【摘 要】
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霜霉病是棚（室）黄瓜的主要病害 ,流行时间长 ,为害严重 ,是影响黄瓜高产高效的主要障碍因素之一。据调查 :棚（室）黄瓜霜霉病发生在空气相对湿度８０ %以上和１６～２２℃的温度条件下。此外 ,叶
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霜霉病是棚（室）黄瓜的主要病害 ,流行时间长 ,为害严重 ,是影响黄瓜高产高效的主要障碍因素之一。据调查 :棚（室）黄瓜霜霉病发生在空气相对湿度８０ %以上和１６～２２℃的温度条件下。此外 ,叶片结露时间的长短也是影响霜霉病流行与为害程度轻重的关键因子。那么怎样才能
Downy mildew is shedding (room) the main cucumber diseases, prevalence of time, serious damage, is one of the main obstacles to cucumber yield and high efficiency. According to the survey: shed (room) cucumber downy mildew occurred in air relative humidity above 80% and 16 ~ 22 ℃ temperature conditions. In addition, the length of leaf dew condensation is also a key factor affecting the prevalence and severity of downy mildew. So how can we
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