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金鱼草是一种常见的切花植物,具有较强的观赏性,但在栽培过程中易发生病虫害。常见的病虫害有疫病、苗腐病、锈病、叶枯病、灰霉病、蚜虫、红蜘蛛、白粉虱与蓟马等,现将其防治方法介绍如下。 疫病 又称茎腐病,主要为害茎和根部。病菌侵入茎基部后,形成淡褐色的病斑,病斑水渍状并缢缩、腐烂,严重时常引起植株枯死。空气湿度大时,可在病斑部长出白色丝状物。 防治方法:1.加强栽培管理,避免连作;及时拔除病株并烧毁,减少侵染菌源,降低发病率。栽植前2—3周,用福尔马林对土壤进行消毒,每平方米用药
Snapdragon is a common cut flower plant, has a strong ornamental, but prone to pests and diseases in the cultivation process. Common pests and diseases are blight, Miao rot, rust, leaf blight, gray mold, aphids, spider mites, whiteflies and thrips, now its prevention and treatment methods are described below. Disease, also known as stalk rot, the main damage stems and roots. After the bacteria invade the base of the stem, a light brown spot is formed. The lesion stains and shrinks, decay, and often causes the plants to die. When the air humidity is high, white filaments can grow out of the lesion. Prevention and treatment methods: 1. Strengthen the cultivation and management, to avoid continuous cropping; timely removal of diseased plants and burned to reduce the source of infection, reduce the incidence. 2-3 weeks before planting, the soil was sterilized with formalin and medication was taken per square meter