首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   84篇
  免费   27篇
  国内免费   5篇
林业   3篇
农学   3篇
  3篇
综合类   53篇
农作物   2篇
畜牧兽医   1篇
园艺   1篇
植物保护   50篇
  2023年   5篇
  2022年   2篇
  2021年   1篇
  2020年   5篇
  2019年   3篇
  2018年   1篇
  2017年   2篇
  2016年   3篇
  2015年   4篇
  2014年   5篇
  2013年   2篇
  2012年   8篇
  2011年   17篇
  2010年   8篇
  2009年   9篇
  2008年   10篇
  2007年   12篇
  2006年   11篇
  2005年   6篇
  2002年   1篇
  1998年   1篇
排序方式: 共有116条查询结果,搜索用时 15 毫秒
1.
从火腿肠种类、诱饵放置距离、诱集时间3方面,对比研究12种火腿肠饵料对红火蚁的引诱效果。结果表明,猪肉以及脂类物质含量较高的蘑菇风味香肠、孜然风味香肠、特级火腿肠和盐水方腿香肠对红火蚁诱集效果最好,鸡肉火腿肠、玉米热狗肠、椰果烤香肠、原味烤香肠和香辣烤香肠对红火蚁工蚁的引诱效果次之,鱼肉肠、芝士鳕鱼肠和原味鳕鱼肠对红火蚁诱集效果相对较差。在试验设置距离范围内,距蚁巢20 cm和30 cm处各种火腿肠饵料的引诱效果最强,之后随着距离的增大引诱效果呈现下降趋势。蘑菇风味香肠、孜然风味香肠、特级火腿肠和盐水方腿香肠对红火蚁的持续诱集时间短于鱼肉肠、芝士鳕鱼肠和原味鳕鱼肠等,但最大召集红火蚁量高于后者,且能较快达到最大召集量。综上,猪肉以及脂类物质较多且肉香味浓郁的蘑菇风味香肠、孜然风味香肠、特级火腿肠和盐水方腿香肠对红火蚁引诱效果最好,诱集范围广,召集速度快,可优先选作红火蚁疫情调查与监测的诱饵。  相似文献   
2.
红火蚁作为一种入侵我国且危害较大的害虫,近年来在我国多个省市均有发生,而且呈不断蔓延的趋势,其危害的地域及作物种类日益广阔,对于园林植物及城市绿地带来的危害也日益严重。文章主要介绍了红火蚁对园林植物及其城市绿地的生态环境、公共设施、人身安全等诸多方面的危害特点,红火蚁的识别特征以及对红火蚁的防控等。  相似文献   
3.
本文介绍了2008年扶桑绵粉蚧在我国首次发现以来,我国各级农业部门及其所属检疫机构对其处置情况,包括核实发生情况、开展全面调查、通报发生情况、开展风险分析、确定检疫地位和开展封锁控制等措施,为今后处置其他新发现植物有害生物提供了借鉴。从扶桑绵粉蚧的处置过程也得出一些启示,包括如何提高新病虫的发现能力,如何完善检疫防范的范围,如何加强部门配合。  相似文献   
4.
The red imported fire ant (RIFA) Solenopsis invicta Buren causes severe damage to humans and animals as well as the environment. Chemical treatment is the main strategy of RIFA management, which also is potentially toxic to the environment. Plant essential oils (EOs) are considered as potential substance that can be used to control insects. This study aimed to identify the chemical composition of camphor EO and investigate the insecticidal activity on RIFAs. The chemical composition of the EO was analyzed by gas chromatography/mass spectrometry and gas chromatography with flame ionization detection. Results revealed that 36.61% camphor and 30.05% cineole were the major components. The insecticidal activity of camphor EO was assessed against RIFA workers by conducting two different bioassays: fumigant toxicity and repellence. Fumigant toxicity assay results showed that the lethal dose (LC50) of the EO at 24 h was 1.67 and 4.28 μg/ml for minor and major workers, respectively; knockdown time (KT50) was 10.82 and 14.73 h. At 2.55 μg/ml, the highest average mortality of the ants was 84.89% after 72 h. Camphor EO exhibited fumigant toxicity against minor and major workers as indicated by the effects on attacking, feeding, and climbing behaviors. This EO was also strongly repellent to the two size workers of the colony as observed in their behavior against Tenebrio molitor treated with 5 µl EO. The fumigant toxicity and repellence of camphor EO against RIFA indicated that this substance could be a potential alternative for the development of eco-friendly products used to control pests.  相似文献   
5.
