Rice leaffolder,Cnaphalocrocis medinalis(Guenée),has become a major pest throughout the rice cultivating areas of China and caused severe damage to rice production.Cnaphalocrocis medinalis granulovirus(CnmeGV),a ...Rice leaffolder,Cnaphalocrocis medinalis(Guenée),has become a major pest throughout the rice cultivating areas of China and caused severe damage to rice production.Cnaphalocrocis medinalis granulovirus(CnmeGV),a naturally occurring baculovirus,is revealed as a potential microbial agent for the pest control.Field applications of CnmeGV were conducted against rice leaffolder larvae in rice paddies.CnmeGV infected the larvae not only in the current generation but also in the successive generation,resulting in a sustained infection in the larva population for at least 48 days.Under diferent concentrations of CnmeGV(7.5×1011 and 1.125×1012 occlusion body(OB)ha-1)at 30 days after spraying,larval population reduced up to 76.32%and rice leaf rolled rate kept in 15.42%.Simultaneously,CnmeGV had no impact on arthropod predators of C.medinalis,with abundances ranging from 2.39 to 3.79 per ten hills.These results revealed that CnmeGV is suitable as a bio-pesticide for rice leaffolder management in rice paddies.展开更多
The growth and reproduction of rice leaffolder,Cnaphalocrocis medinalis,fed on an artificial diet were studied.The results showed that the larvae were able to grow and pupate on the artificial diet.The durations of la...The growth and reproduction of rice leaffolder,Cnaphalocrocis medinalis,fed on an artificial diet were studied.The results showed that the larvae were able to grow and pupate on the artificial diet.The durations of larvae and pupas of C.medinalis on the artificial diet were 28.1 d and 10.1 d,postponed 4.9 d and 1.7 d respectively,compared with those reared with rice leaves.The number of ovipositions was 41.6 per female,26.2% higher than that fed on rice leaves.Survival rate curve of larvae was a descent function of mortality-age,with no significant differences from the curve of larvae fed on rice leaves.The net reproductive rate （Ro）,intrinsic rate of increase （rm） and finite rate of increase （λ） of the population fed on diet were 17.6928,0.0884 and 1.0924,respectively,and the mean generation time （T） and double time （td） were prolonged 4.9 d and 1.3 d in comparison with the treatment of rice leaves.Population trend index （I） was 3.26,indicating a growing number of the population of C.medinalis fed on artificial diet.展开更多
Cnaphalocrocis medinalis is a key lepidopteran pest of rice. However, little is known about the nutritional requirements of the adult or the effects of adult-derived nutrients on reproduction. The aim of the present s...Cnaphalocrocis medinalis is a key lepidopteran pest of rice. However, little is known about the nutritional requirements of the adult or the effects of adult-derived nutrients on reproduction. The aim of the present study was to evaluate the effects of carbohydrates and amino acids on the reproductive and demographic parameters of C. medinalis. Different feeding solutions significantly influenced adult survival and reproduction. All the sources of carbohydrates used in the treatments(fructose, glucose, and sucrose) were sufficient to increase adult longevity and fecundity, and benefited the development of ovaries in the adult stage. The positive impact of carbohydrates on lifetime fecundity was due to the prolonged oviposition period and the increased daily fecundity. The intrinsic rate of increase(rm) of C. medinalis increased from 0.103 in waterfed individuals to approximately 0.138 when adults were fed with solutions containing carbohydrates. In contrast, amino acid intake by adult insects exhibited no effect on the longevity, fecundity, ovarian development or population growth, even showing an impact of decreasing longevity of females. As nectar secreted by the flowering plant is generally rich in sugars, the potential effects of nectar on the adults of C. medinalis and other pests have to be considered during the development of biological control by applying flowering plants as a microhabitat and food source for natural enemies in rice fields.展开更多
