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苏云金杆菌是一种重要的微生物杀虫剂,而且能够编码几种昆虫毒蛋白基因。本文概述 了苏云金杆菌在森林害虫综合治理中的应用。苏云金杆菌HD1菌株及其衍生物被广泛用于防 治各种森林害虫,如Lymantria dispar, Choristoneura fumiferana, Thaumetopoea pityo campa, Rhyacionia buoliana和Lymantria monacha。文章提供了Bt毒蛋白基因在林木中的 构建和表达方面的研究进展并对Bt产品在森林害虫综合治理上的应用前景及限制因素进行了 初步讨论。 相似文献
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Sven Buchholz Peter Neumann Katharina Merkel H. Randall Hepburn 《Journal of pest science》2006,79(4):251-254
Small hive beetles, Aethina tumida Murray, are parasites and scavengers of honeybee colonies, Apis mellifera L., and have become an invasive species that can cause considerable damage in its new distribution areas. An effective subspecies of Bacillus thuringiensis Berliner (=Bt) would provide an alternative to chemical control of this pest. Therefore, we tested three different Bt strains [B. thuringiensis, var. aizawai (B401®), B. thuringiensis var. kurstaki (Novodor®) and B. thuringiensis var. San Diego tenebrionis (Jackpot®)] and Perizin® (3.2% coumaphos), each applied on combs with a pollen diet fed to pairs of adult beetles. This evaluates the products for the suppression of successful small hive beetle reproduction. While none of the tested Bt strains showed a significant effect on the number of produced wandering larvae, we could confirm the efficacy of coumaphos for the control of small hive beetles. We further show that it is also efficient when applied with a lower concentration as a liquid on the combs. We suggest the continued search for efficient Bt strains naturally infesting small hive beetles in its endemic and new ranges, which may become a part of the integrated management of this pest. 相似文献
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Agricultural productivity may be raised in a sustainable way by many different technologies such as biological fertilizers,
soil and water conservation, biodiversity conservation, improved pest control, and changes in land ownership and distribution.
Of these measures, biotechnology applications probably hold the most promise in augmenting conventional agricultural productivity,
because biotechnology applications give not only the need to increase production, but also protect the environment and conserving
natural resources for future generations. Biotechnology applications will have the possibilities to increase productivity
and food availability through better agronomic performance of new varieties, including resistance to pests; rapid multiplication
of disease-free plants; ability to obtain natural plant products using tissue culture; diagnosis of diseases of plants and
livestock; manipulation of reproduction methods increasing the efficiency of breeding; and the provision of incentives for
greater participation by the private sector through investments. Insect resistance through the transfer of a gene for resistance
fromBacillus thuringiensis (Bt) is one of the most advanced biotechnology applications already being commercialized in many parts of the world. This paper
reviews the development and the status ofBt technology and application ofBt transgenic plants in current agriculture, and discusses specific issues related to the transfer of the technology to the
future of genetic engineered trees with emphasis on conifers.
Biography: Tang Wei (1964-), male, Ph. Doctor, Research associate, Department of Biology, Howell Science Complex, East Carelina University,
Greenville, NC 27858-4353, USA.
Responsible editor: Chal Ruihai 相似文献
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文中通过回顾国外林业有害生物防治思想的发展历程,指出林业有害生物的防治手段逐渐趋向生态化和综合化,且随着经济社会及技术手段的不断发展,还增加了对防治效果的经济分析,利用实证分析手段,从多维度提升林业有害生物防治效率,实现防治工作中生态效益与经济效益的协调发展;通过介绍美国的科学化防治及德国的生态化防治模式,结合我国现阶段林业有害生物防治思想的发展现状,提出应通过生态化防治理念、科学化防治手段、效率化防治措施及责任化防治意识推动我国林业有害生物防治体系更加健全,从而实现巩固林业建设成果、保障林业经济发展、维护国土生态安全、加快生态文明建设的美好愿景。 相似文献
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从分析综合轮伐期的相关因素入手,对目标综合轮伐期、期初综合轮伐期、期末综合轮伐期三者进行比较,提出未来森林资源利用三种设计模型,并举例进行验证。 相似文献
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森林植物群落多样性与虫害自然控制力的研究进展 总被引:1,自引:0,他引:1
讨论了森林植物群落多样性与森林虫害自然控制力间的关系,阐明了森林虫害自然控制力有随森林植物群落多样性的升高而增强的趋势.并认为森林虫害自然控制力的本质是森林植物群落多样性的生态系统功能.初步提出了通过合理地提高森林植物群落多样性来提高森林虫害自然控制力的主张及提高森林虫害自然控制力的几种具体途径,即合理的乔木物种混交;引进和保留乡土的草本、灌木物种;提高生态系统水平的生物多样性;避免营造大面积的人工纯林. 相似文献
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在山西省范围内对35种森林植物检疫对象进行了全面调查,结果表明,有分布的检疫对象共有9种,即杨干透翅蛾、落叶松种子小蜂、锈色粒肩天牛、双条杉天牛、梨圆蚧、枣大球蚧、松疱锈病、冠瘿病、板栗疫病。其余26种没有分布。 相似文献
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在分析林业有害生物防治专项资金项目管理工作内容的基础上,结合广东实际,提出了广东省林业有害生物防治专项资金项目管理工作中存在的问题和对策。 相似文献
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在新形势下,传统的森林经理已经不能满足需要,而面临着一些新的问题:因缺乏监督机制,森林经营方案不能付诸实施;因执法力度不够,森林经理目标无法实现;因为没有注入新的内容,森林生态系统经营管理力度不够;森林资源资产化管理和分类经营管理尚待加强。因此必须强化森林资源监测工作,除了已正常开展的如一类、二类、三类调查、人工造林、更新实绩核查、采伐限额执行情况核查,征占用林地调查等外,还有尚未开展的工作,如:封山育林核查、义务植树该查、森林经营方案执行情况核查、野生动物资源监测、森林生态环境监测、生态工程林监测等应尽快开展起来。详细论述了森林资源监测的重要作用并对今后工作提出了要求。 相似文献