm(FAW)Spodoptera frugiperda,which originated in the Americas,is advancing across China and threatening the nation’s maize crops.Currently,one widely used tool for its control is genetically modified(G...The fall armyworm(FAW)Spodoptera frugiperda,which originated in the Americas,is advancing across China and threatening the nation’s maize crops.Currently,one widely used tool for its control is genetically modified(GM)Bacillus thuringiensis(Bt)maize.Sufficient content of Bt protein in appropriate plant parts is crucial for enhancing resistance against insect pests.In this study,we conducted a systematic investigation of Cry1 Ab levels in Chinese domestic GM maize DBN9936,which has recently obtained a biosafety certificate,and evaluated its efficacy against FAW.Quantification of expression levels of Cry1 Ab,via ELISA,indicated a spatio-temporal dynamic,with significant variation of mean Cry1 Ab,ranging from 0.76 to 8.48μg g-1 FW with the Cry1 Ab protein level ranked as:V6-V8 leaf>R1 leaf>R4 leaf>R1 silk>VT tassel>R4 kernel.Among the nine locations,the Cry1 Ab levels in DBN9936 of the Xinxiang,Langfang,and Harbin fields were significantly lower than those from Wuhan and Shenyang,and were slightly,but not significantly lower than those from the other four fields.Furthermore,the artificial diet-Cry1 Ab mixture and plant tissue feeding bioassays revealed that DBN9936 has high efficacy against FAW.The insecticidal efficacy of different tissues against FAW larvae reached 34-100%with a descending order of lethality as follows:VT leaf>R4 leaf>R1 husk>R1 silk>VT tassel>R4 kernel.Taken together,our results showed that Bt-Cry1 Ab maize DBN9936 has potential as a promising strategy to manage FAW.展开更多
Maize is one of the cereals most consumed by households in Niger. Its production remains marginal despite the efforts made in hydro-agricultural development both around the Niger River and in the interior of the count...Maize is one of the cereals most consumed by households in Niger. Its production remains marginal despite the efforts made in hydro-agricultural development both around the Niger River and in the interior of the country. The detection of the fall armyworm (Spodoptera frugiperda J.E. Smith) in 2016 in Niger, followed by its rapid spread where in less than a year it has spread over almost the entire national territory is not without consequence on the yields of the but already very low in the main production areas. As a result, maize production is increasingly being abandoned in the southern agricultural zone of Niger. In fact, this caterpillar has become a major pest of maize because of the significant damage observed on this crop during its growth and development cycle. This situation calls for research to be conducted to help maize producers better manage this pest. The objective of this study is to assess the level of knowledge and management of FAW by maize farmers in the southern agricultural zone of Niger. A survey was conducted in July and August 2020 on a sample of 408 farmers in this zone using an individual questionnaire designed and integrated into the ODK data collection software. The results obtained showed that 93% of the producers recognize FAW through its morphology and the aspects of its damage;53.25% estimate that the attack rate is very high and 60.75% of the producers use pesticides in the management of this pest against only 1.5% who use biopesticides. These results clearly indicate the severity of FAW attacks on corn and the massive use of pesticides by producers.展开更多
