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冬季,大部分花卉苗木病虫将以各种方式进入越冬(或休眠)状态。这一时期各种病虫基本上不活动,移动性小,正是病虫防治的好季节。实践证明,冬季防治的成效直接关系到翌年病虫的发生状况,如果冬季防治措施得力,可大大降低来年病虫的发生及为害程度,收到事半功倍的效果。一、清理苗圃大多数花卉苗木病虫的病原物(菌)或越冬卵,均在苗圃内的枯枝落叶或杂草中越冬,待来年条件适宜时再出来活动。因此,冬季将苗圃内的枯枝落叶和杂草彻底清除销毁,可以大大减少各种病虫源。这对于防治月季、玫瑰、菊花、海棠及柳树等花木的炭
In winter, most flower seedlings pests will enter the wintering (or hibernating) state in various ways. During this period a variety of pests basically not active, mobility is small, it is a good season pest control. Practice has proved that the effectiveness of winter prevention and control is directly related to the occurrence of pests and diseases in the following year. If the measures for winter prevention and control are effective, the incidence and damage of pests and diseases in the coming year will be greatly reduced and the multiplier effect will be achieved with greater efficiency. First, clean up most of nursery flower seedlings pest pathogens (bacteria) or overwintering eggs, nursery litter or weeds in the winter, until the next year when the conditions are appropriate and then out activities. Therefore, in winter nursery litter and weeds completely eliminated and destroyed, can greatly reduce the source of various pests and diseases. This is for the prevention and control of flowers such as rose, rose, chrysanthemum, begonia and willow