熊蜂的病虫害   总被引：1，自引：0，他引：1  

李继莲  吴杰  彭文君  安建东  国占宝  童越敏 《蜜蜂杂志》2004,(12):12-13

熊蜂的商业性饲养及世界许多国家间的进出口,引起熊蜂的病原物和寄生虫的爆发。目前,大部分病原物(真菌、孢子虫、线虫)都已从熊蜂身上分离出,对熊蜂的影响也有所了解。综合概述了熊蜂的病毒、细菌、孢子虫、线虫、螨和眼蝇科病的发生、症状、分布及其对熊蜂的影响。  相似文献   

锯缘青蟹黄水病病原菌的分离与鉴定     

王海潮  张兴桃  廖红艳  陈红玲 《安徽农业科学》2011,39(33):20523-20524,20651

[目的]确定锯缘青蟹黄水病致病菌的病原。[方法]对从患黄水病的锯缘青蟹体内分离出的28株致病菌株进行培养、形态鉴定、生理生化鉴定和人工感染等试验。[结果]分离出的菌株均为弧菌科细菌,其中嗜水气单胞菌12株、辛辛那提弧菌8株、副溶血弧菌5株、温和气单胞菌3株。[结论]4种菌株均为青蟹黄水病的病原菌,其中嗜水气单胞菌为优势种群。  相似文献   

安徽地区几种常发油茶病害的发生与防治     

余英才 《园艺与种苗》2019,(4):77-79

YU Ying-cai(Susong Forestry Bureau,Susong,Anhui 246500)  相似文献   

Bacterial Pathogens of the Bovine Respiratory Disease Complex     

Dee Griffin  M.M. Chengappa  Jennifer Kuszak  D. Scott McVey 《Veterinary Clinics of North America: Food Animal Practice》2010

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A survey of manure management on pig farms in Northern Vietnam   总被引：1，自引：0，他引：1  

T.K.V. Vu  M.T. Tran  T.T.S. Dang   《Livestock Science》2007,112(3):288-297

Animal manure can provide nutrients for crop and fish production and input for biogas production but, if managed inappropriately, can also have a negative impact on the environment. The objective of this survey was to provide information about pig production and manure management practices in the Northern part of Vietnam in order to identify and prioritize research needs for future improvements in pig manure management. A survey was conducted by in-depth interviews on 54 pig farms in two Northern Vietnamese provinces, Thai Binh and Bac Giang. In addition to the survey, also key informant responses were obtained in the two provinces to help identify problems with existing manure management. The survey showed that large-scale pig producers (> 100 fatteners or 20 sows) had more pigs per hectare than medium-scale (19–99 fatteners, 5–19 sows) or small-scale (< 19 fatteners, < 5 sows) producers. Biogas was produced from 43% of the total manure produced on all surveyed farms, and was used for cooking. The proportion of total manure applied to crops was only 5% in Thai Binh and 35% in Bac Giang. Large-scale producers tended to operate smaller fishponds, and medium-scale farms operated larger ones. The farmers were of the opinion that fish in ponds fertilized with pig manure grew significantly faster than did fish in ponds supplied with other feed or types of fertilizer. Twenty percent of pig producers reported that they raised pigs just to provide manure to feed their pond fish. A large proportion (19%) of the total manure produced was discharged into public sewage systems, rivers and lakes. Of the 54 householders interviewed, 46 believed that animal manure caused serious damage to the environment. Farmers interviewed had little or no expertise in handling liquid manure, composting solid manure, or reducing contamination by means of microbial reduction of pollutants during manure management. In general, specialized pig production is seen as a commercial operation, while manure management remains non-commercial. The survey implied that more information to farmers, as well as stronger regulation of manure management, is needed in Vietnam.  相似文献   

玉米穗腐病研究进展   总被引：12，自引：0，他引：12  

任金平 《吉林农业科学》1993,(3):39-43,60

玉米穗腐病是世界性严重病害。据报道世界上引起玉米穗腐病的病原菌达数十种,串珠镰刀苗(Fusarium mouiliforme)是大部分国家和地区的优势病原菌。该病的发生与品种、气候条件、果穗着生状态,鸟及昆虫的取食等有关。在抗性鉴定中,牙签接种、注射接种和喷雾接种是目前最常用的按种方法,寄主与病原物之间存在着显著的相互关系,抗性属核遗传,附加基因效应明显,为不完全显性。培育和推广抗病品种是目前唯一有效可行的防治方法。  相似文献   

苹果花叶病研究进展     

李春霞 《陕西农业科学》2021,(8):82-86

苹果花叶病是一种世界性的病害,在各苹果产区危害日趋严重,给苹果高产优质带来巨大影响。为了对苹果花叶病更加系统全面的认识,寻找更有效的防治方法与措施。笔者从苹果花叶病对生长结果、叶绿素含量、光合作用和细胞性态结构等方面的影响、花叶病的症状表现、果树病毒的检测方法、苹果花叶病病原种类及检测、花叶病的防治方法等方面进行综述。同时提出今后研究的方向。  相似文献   

细胞传感器检测技术研究进展     

杨双  马军武 《安徽农业科学》2010,38(33):18673-18674,18677

细胞传感器以细胞作为敏感元件来研究信号识别、传导和指示的过程,可以用于细胞的信息功能及目的物质的检测,具有快速、敏感和特异的特点,已被广泛用于食品安全、农药残留、环境污染、病原微生物及生物安全检测等方面。笔者主要介绍了细胞传感器在病原体和毒素检测中的最新研究进展,分别叙述了现有的各类细胞传感器的元件构成和作用原理,并展望了细胞传感器未来研究和应用方面的发展方向。  相似文献   

赤芍根腐病病原菌鉴定及生物学特性          下载免费PDF全文

马娅楠  李继平  郑果  张金奎  马生彪  惠娜娜  王立  张自强 《西北农业学报》2023,(9):1486-1494

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