防虫治病

• 作 者: 余舒
• 出 处: 中国花卉盆景
• 发表日期: 1999年05期
• 关键词: 紫丁香花 春方 疫病 福尔马林液 介壳虫 球茎 防治方法 北京读者 褐色 叶片边缘

1.武汉读者季春方问: 紫丁香发生花斑病时都有哪些现象?怎么办? 答:紫丁香花斑病又名疫病,多发生在叶片上。据北京林业大学报道,该病从开始发病到结

1 Wuhan quarter Ji-Fang Fang readers Q: What are the symptoms of lilac spot disease? What to do? A: lilac spot disease, also known as blight, occurred in the leaves. According to Beijing Forestry University reported that the disease from the onset to the end