The fall armyworm,Spodoptera frugiperda(J.E.Smith),is a major target pest of Bt crops(e.g.,corn,cotton,and soybean)in North and South America.This pest has recently invaded Africa and Asia including China and the inva...The fall armyworm,Spodoptera frugiperda(J.E.Smith),is a major target pest of Bt crops(e.g.,corn,cotton,and soybean)in North and South America.This pest has recently invaded Africa and Asia including China and the invasion has placed a great threat to the food security in many countries of these two continents.Due to the extensive use of Bt crops,practical resistance of S.frugiperda to Cry IF corn(TC 1507)with field control problems has widely occurred in Puerto Rico,Brazil,Argentina,and the mainland United States.Analyzing data generated from decade-long studies showed that several factors might have contributed to the wide development of the resistance.These factors include(1)limited modes of action of Bt proteins used in Bt crops;(2)cross-resistance among Cryl proteins;(3)use of nonhigh dose Bt crop traits;(4)that the resistance is complete on Bt corn plants;(5)abundant in initial Cry IF resistance alleles;and(6)lack of fitness costs/recessive fitness costs of the resistance.The long-term use of Bt crop technology in the Americas suggests that Bt corn can be an effective tool for controlling S.frugiperda in China.IRM programs for Bt corn in China should be as simple as possible to be easily adopted by small-scale growers.The following aspects may be considered in its Bt corn IRM programs:(1)use of only"high dose^traits for both S.frugiperda and stalk borers;(2)developing and implementing a combined resistance monitoring program;(3)use“gene pyramiding”as a primary IRM strategy;and(4)if possible,Bt corn may not be planted in the areas where S.frugiperda overwinters.Lessons and experience gained from the global long-term use of Bt crops should have values in improving IRM programs in the Americas,as well as for a sustainable use of Bt corn technology in China.展开更多
The fall armyworm Spodoptera frugiperda,an invasive insect pest native to the Americas,has established populations throughout eastern China.The North China Plain一a key corn-producing area in East China with a unique ...The fall armyworm Spodoptera frugiperda,an invasive insect pest native to the Americas,has established populations throughout eastern China.The North China Plain一a key corn-producing area in East China with a unique topography一was invaded by fall armyworm in 2019 and is seriously threatened by this migratory pest.However,the spatiotemporal extent of the migratory movements of fall armyworm from the North China Plain remains poorly understood.Using an air transport-based trajectory modeling approach that incorporates flight behavior,we simulated the potential nocturnal migration trajectories of fall armyworm from the North China Plain based on historical meteorological data from June to October of 2015-2019,and examined the night-time atmospheric conditions associated with their possible flights.The emigration patterns showed monthly variation in the main landing area and common migration direction.The displacement of newly emerged moths from the North China Plain was concentrated in the Northeast China Plain(including Liaoning,Jilin and Heilongjiang provinces)before late summer,after which they were most likely to undertake return flights to the south(especially into Hubei,Anhui and Hunan provinces).This southwest-northeast aerial migration corridor follows the topography of East China and is affected by the East Asian monsoon.These topographic-atmospheric conditions have resulted in the North China Plain becoming a key stopover for fall armyworm populations engaging in multigenerational long-distance migration across East China.These findings contribute to our knowledge of fall army-worm migration and will aid in the implementation of management and control strategies against this highly migratory agricultural pest.展开更多
The use of artificial diets to mass reared insect stock under laboratory conditions, promotes knowledge about the biology, behavior, and nutritional requirements of insects;with such information being fundamental for ...The use of artificial diets to mass reared insect stock under laboratory conditions, promotes knowledge about the biology, behavior, and nutritional requirements of insects;with such information being fundamental for the formulation of efficient integrated pest management programs (IPM) strategies. However, the artificial diets used for rearing Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) in the laboratory in this study, do not contain wheat germ, used for routine laboratory rearing. The aim of this study was to compare food preference and