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十四点负泥虫是北京市密云地区芦笋生产过程中主要害虫之一,也是影响全县芦笋生产、影响农民增收致富的主要制约因素。春季是十四点负泥虫发生危害关键期,如果防治时间不当,防治不及时,将会给整个芦笋生产造成重大损失,为此开展了十四点负泥虫在密云县春季出土危害与温度关系调查,明确了当土壤深5cm、06:00的温度>6.0℃、下午的温度>20.0℃时,十四点负泥虫开始大量出土活动;4月底-5月初芦笋出笋期,10:30-16:30为十四点负泥虫出土活动高峰期,此阶段开展防治效果最为理想。
Fourteen-point negative mud insect pest is one of the main pests in the production process of asparagus in Miyun District, Beijing, and is also a major factor that affects the production of asparagus in the county and the peasants’ income and wealth. Spring is the critical period for the occurrence of negative mud louse at 14 o’clock. If the time for prevention and treatment is not adequate and the prevention and treatment are not implemented in time, it will cause heavy losses to the whole asparagus production. Therefore, the hazard and temperature of fourteen- Relationship survey, clear when the soil depth 5cm, 06:00 temperature> 6.0 ℃, afternoon temperature> 20.0 ℃, fourteen o’clock negative mud began a large number of unearthed activities; end of April - early May asparagus shoots, 10: 30-16: 30 is the peak of the excavated dust flies at 14 o’clock, and the most effective prevention and treatment measures at this stage are the best.