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航空摄像技术在松材线虫病监测上的应用 总被引:5,自引:0,他引:5
本文介绍了安徽省森防总站利用引进的航空摄像系统监测松材线虫病在安徽的发生和防治情况,阐明了其操作过程,图像处理大致步骤以及在生产上的应用价值。 相似文献
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浅谈松材线虫病监测防控技术 总被引:1,自引:0,他引:1
松材线虫病又称松树枯萎病,是由松材线虫寄生在松树体内所引起的一种毁灭性病害。笔者介绍了该病的危害情况、危害症状、传播途径,提出了通过清理病死树、诱木防治传媒天牛、诱捕器诱杀传媒天牛、喷药防治、树干注药防治、生物防治、病材处理等进行监测、防控的措施。 相似文献
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安徽省松材线虫病疫情管理系统(以下简称管理系统),是安徽省林业有害生物检疫局和中国林科院资源信息研究所合作建立的。该系统是国内首例真正意义上用于森林病虫害监测、管理与分析的地理信息系统,为我省松材线虫病治理工作提供了新的技术支撑和管理手段,实现了对全省1988年松材线虫病发病以来档案信息的管理与应用,并可及时进行数据信息更新。通 相似文献
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6月24日至26日,自治区林业局在贺州市召开了全区松材线虫病预防工作座谈会,进一步贯彻落实了《国务院办公厅关于进一步加强松材线虫病预防和除治工作的通知》,传达贯彻了“全国森林病虫害防治暨松材线虫病预防和除治工作座谈会”精神,研究部署了我区松材线虫病预防工作。自治区林业局党组成员、副局长廖培来作了重要讲话,各地市林业局、区直属国有林场分管森防工作的副局(场)长、森防站站长和有关领导共100多人出席了会议。会议,提出了预防工作目标,落实了工作责任,自治区林业局与各地市林业局、区直属国有林场签订了20… 相似文献
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研究和综述了寄生松科植物的伞滑刃属(Bursaphelenchus)的线虫23种,松材线虫的寄主松科植物108种、携带昆虫40种及发病的环境条件。 相似文献
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To clarify the effect of aerial insecticide spraying on pine wilt disease, pine wilt disease impacts was surveyed in pine stands and the damage evaluated using a logistic model. Eleven quadrats were established randomly in stands with or without aerial spraying. Aerial spraying alone did not entirely prevent the disease. Average annual mortality was lower in stands with aerial spraying than in stands without aerial spraying. Aerial spraying slowed the progress of pine wilt disease, as measured by the disease progress index. The biomass of live pine trees decreased with increased damage in stands without aerial spraying, whereas biomass was maintained in stands with aerial spraying. However, the relative basal area showed that succession of pine forests to forests dominated by other species was accelerated even in stands with aerial insecticide spraying. 相似文献
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松材线虫病 [Bursaphelenchusxylophilus(Steiner&Buhrer)Nickle]是一种毁灭性的森林病害。不同松种和同一松种不同种源的抗病性存在明显差异 ;松树通过固有或诱导的防卫系统抵抗松材线虫的扩散和繁殖。本文就国内外关于松树抗松材线虫病机理方面的研究进行综述 相似文献
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Three- or 4-year-old Japanese black pine seedlings were exposed to simulated acid rain (SAR) at pH 3 for two months, then
inoculated with a virulent isolate (S 10) of pinewood nematodes. The experiments were repeated three times in 1996–1998. The
exposure to SAR killed no seedlings, and retarded the development of disease symptoms in the seedlings inoculated with nematodes.
In the experiments in 1996 and 1997, however, cessation of resin exudation, and primary decrease in the xylem conductivity
occurred earlier in the seedlings exposed to SAR than in those exposed to tap water as a control. These results imply that
acid rain at pH 3 influenced an increase in some resistance of Japanese black pine seedlings to pinewood nematode, and that
this improved resistance could potentially overcome damage caused by acid rain. The exposure to SAR did not have any significant
effect on the water relations of the seedlings itself, suggesting that retardation of the symptom development after the exposure
to SAR could not be attributed to the improvement in the water relations.
This work was supported in part by a Grants-in-Aid for Scientific Research from the Japan Forest Technical Association (JAFTA). 相似文献
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比较了保护剂平衡时间、解冻温度、线虫浓度及线虫发育期对低温冷冻松材线虫存活的影响.结果表明,平衡时间对冷冻保存有较大影响,以20%甘油为保护剂,在4℃下平衡12h后转入-80℃超低温冰箱,1d后线虫存活率为(41.7±4.9)%;冻存存活率与线虫发育期有一定关系,幼虫显著高于成虫,幼虫、雌成虫和雄成虫的存活率分别为(31.5±7.4)%,(7.9%±3.5)%,(6.6±2.8)%.在所选择的解冻温度(30 ~45℃)和线虫浓度(10 500 条/mL~8 4000条/mL)范围内,解冻温度及线虫浓度对存活率影响差异不明显. 相似文献