consumption by S. frugiperda larvae, as well as evaluate insect developmental parameters in the standard diet and the bean-based diets under laboratory conditions. Four artificial diets were used: a standard diet based on broad beans (Phaseolus vulgaris L.) used to rear S. frugiperda (D1), a diet with the substitution of two types of beans, cowpea (Vigna unguiculata L.) (D2) and pigeon pea (Cajanus cajan L) (D3);and a diet of fresh corn leaves (D4), the host plant of the pest species. Using a multiple-choice test, we observed that the larvae preferred diets D4 followed by D1. The relative consumption rate (RCR), relative growth rate (RGR), relative metabolic rate (RMR), approximate digestibility (AD), efficiency of conversion of ingested food (ECI), efficiency of conversion of digested food (ECD), and the metabolic cost (CM) for S. frugiperda fifth instar larvae varied among diets. The diet D4 resulted in better ingestion, digestion, assimilation, and conversion of food, but with a metabolic cost to assimilate the food. The different bean varieties present in the diet influenced larval length, larval periods, larval survival, pupal periods, sex ratio, pupal weight, and pupal survival;but fecundity and longevity of adults were not affected. The different bean-based diets did positively influence population growth, with the most outstanding being D4. From the results of this study, the most adequate diet for rearing S. frugiperda in the laboratory is D4.展开更多
草地贪夜蛾Spodoptera frugiperda(J. E. Smith)是原分布于美洲大陆热带和亚热带地区的一种重要玉米害虫。在当地,种植抗虫转基因玉米是防控草地贪夜蛾危害的主要手段。该虫于2019年1月入侵我国云南省,为明确入侵我国云南的草地贪夜蛾...草地贪夜蛾Spodoptera frugiperda(J. E. Smith)是原分布于美洲大陆热带和亚热带地区的一种重要玉米害虫。在当地,种植抗虫转基因玉米是防控草地贪夜蛾危害的主要手段。该虫于2019年1月入侵我国云南省,为明确入侵我国云南的草地贪夜蛾种群对常用Bt蛋白的敏感性水平,本文通过饲料表面涂抹法测定了瑞丽草地贪夜蛾幼虫对Cry1Ab、Cry1Ac、Cry1F、Cry2Ab以及Vip3A等5种Bt蛋白的敏感性。结果表明:几种常用Bt蛋白对瑞丽草地贪夜蛾致死作用顺序为Vip3A>Cry1Ab>Cry1F>Cry2Ab>Cry1Ac,对草地贪夜蛾抑制生长发育的顺序为Cry1Ab>Cry1F>Vip3A>Cry1Ac>Cry2Ab。此外,与美国相对敏感种群比较,云南瑞丽草地贪夜蛾种群对Cry1Ab、Cry1Ac、Cry1F、Cry2Ab和Vip3A的敏感性指标在0.28~3.76之间,表明该入侵种群对此5种Bt蛋白均未产生抗性。此研究可为将来建立以转Bt基因玉米作为防控草地贪夜蛾的技术体系提供依据。展开更多
为了深入了解草地贪夜蛾在全球范围的研究动态和趋势,本文利用文献计量学方法,以知网、万方、维普、Web of Science和CAB文摘数据库为数据源,对1910-2019年在国内外发表的5 030篇草地贪夜蛾文献进行了统计分析。结果表明:国内外关于草...为了深入了解草地贪夜蛾在全球范围的研究动态和趋势,本文利用文献计量学方法,以知网、万方、维普、Web of Science和CAB文摘数据库为数据源,对1910-2019年在国内外发表的5 030篇草地贪夜蛾文献进行了统计分析。结果表明:国内外关于草地贪夜蛾的文献数量随着时间的推移呈现整体上升趋势,20世纪90年代以来出现井喷式增长。学术期刊论文占总发文量的89.2%,Journal of Economic Entomology和《植物保护》分别是发文量最多的外文和中文期刊。在外文发文量方面,美国、巴西和墨西哥等国家的研究机构和学者名列前茅;在中文发文量方面,中国农业科学院植物保护研究所、全国农业技术推广服务中心和北京农学院位列前三。草地贪夜蛾的研究热点与其可持续防控高度相关,尤其侧重生物防治和IPM方面的研究。展开更多
基金supported by the National Key R&D Program of China(2017YFB0403905)the Central Publicinterest Scientific Institution Basal Research Fund,China(CAAS-ZDRW202007)the earmarked fund for China Agriculture Research System(CARS-15-19).
文摘Fall armyworm(FAW),Spodoptera frugiperda(J.E.Smith),has become an important pest in Chinese agricultural systems since its invasion on 11 December 2018.After its establishment,FAW months in the year-round breeding region have become the main source population migrating to other areas in China.Field investigations were conducted in tropical and subtropical regions to improve understanding of its year-round breeding area in China.The results showed that FAW larval density was significantly correlated with the seasonal temperature of the location surveyed.The FAW larvae maintained a high density in the tropical area and were frequently found in sites of the south subtropical region,but were absent from the north subtropical region and the northern part of the central subtropical region.These results indicated that FAW can reproduce annually in the tropical and south subtropical regions of China,including Hainan,Taiwan and the southern area of Fujian,Guangdong,Guangxi,Guizhou,and Yunnan.Hence,great effort should be made to monitor and control FAW in the year-round breeding region to suppress the population density of this area and to reduce migration of moths into northern parts of China.This study clarifies the occurrence area of the pest in winter in China and provides much valuable information for its population forecasting and management.
