检索结果-南通市图书馆

Association of host plant growth and weed occurrence with armyworm(Mythimna separata) damage in corn fields

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Integrative Agriculture 2018年第7期17卷 1538-1544页

作者： ZHANG Kun-peng YU Zhi-hao JIANG Shi-xiong SUN De-wen HUI Jun-tao ZHENG Yu-liang LI Xiao-zhen WANG Xing-yun WU Jun-xiang State Key Laboratory of Crop Stress Biology in Arid Areas/College of plant protection Northwest A&F UniversityYangling 712100P.R.China Anyang Institute of Technology Anyang 455000P.R.China plant protection and quarantine station of Sanyuan county Sanyuan 713800P.R.China plant protection and quarantine station of Lantian county Lantian 710500P.R.China plant protection and quarantine station of Chang'an District Chang'an 710100P.R.China Zhengping plant protection Technology Limited Company Xi'an 710000P.R.China

To clarify association between armyworm（Mythimna separata） damage level and the corn growth and weed occurrence, we investigated corn plant height, stem diameter and vigor as well as weed coverage and biomass. The investigations were conducted at three locations of Shaanxi Province, China which were suffered seriously from armyworm. Significant correlations were found between the parameters analyzed. At stunted corn growth and presence of plenty of weeds, the armyworm damage tended to be heavy; oppositely, when corn grew well and weed density were low, armyworm harm was the minimal. Therefore, corn growing status and weed density can significantly affect armyworm damage level. Our results imply that promoting corn growth and timely removal of weeds are conducive to reducing armyworm occurrence.

关键词： Mythimna separata damage degree corn growth corn field weeds

Strategic Thinking and Measures for plant quarantine and Food Safety

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Asian Agricultural Research 2013年第8期5卷 83-85页

作者： Guibin WANG Jinghan YANG Yongmei LI Daiju CUN Rui MA Guiping FAN plant protection and quarantine station of Chuxiong Yi Autonomous Prefecture Kunming No.10 Middle School plant protection and quarantine station of Yunnan Province plant protection and quarantine station of tengchong county plant protection and quarantine station of Honghe Hani and Yi Autonomous Prefecture plant protection and quarantine station of Eshan county

This paper describes the importance of plant quarantine to the food safety in China through cases where plant quarantine helps to effectively intercept harmful organisms for food safety and promote export and import t... 详细信息

关键词： plant quarantine Food safety Thinking Measures

Identification of Heterodera schachtii on sugar beet in Xinjiang Uygur Autonomous Region of China

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Integrative Agriculture 2022年第6期21卷 1694-1702页

作者： PENG Huan LIU Hui GAO Li JIANG Ru LI Guang-kuo GAO Hai-feng WU Wei WANG Jun ZHANG Yu HUANG Wen-kun KONG Ling-an PENG De-liang State Key Laboratory for Biology of plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193P.R.China The National Agro-Tech Extension and Service Center Beijing 100026P.R.China Key Laboratory of Integrated Pest Management on Crops in Northwestern Oasis of Ministry of Agriculture and Rural Affairs Institute of Plant ProtectionXinjiang Academy of Agricultural SciencesUrumqi 830091P.R.China Agricultural Technology Extension Service Center of Xinyuan county Yining 835800P.R.China plant protection station of Xinjiang Uygur Autonomous Region Urumqi 830006P.R.China

The sugar beet cyst nematode,Heterodera schachtii,is a major parasite of sugar beet which has been recognized and listed as a quarantine nematode in China and more than 20 countries and regions worldwide.A survey for important nematodes was undertaken in the sugar beet planting area of China during 2015-2018,and numerous cysts were collected from sugar beet fields in Xinyuan county,Xinjiang Uygur Autonomous Region of China.The observations of morphological and morphometric characteristics revealed that cysts,vulval cones and second-stage juveniles of the Xinjiang population were in the same range of each other and within those of other reported H.schachtii populations.Molecular analysis of rDNA-ITS,28S-D2/D3 and mtDNA cytochrome c oxidase subunit 1(COI)gene sequences suggested that the Xinjiang population clustered in a branch with those foreign populations,and the sequence similarity was as high as 99.81-100%.Moreover,this result was confirmed by PCR assay with species-specific primer SHF6 and rDNA2 of H.schachtii,and the pathogenicity test confirmed successful Xinjiang population reproduction in both plant hosts.In conclusion,based on morphological and molecular characterization,this study confirmed that the cyst nematode population collected from sugar beet fields in Xinjiang is H.schachtii.As far as we know,this is the first report of H.schachtii on sugar beets in Xinjiang,China.