绿僵菌与8种红火蚁防控常用农药相容性   总被引:1,自引:0,他引:1  
研究了茚虫威、多杀菌素、苯氧威、氟虫腈、硼酸、烯虫酯、阿维菌素和高效氯氰菊酯等防控红火蚁的常用农药在田间推荐剂量及亚致死剂量下对黄绿绿僵菌Metarhizium flavoviride SM076和金龟子绿僵菌M.anisopliae M09萌发、生长及产孢的影响。结果表明,0.1 mg/m L茚虫威、0.1 mg/m L多杀菌素和0.5 mg/m L烯虫酯浓度下,对黄绿绿僵菌SM076萌发、生长及产孢等没有影响。0.5 mg/m L茚虫威、0.1 mg/m L阿维菌素、0.01 mg/m L苯氧威、0.5 mg/m L烯虫酯和0.05 mg/m L氟虫腈对金龟子绿僵菌M09的萌发、菌丝生长和产孢量均无影响。因此在田间应用这两种虫生真菌时,可以考虑与上述农药结合使用。  相似文献   
6.
对采自广州番禺区、南沙区,惠州和深圳市等地的红火蚁Solenopsis invicta虫体进行病原菌的分离与鉴定。致病力测定发现分离物PL对红火蚁有一定致病作用。采用单孢分离法获得PL菌株,形态学鉴定该菌株为淡紫拟青霉Paecilomyces liacinus。对PL菌株的10个分离株PL01~10进行致病力测定,结果表明,经1×108孢子/ml的浓度处理后第15d,菌株PL04处理的红火蚁累计死亡率最高,为70.60%。  相似文献   
7.
通过研究光活化杀虫活性成分 α -三联噻吩( α -T)对红火蚁 Solenopsis invicta Buren工蚁觅食行为和触角识别功能的影响,探讨了光活化成分用于控制红火蚁的可行性。用Potter喷雾法将100 μg/mL的 α -T丙酮水溶液喷施于红火蚁中型工蚁体表,再经紫外(UVA)光照射30 min,在处理后5、10、15、20和30 min时,试蚁对火腿肠的识别率分别为20.00%、25.00%、38.33%、40.00% 和41.67%,对杀虫剂饵料的识别率分别为3.33%、0、0、3.33%和0,聚集率分别为17.50%、38.33%、 32.50%、45.00%和48.33%;经100 μg/mL的 α -T涂抹试蚁触角再经紫外光照处理30 min后,触角对丙酮反应的电位值为-0.177 mV,可正常行走的工蚁比率为75.00%;以100 μg/mL的 α -T涂抹试蚁触角并经紫外光照射30 min后10 h,红火蚁的死亡率为27.50%;上述结果均与 α -T黑暗处理、对照(CK)光照处理和CK黑暗处理结果差异显著。 α -T对红火蚁工蚁食物识别和探路行走能力均具有良好的光活化抑制作用,以其防治红火蚁具有良好可行性。  相似文献   
8.
BACKGROUND: The fire ant, Solenopsis invicta, is one of the most aggressive and invasive species in the world. The trail pheromone Z,E‐α‐farnesene (91% purity) was prepared, and disruption of worker trail orientation was tested using an ethanol‐based aerosol formulation presenting a single puff of this compound by airbrush and compressed air. Trail‐following behaviour was recorded by overhead webcam and ants digitised before and after presentation of the aerosol treatment at four rates (1.6, 16, 160 and 1600 ng cm?2). RESULTS: Ants preferred 110 ng cm?1 over 11, 1.1 and 0.11 ng cm?1 for trail following. Within seconds of presentation of 1600 ng cm?2, the highest dose tested, trail disruption was observed. Disruption was evident as reduced arrival success and reduction in the trail integrity statistic (r2), as well as increased deviation from the trail (deg). The distribution of walking track angles was also flattened. CONCLUSIONS: The feasibility of using aerosol for delivery of trail pheromone was demonstrated, but the need for high purity combined with the difficulty of commercial supply makes this technique impractical. However, the commercial production of Z,E‐α‐farnesene of high purity by industrial biotechnology or from (E)‐nerolidol may be possible in future, which would facilitate further development of trail pheromone disruption of S. invicta. Copyright © 2012 Society of Chemical Industry  相似文献   
9.
以含0.05%氟虫腈为有效成分与多种天然物质配制饵剂,撒于红火蚁(SolenopsisinvatBuren)蚁巢上,药剂中的引诱剂吸引红火蚁取食,将饵剂带入巢内,并通过红火蚁在巢内交哺喂食行为将药剂传递给其它各品级个体,引起全巢红火蚁中毒死亡.结果表明,0.05%氟虫腈杀蚁饵剂对红火蚁具有良好的控制效果,药后15d开始进入防效高峰期,25~30d防效达到最佳.0.05%氟虫腈杀蚁饵剂药后30d对工蚁的防治效果达93.39%~100.00%;灭巢效果达95.84%~100.00%;药后50d,蚁群级别降低率达83.33%~100.00%,显著优于对照药剂.  相似文献   
10.
红火蚁形态学、生物学与防控对策   总被引:1,自引:0,他引:1  
采用实地调查和实验室观察相结合的方法,了解红火蚁的基本形态特征及生物学特性,并提出防控对策,为检疫鉴定、除害处理和有效防控等提供依据。  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号