基金supported by the Australia-China Joint Center for the PreventionManagement of Exotic Invasive Species,the Harry Butler Institute,Murdoch University,WA,Australiathe Shenzhen Science and Technology Program,China(KQTD20180411143628272)。
文摘The fall armyworm(FAW),Spodoptera frugiperda(J.E.Smith),is native to the Americas.It has rapidly invaded 47 African countries and 18 Asian countries since the first detection of invasion into Nigeria and Ghana in 2016.It is regarded as a super pest based on its host range(at least 353 host plants),its inherent ability to survive in a wide range of habitats,its strong migration ability,high fecundity,rapid development of resistance to insecticides/viruses and its gluttonous characteristics.The inherently superior biological characteristics of FAW contribute to its invasiveness.Integrated pest management(IPM)of FAW has relied on multiple applications of monitoring and scouting,agricultural control,chemical pesticides,viral insecticides,sex attractants,bio-control agents(parasitoids,predators and entomopathogens)and botanicals.Knowledge gaps remain to be filled to:(1)understand the invasive mechanisms of S.frugiperda;(2)understand how to prevent its further spread and(3)provide better management strategies.This review summarizes the biological characters of FAW,their association with its invasiveness and IPM strategies,which may provide further insights for future management.
基金funded by the National Genetically Modified Organism New Variety Breeding Program of China(2019ZX08012-004)。
文摘The fall armyworm(FAW)Spodoptera frugiperda,which originated in the Americas,is advancing across China and threatening the nation’s maize crops.Currently,one widely used tool for its control is genetically modified(GM)Bacillus thuringiensis(Bt)maize.Sufficient content of Bt protein in appropriate plant parts is crucial for enhancing resistance against insect pests.In this study,we conducted a systematic investigation of Cry1 Ab levels in Chinese domestic GM maize DBN9936,which has recently obtained a biosafety certificate,and evaluated its efficacy against FAW.Quantification of expression levels of Cry1 Ab,via ELISA,indicated a spatio-temporal dynamic,with significant variation of mean Cry1 Ab,ranging from 0.76 to 8.48μg g-1 FW with the Cry1 Ab protein level ranked as:V6-V8 leaf>R1 leaf>R4 leaf>R1 silk>VT tassel>R4 kernel.Among the nine locations,the Cry1 Ab levels in DBN9936 of the Xinxiang,Langfang,and Harbin fields were significantly lower than those from Wuhan and Shenyang,and were slightly,but not significantly lower than those from the other four fields.Furthermore,the artificial diet-Cry1 Ab mixture and plant tissue feeding bioassays revealed that DBN9936 has high efficacy against FAW.The insecticidal efficacy of different tissues against FAW larvae reached 34-100%with a descending order of lethality as follows:VT leaf>R4 leaf>R1 husk>R1 silk>VT tassel>R4 kernel.Taken together,our results showed that Bt-Cry1 Ab maize DBN9936 has potential as a promising strategy to manage FAW.
文摘Maize is one of the cereals most consumed by households in Niger. Its production remains marginal despite the efforts made in hydro-agricultural development both around the Niger River and in the interior of the country. The detection of the fall armyworm (Spodoptera frugiperda J.E. Smith) in 2016 in Niger, followed by its rapid spread where in less than a year it has spread over almost the entire national territory is not without consequence on the yields of the but already very low in the main production areas. As a result, maize production is increasingly being abandoned in the southern agricultural zone of Niger. In fact, this caterpillar has become a major pest of maize because of the significant damage observed on this crop during its growth and development cycle. This situation calls for research to be conducted to help maize producers better manage this pest. The objective of this study is to assess the level of knowledge and management of FAW by maize farmers in the southern agricultural zone of Niger. A survey was conducted in July and August 2020 on a sample of 408 farmers in this zone using an individual questionnaire designed and integrated into the ODK data collection software. The results obtained showed that 93% of the producers recognize FAW through its morphology and the aspects of its damage;53.25% estimate that the attack rate is very high and 60.75% of the producers use pesticides in the management of this pest against only 1.5% who use biopesticides. These results clearly indicate the severity of FAW attacks on corn and the massive use of pesticides by producers.
