摘要
经过深入的研究得出的结论:在7月下旬至9月上旬,由于扦插密度、地形地貌、降雨量以及管理水平的变化,使得青杨叶锈病的发生频繁,而且其中最重要的侵染来源就是夏孢子。因此,采取有效的措施可以有效减少该疾病的发生,从而改善苗木的品质。在育苗期间通过减少植株的密集,并在疾病初期采取适当的化学预防措施,能够大大减少植物的损伤程度以及患者的痛苦。在使用的各种药剂中,29%石硫合剂1000倍液的预防作用是最好的,其预防作用的发生率和患者的痛苦指数都是5%,比未使用这种药剂的植物的患者的痛苦指数Ⅲ和Ⅳ都要小(CK),其差距都非常明显。
Through in-depth research,we concluded that the leaf rust of poplar poplar occurred frequently from late July to early September due to the change of cutting density,landform,rainfall and management level,and the most important source of infection is summer spores.Therefore,take effective measures,can effectively reduce the occurrence of the disease,so as to improve the quality of seedlings.By reducing plant density during seedling development and taking appropriate chemoprophylaxis early in the disease,the extent of plant damage and patient suffering can be greatly reduced.Among the various drugs used,the prevention effect of 29%stone sulfur mixture 1000 times liquid was the best.The incidence of prevention effect and the pain index of the patients were both 5%,which was lower than the pain indexⅢandⅣof the patients who did not use this medicine(CK).The difference was very obvious.
作者
童瑶
TONG Yao(Bailong River Chuagangliang Provincial Nature Reserve Management Center,Longnan 746000,Gansu,China)
出处
《林业科技情报》
2024年第4期149-151,共3页
Forestry Science and Technology Information
