１９９６～１９９７年，在大兴安岭加格达奇科研技术推广站兴安落叶松种子园内，研究了球果花蝇（Ｓｔｒｏｂｉｌｏｍｙｉａｓｐｐ）的生物、生态学特性，并用抑食肼进行了防治试验。花蝇种团及其优势种黑胸球果花蝇（Ｓｍｅｌａｎｉｏｌａ）成虫的羽化盛期为５月中旬，在４月下旬及５月上旬的旬平均气温较高的年份成虫羽化期短，羽化集中。产卵盛期为５月中旬，幼虫孵化盛期为５月下旬至６月初。从６月上、中旬开始，幼虫陆续发育成熟，雨天脱果落地化蛹，６月下旬为化蛹盛末期。研究了卵的有效积温ｋ（日度）和发育起点温度ｃ（℃），结果为：ｋ＝２７８８±３４９，ｃ＝１０８６±０６８。用无公害新型药剂抑食肼油剂进行了林间幼虫防治试验，１％、２％抑食肼油剂分别使种子受害率降低１９８２％及３７９２％。 From 1996 to 1997, the biological and ecological characteristics of Strobilomyias sp. Were studied in the Larix gmelinii seed orchard at Jiagedaqi Scientific and Technological Extension Station, Daxinganling. In the mid-May, the adult feathers of S. melaniola, the dominant species of flower flies and their predominant species, had a shorter eclosion period in mid-ten days of April and early May, Feather concentrated. The spawning period of mid-May, the larvae incubation period of late May to early June. From the beginning of June and the middle of the year, the larvae develop in succession one after another. The effective accumulated temperature k (day) and developmental start temperature c (℃) of the eggs were studied. The results were as follows: k = 27.88 ± 3.49, c = 10.86 ± 0.68. The experiment of prevention and treatment of forest larvae was carried out by using the new non-polluting agent of hydrazine, and the damage rate of seed by 1% and 2% of hydrazine oil was reduced by 1982% and 3792% respectively.