关键词： sugar beet cyst nematode Heterodera schachtii morphological molecular identification

Causes of Recurrence of Rice Chilo suppressalis( Walker) in Longyou county and Prevention and Control Measures

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Asian Agricultural Research 2019年第2期11卷 111-113,116页

作者： Ying WANG Yong ZHANG Chenguang ZHANG Runzhong LOU Xinxin XU Xiaowei XU Longyou county plant protection and quarantine station of Zhejiang Province Quzhou City plant protection and quarantine station of Zhejiang Province

In recent years,the occurrence of rice Chilo suppressalis( Walker) in Longyou county of Zhejiang Province has increased year by year and has become aggravated. This poses a great threat to the safety of rice production. In order to curb the recurrence momentum of rice C. suppressalis,according to the dynamic monitoring and field system survey of rice C. suppressalis in Longyou county since 2015,the causes of the annual increase of rice C. suppressalis in recent years were analyzed,and the recurrence area of C. suppressalis was introduced,and finally some prevention and control measures were put forward.

关键词： Chilo suppressalis (Walker) Causes of recurrence Prevention and control measures

Population Dynamics and Control of Chionaspis subcorticalis Green

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

plant Diseases and Pests 2012年第1期3卷 30-32页

作者： LI Yong-mei LUO Rong ZHAN Qing-quan FAN Gui-ping Yunnan plant protection and quarantine station Kunming 650034China Yuxi plant protection and quarantine station Yuxi 653100China Eshan plant protection and quarantine station Eshan 653200China

Application Effect of Pesticide Synergist‘Jijian' on Wheat Stripe Rust

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Agricultural Biotechnology 2018年第4期7卷 36-39页

作者： Dongyang LUO Changjia PENG Mingwen WANG Tikun BAI Pan DING Yan ZHENG Tiejun XIAN Yuheng YANG plant protection and plant quarantine station of Yilong county Yilong 637641China plant protection and quarantine station of Nanchong City Nanchong 637000China Meteorological Bureau of Nanc hong City Nanc hong Siehuan 637000 College of plant protection Southwest UniversityBeibei 400716China

The aim of this study is to clarify the application effect of pesticide decrement synergist ＇ Jijian＇ on wheal stripe lUSt. Sampling investigation, randomized block design and statistic analysis were carried out to find out the field efficacy of adding ＇ Jijian＇ to triadimefon WP and propiconazole EC on controlling wheat stripe rust. The results showed that during the epidemic period of stripe rust, the control effects on the 7^th and the 19^th d reached more than 93% and 100% , respectively, by the application of 15% triadimefon WP of 1 200 g/hm^2 and 25% propiconazole EC of 600 mlhm^2 , respectively for 2 times ; when 15% triadimefon WP of 840 g/hm^2 ＋＇ Jijian＇ of 225 g/hm^2 or 25 % propiconazole EC of 420 mlhm^2 ＋＇ Jijian＇ of 225 g/hm^2 were applied （ adding ＇ Jijian＇ and reducing the dosage of the 2 pesticides by 30% ） , the control effect on the 7^th d was 89.4% and 91.7% , respectively, while the control effect on the 19a＇ d was 99.8 - 100% ; when 15% triadimefon WP of 720 - 600 g/hm^2 ＋＇ Jijian＇ of 225 g/hm^2 or 25% propiconazole EC 360 - 300 mlhm^2 ＋＇ Jijian＇ of 225 g/hm^2 were applied （ adding ＇ Jijian＇ and reducing the dosage of the 2 pesticides by 40% - 50% ） , the control effect on the 7a＇ day reached more than 78.0% , while the control effect on the 19^th day was 97.7% - 99.8%. There was no significant difference on the control effect at the 7^th d between the treatments using the 2 pesticides alone and the treatments adding ＇ Jijian＇ and reducing the dosage of the 2 pesticides by 30%, but all had significant differences from the treatments adding ＇ Jijian＇ and reducing the dosage of the 2 pesticides by40% -50%. There was no significant difference on the control effect of the 19^th d among different treatments. Therefore, if the disease is not serious, the application of ＇ Jijian＇ can reduce the application amounts of pesticides by 40% -50%, that is, 15% triadimefon WP of 720 -600 g/hm^2 ＋＇ Jijian＇ of 225 g/hm^2 or 25 % propiconazole EC of 360- 300 ml/hm^2 ＋＇ Jijian＇ of 225 g/hm^2, which is hel

