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螟卵啮小蜂(Tetrastichus schoenobii Ferriere)在我地区,上半年自然种群弱小,下半年逐渐增加,至后期则显著提高。为了进一步探讨本地啮小蜂的保护和利用,我们进行了几年的研究试验。现将初步结果整理出来,供有关同志参考。 一、啮小蜂成虫的习性 1.羽化和交尾 成虫羽化与温度有一定关系。冬前在10℃以上时,成虫即可羽化,以15℃以上为好;冬后日平均温度
Tetrastichus schoenobii Ferriere In our region, the natural population was weak in the first half of the year, gradually increasing in the second half of the year, and significantly increased in the latter half of the year. In order to further explore the protection and utilization of local bees, we conducted several years of research. The preliminary results are now sorted out for reference by the relevant comrades. First, the behavior of adult bees adults 1. Feathering and mating adult emergence and temperature have a certain relationship. Adult before the winter 10 ℃ or more, can be eclosion to 15 ℃ above is better; winter average daily temperature