沈阳地区京桃主要病虫害的种类及其防治技术的研究

对沈阳地区京桃病虫害种类进行详细调查结果显示：在京桃树木上共发现13种病虫害，其中病害9种，可分为真菌类、细菌类、缺素类3大类，真菌类病害是京桃的主要病原；虫害4种，蚜类、蚧类、天牛类、枯叶蛾类各1种，属于枯叶蛾类的黄褐天幕毛虫危害最重。京桃13种病害的症状和虫害的危害状都有各自典型的特征，易于鉴定和区分京桃病虫害的控制需严格把握以下几点：培育健康苗或栽植壮苗；提高自身的抗病能力；选择土壤条件好的地段、合理控制水分、清除病树并处理；发病后用70％甲基托布津可湿性剂1/1000～1/800倍液防治。

Main Plant Diseases and Insect Pests of Beijing Peach in Shenyang District and Prevention Measures

The main pest species of Beijing peach in Shenyang district are researched detailedly, the results show that： 13 plant diseases and insect pests are found in Beijing peach trees, which including 9 diseases pests and 4 insect pests. The 9 diseases pests can be divided into fungi, bacteria and element missing, and fungi pest is the main cause of disease of Beijing peach; the insect pests are aphid, scale insect, sawyer beetles, and lappet moth, in which the tent caterpillar, Lasiocampidae, is the most endangerment. The symptom and morphology of each of the 13 plant diseases and insect pests of Beijing peach have its own characters, and it is easy to be identified. To control the plant diseases and insect pests of Beijing peach, the following points should be hold strictly： Cultivating the health seedling or planting the strong sprout; Improving the plant＇s resistance against the diseases; Choosing good location of soil condition, controlling the moisture rationally, and removing the disease tree and disposing it; curing the infected tree with 800 1 000 times liquor of thiram thiophanate-methyl sulphur.