目前,保护地蔬菜生产进入后期,主要病虫害也逐步向露地蔬菜转移。4月下旬至5月上旬,山东省降水较常年明显偏多,气温较常年偏高,天气条件对蔬菜病害的发生较为有利,对虫害的发生有一定的抑制作用。据省气象台天气预报,5月中、下旬,山东省降水较常年略偏多,气温较常年偏高,对蔬菜病虫害的发生无不利影响。 At present, the vegetable production in protected areas has entered a later stage, and the major pests and diseases have gradually shifted to open-field vegetables. From late April to early May, precipitation in Shandong Province was obviously more than normal, and the temperature was higher than that of normal years. The weather conditions were more favorable to the occurrence of vegetable diseases and had certain inhibitory effect on the occurrence of pests. According to the Provincial Meteorological Observatory’s weather forecast, precipitation in Shandong Province is slightly more than normal in mid-to-late May. The temperatures are higher than normal and have no adverse effect on the occurrence of pests and diseases of vegetables.