目的观察穴位注射配合药物治疗带状疱疹后遗神经痛的临床疗效。方法将64例带状疱疹后遗神经痛患者随机分为治疗组和对照组,每组32例。治疗组采用夹脊穴注射丹参注射液配合口服加巴喷丁片治疗,对照组采用单纯口服加巴喷丁片治疗。两组如...目的观察穴位注射配合药物治疗带状疱疹后遗神经痛的临床疗效。方法将64例带状疱疹后遗神经痛患者随机分为治疗组和对照组,每组32例。治疗组采用夹脊穴注射丹参注射液配合口服加巴喷丁片治疗,对照组采用单纯口服加巴喷丁片治疗。两组如疼痛严重可加服盐酸曲马多缓释片治疗。观察两组治疗前后视觉模拟评分法(visual analogue scale, VAS)评分、SF-36健康量表(the MOS 36-item short-form health survey,SF-36)各项评分的变化情况,并比较两组不同时间点服用加巴喷丁片和盐酸曲马多缓释片的剂量及各项不良反应的发生率。结果两组治疗后不同时间点(治疗1周、3周、6周、12周、24周后)VAS评分与同组治疗前比较,差异均有统计学意义(P<0.01)。治疗组治疗后不同时间点VAS评分与对照组比较,差异具有统计学意义(P<0.01)。两组治疗3周、6周、12周、24周后加巴喷丁片和盐酸曲马多缓释片的服用剂量比较,差异均具有统计学意义(P<0.05)。两组治疗12周、24周后SF-36各项评分(PF、RP、BP、GH、VT、SF、RE、MH)与同组治疗前比较,差异均具有统计学意义(P<0.05)。治疗组治疗12周、24周后SF-36中PF、RP、BP、VT、MH评分与对照组比较,差异均具有统计学意义(P<0.05)。治疗组治疗后头晕、嗜睡、恶心的发生率分别为6.7%、3.3%和3.3%,对照组分别为24.1%、17.2%和20.7%,两组比较差异均具有统计学意义(P<0.05)。结论穴位注射配合药物是一种治疗带状疱疹后遗神经痛的有效方法,能减少服用加巴喷丁片的剂量,从而减少不良反应。展开更多
基金supported by the National Natural Science Foundation of China (31071740 and 31701792)the Jiangsu Science Foundation of China (BK20181283)the Jiangsu Agricultural Science and Technology Innovation Fund, China (ZX(17)2002)
文摘Rice leaffolder,Cnaphalocrocis medinalis(Guenée),has become a major pest throughout the rice cultivating areas of China and caused severe damage to rice production.Cnaphalocrocis medinalis granulovirus(CnmeGV),a naturally occurring baculovirus,is revealed as a potential microbial agent for the pest control.Field applications of CnmeGV were conducted against rice leaffolder larvae in rice paddies.CnmeGV infected the larvae not only in the current generation but also in the successive generation,resulting in a sustained infection in the larva population for at least 48 days.Under diferent concentrations of CnmeGV(7.5×1011 and 1.125×1012 occlusion body(OB)ha-1)at 30 days after spraying,larval population reduced up to 76.32%and rice leaf rolled rate kept in 15.42%.Simultaneously,CnmeGV had no impact on arthropod predators of C.medinalis,with abundances ranging from 2.39 to 3.79 per ten hills.These results revealed that CnmeGV is suitable as a bio-pesticide for rice leaffolder management in rice paddies.
基金supported by the National Key Programs for Transgenic Crops(Grant No.2008ZX08001-001)Special Fund for Agro-scientific Research in the Public Interest(Grant No.200903051)+4 种基金the National Natural Science Foundation of China(Grant No.31071740)the Natural Science Foundation of Jiangsu Province,China(Grant No.BK2010295)Jiangsu Province Agricultural Science&Technology Support Program(Grant No.BE2011358)Jiangsu Province Independent Innovation of Agricultural Science(Grant No.CX(11)4002)Yangzhou Agricultural Science and Technology Research Projects(Grant No.YZ2010051)
文摘The growth and reproduction of rice leaffolder,Cnaphalocrocis medinalis,fed on an artificial diet were studied.The results showed that the larvae were able to grow and pupate on the artificial diet.The durations of larvae and pupas of C.medinalis on the artificial diet were 28.1 d and 10.1 d,postponed 4.9 d and 1.7 d respectively,compared with those reared with rice leaves.The number of ovipositions was 41.6 per female,26.2% higher than that fed on rice leaves.Survival rate curve of larvae was a descent function of mortality-age,with no significant differences from the curve of larvae fed on rice leaves.The net reproductive rate （Ro）,intrinsic rate of increase （rm） and finite rate of increase （λ） of the population fed on diet were 17.6928,0.0884 and 1.0924,respectively,and the mean generation time （T） and double time （td） were prolonged 4.9 d and 1.3 d in comparison with the treatment of rice leaves.Population trend index （I） was 3.26,indicating a growing number of the population of C.medinalis fed on artificial diet.
