| 珠海非洲菊疫病的鉴定和防治 |
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| 引用本文： | 谢为龙,谭群英,李冠雄,张建军.珠海非洲菊疫病的鉴定和防治[J].植物保护,1999,25(3):13-15. |
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| 作者姓名： | 谢为龙 谭群英 李冠雄 张建军 |
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| 作者单位： | 拱北动植物检疫局 |
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| 摘 要： | １９９６年，珠海非洲菊生产基地非洲菊出现萎蔫症状，大量植株死亡，感病品种年发病率达４０％～５０％。经病情调查和病原菌分离鉴定明确，该病由ＰｈｙｔｏｐｈｔｈｏｒａｃｒｙｐｔｏｇｅａＰｅｔｈｙｂｒｉｄｇｅ＆Ｌａｆｅｒｔｙ和Ｐ．ｃａｃｔｏｒｕｍＳｃｈｒｏｔｅｒ所致，前者为主要病原。发病程度与温度、田间湿度及品种抗病性密切相关。室内药剂筛选试验表明，甲霜灵－锰锌抑菌效果最好；杀毒矾次之。田间选种抗病品种、作高畦、改喷灌为滴灌、拔除病株、药剂防治等措施，防效较好。
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| 关 键 词： | 非洲菊 疫病 鉴定 防治 |
| 修稿时间： | 1998-10-26 |
Identification and control of Phytophthora blight of Gerbera jamesonii in Zhuhai. |
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| Xie WeilongTan QunyingLi GuanxiongZhang Jianjun.Identification and control of Phytophthora blight of Gerbera jamesonii in Zhuhai.[J].Plant Protection,1999,25(3):13-15. |
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| Authors: | Xie WeilongTan QunyingLi GuanxiongZhang Jianjun |
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| Institution: | Gongbei Animal and Plant Quarantine Bureau;Zhuhai519020 |
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| Abstract: | In 1996, whole wilting plants of Gerbera jamesonii were observed in Zhuhai, and the disease spreads rapidly. The pathogens were identified as Phytophthora cryptogea Pethybridge & Lafferty and P. cactorum Schorter, and the former was major pathogen. The disease development was closely related to temperature, field humidity and resistance of varieties. Metalaxyl and mancozeb was the best one of tested fungicides to inhibit the growth of P. cryptogea. Methods of planting resistant varieties, eliminating disease plants in time, high bed planting, drop irrigation instead of spray irrigation, and using fungicides, could be used for controling the disease. |
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| Keywords: | Gerbera jamesonii Phytophthora blight identification control |
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