基金the Associate Vice President&Program Leader of the Louisiana State University Agricultural Center as Manuscript Number:2020-234-34549This study was sponsored by Hatch funds from the USDA National Institute of Food and Agriculture,and the USDA Multistate Research Project NC-246.
文摘The fall armyworm,Spodoptera frugiperda(J.E.Smith),is a major target pest of Bt crops(e.g.,corn,cotton,and soybean)in North and South America.This pest has recently invaded Africa and Asia including China and the invasion has placed a great threat to the food security in many countries of these two continents.Due to the extensive use of Bt crops,practical resistance of S.frugiperda to Cry IF corn(TC 1507)with field control problems has widely occurred in Puerto Rico,Brazil,Argentina,and the mainland United States.Analyzing data generated from decade-long studies showed that several factors might have contributed to the wide development of the resistance.These factors include(1)limited modes of action of Bt proteins used in Bt crops;(2)cross-resistance among Cryl proteins;(3)use of nonhigh dose Bt crop traits;(4)that the resistance is complete on Bt corn plants;(5)abundant in initial Cry IF resistance alleles;and(6)lack of fitness costs/recessive fitness costs of the resistance.The long-term use of Bt crop technology in the Americas suggests that Bt corn can be an effective tool for controlling S.frugiperda in China.IRM programs for Bt corn in China should be as simple as possible to be easily adopted by small-scale growers.The following aspects may be considered in its Bt corn IRM programs:(1)use of only"high dose^traits for both S.frugiperda and stalk borers;(2)developing and implementing a combined resistance monitoring program;(3)use“gene pyramiding”as a primary IRM strategy;and(4)if possible,Bt corn may not be planted in the areas where S.frugiperda overwinters.Lessons and experience gained from the global long-term use of Bt crops should have values in improving IRM programs in the Americas,as well as for a sustainable use of Bt corn technology in China.
基金the National Natural Science Foundation of China(31901873 and 31727901)the China Postdoctoral Science Foundation(2019M660896)+1 种基金the Central Public-interest Scientific Institution Basal Research Fund,China(CAAS-ZDRW202007,Y2019YJ06)the National Key R&D Program of China(2019YFD0300105).
文摘The fall armyworm Spodoptera frugiperda,an invasive insect pest native to the Americas,has established populations throughout eastern China.The North China Plain一a key corn-producing area in East China with a unique topography一was invaded by fall armyworm in 2019 and is seriously threatened by this migratory pest.However,the spatiotemporal extent of the migratory movements of fall armyworm from the North China Plain remains poorly understood.Using an air transport-based trajectory modeling approach that incorporates flight behavior,we simulated the potential nocturnal migration trajectories of fall armyworm from the North China Plain based on historical meteorological data from June to October of 2015-2019,and examined the night-time atmospheric conditions associated with their possible flights.The emigration patterns showed monthly variation in the main landing area and common migration direction.The displacement of newly emerged moths from the North China Plain was concentrated in the Northeast China Plain(including Liaoning,Jilin and Heilongjiang provinces)before late summer,after which they were most likely to undertake return flights to the south(especially into Hubei,Anhui and Hunan provinces).This southwest-northeast aerial migration corridor follows the topography of East China and is affected by the East Asian monsoon.These topographic-atmospheric conditions have resulted in the North China Plain becoming a key stopover for fall armyworm populations engaging in multigenerational long-distance migration across East China.These findings contribute to our knowledge of fall army-worm migration and will aid in the implementation of management and control strategies against this highly migratory agricultural pest.