基金supported by the Natural Science Foundation of Jiangsu Province, China (BK20191216)the Jiangsu Agricultural Science and Technology Innovation Fund (ZX(17)2002)+1 种基金the International Cooperation and Exchanges Projects of Jiangsu Province (BZ2020039)the Opening Fund of Jiangsu Key Laboratory for Food Quality and SafetyState Key Laboratory Cultivation Base (028074911709)。
文摘Cnaphalocrocis medinalis is a key lepidopteran pest of rice. However, little is known about the nutritional requirements of the adult or the effects of adult-derived nutrients on reproduction. The aim of the present study was to evaluate the effects of carbohydrates and amino acids on the reproductive and demographic parameters of C. medinalis. Different feeding solutions significantly influenced adult survival and reproduction. All the sources of carbohydrates used in the treatments(fructose, glucose, and sucrose) were sufficient to increase adult longevity and fecundity, and benefited the development of ovaries in the adult stage. The positive impact of carbohydrates on lifetime fecundity was due to the prolonged oviposition period and the increased daily fecundity. The intrinsic rate of increase(rm) of C. medinalis increased from 0.103 in waterfed individuals to approximately 0.138 when adults were fed with solutions containing carbohydrates. In contrast, amino acid intake by adult insects exhibited no effect on the longevity, fecundity, ovarian development or population growth, even showing an impact of decreasing longevity of females. As nectar secreted by the flowering plant is generally rich in sugars, the potential effects of nectar on the adults of C. medinalis and other pests have to be considered during the development of biological control by applying flowering plants as a microhabitat and food source for natural enemies in rice fields.
文摘目的观察穴位注射配合药物治疗带状疱疹后遗神经痛的临床疗效。方法将64例带状疱疹后遗神经痛患者随机分为治疗组和对照组,每组32例。治疗组采用夹脊穴注射丹参注射液配合口服加巴喷丁片治疗,对照组采用单纯口服加巴喷丁片治疗。两组如疼痛严重可加服盐酸曲马多缓释片治疗。观察两组治疗前后视觉模拟评分法(visual analogue scale, VAS)评分、SF-36健康量表(the MOS 36-item short-form health survey,SF-36)各项评分的变化情况,并比较两组不同时间点服用加巴喷丁片和盐酸曲马多缓释片的剂量及各项不良反应的发生率。结果两组治疗后不同时间点(治疗1周、3周、6周、12周、24周后)VAS评分与同组治疗前比较,差异均有统计学意义(P<0.01)。治疗组治疗后不同时间点VAS评分与对照组比较,差异具有统计学意义(P<0.01)。两组治疗3周、6周、12周、24周后加巴喷丁片和盐酸曲马多缓释片的服用剂量比较,差异均具有统计学意义(P<0.05)。两组治疗12周、24周后SF-36各项评分(PF、RP、BP、GH、VT、SF、RE、MH)与同组治疗前比较,差异均具有统计学意义(P<0.05)。治疗组治疗12周、24周后SF-36中PF、RP、BP、VT、MH评分与对照组比较,差异均具有统计学意义(P<0.05)。治疗组治疗后头晕、嗜睡、恶心的发生率分别为6.7%、3.3%和3.3%,对照组分别为24.1%、17.2%和20.7%,两组比较差异均具有统计学意义(P<0.05)。结论穴位注射配合药物是一种治疗带状疱疹后遗神经痛的有效方法,能减少服用加巴喷丁片的剂量,从而减少不良反应。
