延寿县万寿菊生态栽培防治病害生产技术

色用万寿菊抗病性与栽培环境、栽植时间、栽植方式有关。大面积种植时采花期造成田间郁闭长达9个月,雨季湿度过高,雨后风量小是延寿县万寿菊生产中病害重的主要因素。发病初期进行田间诊断和室内培养,镜检病原菌种类,确定了早疫病为万寿菊主要病害,万寿菊细菌性叶斑病为主要潜在病害。经试验认为空一垄密植两垄可解决防病困难问题,对田间通风道利用,提出套作适宜的矮生时差性经济作物,可使花收入不减又增加副产品收入。同时提出建立万寿菊生态栽培体系,对防治威胁性病害流行可起到有效控制作用。

Production System of Marigold on Ecological Cultivation for Protecting Disease in Yanshou County

The resistance of marigold is related to cultivation environment,planting time and planting mode.The field closed for 9 months in harvesting period when large area are planted. The main reasons of the serious disease is that the moisture excessively high during the raining season,and weak wind after raining.The pathogentic fungi were diagnosed in the fields and separated in the laboratory.The resulte show that early blight of marigold is the main disease ,and marigold bacterial leaf spot is a latent disease ,Therefore ecological cultivation system of marigold must be set to control harmfulness disease ,and to interplant with another economic crop.