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Investigation Of Tobacco Pests In Luquan And Jinning County Of Kunming City

Posted on:2014-02-11Degree:MasterType:Thesis
Country:ChinaCandidate:L N LiuFull Text:PDF
GTID:2253330425491414Subject:Crop
Abstract/Summary:PDF Full Text Request
This study systematically introduces the research status, investigation method, plant diseases and insect pests of tobacco grading standards and severity of quantitative assessment methods, in view of the Luquan County, Kunming City, Jinning County tobacco pest status, observation system through a key monitoring points and8auxiliary observation of tobacco diseases and insect pests, basically master the main diseases and two County tobacco pests occurrence characteristics and regularity of May to September of2011: Luquan tobacco pest system observation nursery, disease:virus disease, anthracnose, rust, black shank occurrence, powdery mildew, wild fire disease has not occurred, in which the virus disease, anthracnose, brown spot disease harm is lighter, black shank disease is more serious, the highest incidence of KRK26species incidence rate of71.67%, the disease index was65.15. Insect parts:in addition to beetles, aphids, tobacco budworm, underground pests have occurrence, but harm is lighter. The8census point system Luquan and Jinning two counties, Luquan in2011and Jinning tobacco diseases and insect pests, diseases:virus disease, anthracnose, rust, powdery mildew, black shank, wildfire occurrence harm, including the virus disease, mainly against the heavier, occurring Luquan county black shank Jin county is serious the four census point system, Phytophthora parasitica was the highest average close to30%. Tobacco virus disease occurred in Jinning county is Luquan County, the four census point system of virus disease average maximum near40%., serious. Red star diseases in two counties were moderate occurrence, average occurrence rate of close to15%or so. Two County tobacco anthracnose, blight, powdery mildew were relatively minor. Insect parts:aphids, tobacco budworm, underground insects, beetles have occurrence, but harm is lighter. Flue cured tobacco in Luquan County on the aphid is Jin county occurred slightly heavier, Jinning County tobacco tobacco budworm is Luquan County occurred slightly heavier.By measuring and reporting in Kunming, Luquan, Jinning two counties focus on the development of tobacco mosaic virus (CMV, TMV), dynamics of field tobacco black shank, anthracnose of tobacco, Tobacco Wildfire Disease, tobacco brown spot disease, powdery mildew of tobacco, tobacco aphid, tobacco budworm, beetle, underground pest "six diseases and four insects" the natural occurrence:1, basically mastered the occurrence of tobacco in2011"four field system the six insect pest insect";2, Luquan, Jinning tobacco growing areas in the census data reflects the pests in Kunming tobacco diseases and insect pests occurrence trend and, through the auxiliary forecasting point of pest and disease monitoring and survey in Kunming, Luquan County, Jinning County tobacco diseases and insect pests prevention and cure monitoring, a technical support system, and plays a guiding role for the key, Kunming Luquan County, Jinning County tobacco diseases and insect pests forecasting a good basis of development and application of early warning system.3, based on1key monitoring points and8auxiliary forecasting point of system survey data once every5days, timely analysis of disease and insect pests, timely, comprehensive prevention and control measures for tobacco diseases and insect pests of. Effective control of Luquan County, Kunming city for the Jinning County tobacco diseases and insect pests provide convincing reference.The results of the study, and provides the reliable basis for the field accurately grasp the two County tobacco diseases and insect pests of dynamic, comprehensive prevention and control decision-making provide important reference for the two County tobacco diseases and insect pests.
Keywords/Search Tags:Pest, observation, prevention and cure
PDF Full Text Request
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