关键词： Wheat stripe rust Pesticide decrement synergist ＇Jijian＇ Triadimefon Propiconazole Control effect

Control Effect and Application Technology of Mandipropamid on Red Taro Blight

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Agricultural Research 2017年第1期9卷 78-80页

作者： Huifu WANG Yongbin ZHAO Weidong QU Hui FANG Huiqin ZHANG Taizhou Academy of Agricultural Sciences planting Industry Management Office of Linhai Municipal Bureau of Agriculture plant protection and quarantine station of Xianju county

The field experiment results showed that 250 g/l mandipropamid suspension had good control effect on red taro blight,and the 1∶1500 suspension was applied twice continuously during the early period( June 25) and culmination period( July 12) of taro blight; the control effect 23 d after the last application reached 79. 28%,significantly better than that of conventional pesticide,and it was safe,so it had good prospects for the development and application in production.

关键词： 250g/l mandipropamid suspension Red taro blight Control effect Safety

Resistance of Diamondback Moth Population against Eight Kinds of Insecticides in Luliang county of Yunnan Province

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

plant Diseases and Pests 2014年第1期5卷 28-31页

作者： Yin Yanqiong Li Xiangyong Zhao Xueqing Zhu Jianliang Shen Aidong Institute of Agricultural Environment Resources Yunnan Academy of Agricultural Sciences Luliang plant protection and quarantine station

Resistance of diamondback moth （ Plutella xylostella L. ） population against eight kinds of insecticides in Luliang county of Yunnan Province in China was determined in laboratory by leaf dipping method in autumn of 2009 and spring of 2010. The monitoring results showed that diamondback moth population in Lu- liang county of Yunnan Province had produced extremely high resistance against beta-cypermethrin and avermectin; LC50 in autumn of 2009 were 1 035.21 and 1 055.19 mg/L, while those in spring of 2010 were 9.55 and 13.84 mg/L, respectively; the resistance ratios were from 291.61 to 692.00. The diamondback moth population had moderately high resistance to spinosad, indoxacarb and chlorfluazuron; LC50, in autumn of 2009 were 1.59, 2.80 and 23.97 mg/L, while those in spring of 2010 were 13.83,24.57 and 42.73 mg/L, respectively; the resistance ratios were froml3.25 to 129.98. The diamondback moth population was sensitive to diafenthiuron, BT and chlorfenapyr; LC50 in autumn of 2009 were 16.51, 47.40 and 0.85 mg/L, while those in spring of 2010 were 1.34, 3.38 and 1.60 mg/L, respectively; the resistance ratios were from 0. 77 to 8.45. The resistance of diamondback moth population in Luliang county of Yunnan Province against eight kinds of insecticides successively were diafenthiuron 〈 BT preparations 〈 chlorfenapyr 〈 spinosad 〈 indoxacarb 〈 chlorfluazuron 〈 beta-cypermethrin 〈 ave rmectin, and the resistance in spring was higher than that in autumn.

关键词： Diamondback moth Resistance Application strategy

Morphological Characteristics of the Long-legged Chafer Hoplia spectabilis Medvedev(Coleoptera: Scarabaeoidea) at Various Developmental Stages

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

plant Diseases and Pests 2015年第3期6卷 25-29页

作者： Guo Jianpu Nong Xiangqun Wang Feng Seed station of Haixi Mongolian-Tibetan Autonomous Prefecture State Key Laboratory for Biology of plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural Sciences Forest Pest Control and quarantine station of Tianjun county

The long-legged chafer Hoplia spectabilis Medvedev was described in 1952. Its occurrence was rarely reported and the document about its morphological details was not found. However, the chafer did frequently break out at Buha River valley in Tianjun county, Qinghai province, China since 2005. In this paper, we present a comprehensive description and illustrations of morphological characteristics of H. spectabilis from local collection, including developmental stages of adult, egg, larva and pupa. Among them, characteristics of the larva and pupa, the male genitalia as well as the difference between male and female are described for the first time. The morphological data will be quite useful for identification and characterization of the chafer, a poorly known species. It will also be an important basis for the chafer control when it breaks out.

关键词： Hoplia spectabilis Medvedev Morphological characteristics Adult Egg Larva Pupa