文摘The use of artificial diets to mass reared insect stock under laboratory conditions, promotes knowledge about the biology, behavior, and nutritional requirements of insects;with such information being fundamental for the formulation of efficient integrated pest management programs (IPM) strategies. However, the artificial diets used for rearing Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae) in the laboratory in this study, do not contain wheat germ, used for routine laboratory rearing. The aim of this study was to compare food preference and consumption by S. frugiperda larvae, as well as evaluate insect developmental parameters in the standard diet and the bean-based diets under laboratory conditions. Four artificial diets were used: a standard diet based on broad beans (Phaseolus vulgaris L.) used to rear S. frugiperda (D1), a diet with the substitution of two types of beans, cowpea (Vigna unguiculata L.) (D2) and pigeon pea (Cajanus cajan L) (D3);and a diet of fresh corn leaves (D4), the host plant of the pest species. Using a multiple-choice test, we observed that the larvae preferred diets D4 followed by D1. The relative consumption rate (RCR), relative growth rate (RGR), relative metabolic rate (RMR), approximate digestibility (AD), efficiency of conversion of ingested food (ECI), efficiency of conversion of digested food (ECD), and the metabolic cost (CM) for S. frugiperda fifth instar larvae varied among diets. The diet D4 resulted in better ingestion, digestion, assimilation, and conversion of food, but with a metabolic cost to assimilate the food. The different bean varieties present in the diet influenced larval length, larval periods, larval survival, pupal periods, sex ratio, pupal weight, and pupal survival;but fecundity and longevity of adults were not affected. The different bean-based diets did positively influence population growth, with the most outstanding being D4. From the results of this study, the most adequate diet for rearing S. frugiperda in the laboratory is D4.
文摘草地贪夜蛾Spodoptera frugiperda(J. E. Smith)是原分布于美洲大陆热带和亚热带地区的一种重要玉米害虫。在当地,种植抗虫转基因玉米是防控草地贪夜蛾危害的主要手段。该虫于2019年1月入侵我国云南省,为明确入侵我国云南的草地贪夜蛾种群对常用Bt蛋白的敏感性水平,本文通过饲料表面涂抹法测定了瑞丽草地贪夜蛾幼虫对Cry1Ab、Cry1Ac、Cry1F、Cry2Ab以及Vip3A等5种Bt蛋白的敏感性。结果表明:几种常用Bt蛋白对瑞丽草地贪夜蛾致死作用顺序为Vip3A>Cry1Ab>Cry1F>Cry2Ab>Cry1Ac,对草地贪夜蛾抑制生长发育的顺序为Cry1Ab>Cry1F>Vip3A>Cry1Ac>Cry2Ab。此外,与美国相对敏感种群比较,云南瑞丽草地贪夜蛾种群对Cry1Ab、Cry1Ac、Cry1F、Cry2Ab和Vip3A的敏感性指标在0.28~3.76之间,表明该入侵种群对此5种Bt蛋白均未产生抗性。此研究可为将来建立以转Bt基因玉米作为防控草地贪夜蛾的技术体系提供依据。
文摘为了深入了解草地贪夜蛾在全球范围的研究动态和趋势,本文利用文献计量学方法,以知网、万方、维普、Web of Science和CAB文摘数据库为数据源,对1910-2019年在国内外发表的5 030篇草地贪夜蛾文献进行了统计分析。结果表明:国内外关于草地贪夜蛾的文献数量随着时间的推移呈现整体上升趋势,20世纪90年代以来出现井喷式增长。学术期刊论文占总发文量的89.2%,Journal of Economic Entomology和《植物保护》分别是发文量最多的外文和中文期刊。在外文发文量方面,美国、巴西和墨西哥等国家的研究机构和学者名列前茅;在中文发文量方面,中国农业科学院植物保护研究所、全国农业技术推广服务中心和北京农学院位列前三。草地贪夜蛾的研究热点与其可持续防控高度相关,尤其侧重生物防治和IPM方面的研究。