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近年来病虫害已严重威胁到杨树生长。为了及时和系统地控制杨树病虫害,有效地减少病虫害所产生的损失,通过调查,并结合我公司原料林基地杨树病虫害防治的试验和经验,对杨树病虫害防治措施进行了总结和记述。 相似文献
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杨树育苗灰斑病及透翅蛾病防治方法 总被引:1,自引:0,他引:1
针对绥化市“三北”防护林关键品种的杨树育苗中病虫害的种类及防治方法进行统计和分析,得出杨树灰斑病及透翅蛾在育苗过程中的表现及防治方法,对提高杨树育苗阶段病虫害防治具有积极意义。 相似文献
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通过建立防治示范区,经过系统的工程治理,使凌源地区的杨树病虫害的发生面积和危害程度大幅下降,为杨树病虫害的防治提供了有价值的经验和模式,达到杨树森林资源的可持续经营和良性发展的目的。 相似文献
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杨树是国营新民市机械林场主要造林树种,因大面积营造用材林,树种单一,植被种类少,杨树病虫害发病率较高,文章针对国营新民市林场杨树速生丰产林主要病虫害的防治成功经验,将主要病虫害的防治技术作一总结,以供从事杨树营林工作的技术人员参考。 相似文献
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近年来,杨树造林面积仍不断扩大。杨树纯林面积的迅速增加,发生大面积杨树病虫害的危险性也在增加,杨树病虫害防治已成为杨树生产的当务之急。 相似文献
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沙洋农场意杨病虫害的防治现状、潜在问题与对策 总被引:2,自引:0,他引:2
本文对沙洋农场10个农业分场的意杨病虫害进行了普查和定点观察。通过病虫害发 生规律和防治技术研究,建立意杨病虫害防治体系与加强营林措施等来控制意杨病虫害的发 生,并对存在的问题和可能潜在的问题提出了自己的看法和设想。 相似文献
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Gao Chang-qi Sun Shou-hui Ren Xiao-guang Song Li-wen Zhang Xiao-jun Dai Wan-zhuo Xiao Hui Zhuang Cui-yun Yi De-guo Zhu Zhen-yu Ren Hai-bo 《林业研究》2001,12(4):263-265
An experimental area of poplar was established in Songyuan of Jilin Province in 1999 for testing the resistance of different
poplar stains toSaperda poplnea. Incidence ofS. poplnea on ten poplar strains were investigated, and the main trophic component of branches of these poplar trees were measured and
analyzed in April 2001. The results showed that there existed significant difference in population size ofS. poplnea on different poplar strains, and the branches of these poplar strains have significant difference in nutrient component and
content of amino acids. The population size of this pest had a significantly positive correlation with dissolvable total sugar
and water content but had no significant correlation with content of total nitrogen and protein nitrogen.
Foundation Item: This paper is part of the subject of integrated control of longicorn of poplar for mainly focusing on pest resistance, which
was supported by Jilin Provincial Forestry Department (96-010).
Biography: Gao Chang-qi (1949-), Research Fellow, Doctorate Tutor, Jilin Provincial Academy of Forestry Science, Changehun 139931,
P. R. China.
Responsible editor: Chai Ruihai 相似文献
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以抗光肩星天牛的南抗杨2号为母本,以抗逆性较强的赤峰美黑为父本进行杂交,选育欧美杨抗光肩星天牛品种。通过封闭环境下的抗虫试验和总酚类物质的含量测定,从实践和理论两方面综合选育了一批对光肩星天牛抗性较强的品种,即K6,K8,K10,K13。它们在抗虫性状上优势突出,抗侵染能力比群众杨提高6.3倍以上,且K6,K8,K13的材性优于群众杨。 相似文献
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江苏杨树烂皮病发生状况调查及化学防治试验 总被引:1,自引:0,他引:1
通过对江苏省杨树烂皮病发生状况调查发现,在新沂,六合和仪征3个地区有杨树烂皮病发生。在调查的4 417株杨树中,平均发病率占11.32%;杨树烂皮病的发生与树种、树龄、地形、土壤、坡向以及虫害的关系均较密切。苗圃内不同药剂、配比度对杨树苗刮皮后的涂药试验发现,吡唑醚菌酯500,1 000,1 500倍液3种配比度的防治效果均在88%以上,嘧菌酯500倍液的防治效果高于80%。说明在苗圃用吡唑醚菌酯1 000倍和1 500倍液防治杨树烂皮病,可以取得良好的防治效果。 相似文献
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Expression of the two coleopteran-resistant proteins (Bt-Cry3A and oryzacystatin I) was detected in the leaves of field-grown transgenic poplar (BOGA-5) in two or three subsequent years. The BOGA-5 contained ~10 μg g(-1) of Cry3A over the individual years with no detection in the control, and protein extracts from BOGA-5 displayed a higher reduction in papain activity (~42%) compared with ~21% in the control. Laboratory feeding experiments showed that the total mortality of the target pest Plagiodera versicolora (Coleoptera, Chrysomelida) larvae fed with BOGA-5 leaves was 76.7%, significantly higher than that of the control (P.05). However, no significant differences were detected in the mortality, exuviation index, pupation rate or adult eclosion rate of the non-target Clostera anachoreta (Lepidoptera, Notodontidae) fed with leaves from transgenic and non-transgenic poplars. Field investigation indicated that the transgenic poplar retained coleopteran insect resistance in the field, suggesting the potential use of the double gene transgenic poplar for pest management in commercial poplar plantations. 相似文献