被胎蚁繁殖及防治松毛虫情况旧屋地生产队,以及附近的麻塘田、六橄、大路墙,伏子垌等四个生产队的部分松林共约三千多亩,均布满被胎蚁,最大窝直径33公分,长度57公分。有一株八年生的松树有蚁窝五巢。我们观察一个20×14×12公分大的蚁窝有卵9360粒,蛹1695只,幼虫4636只,成虫7541只。下面是几个标准地的调查材料。 The breeding of fetal ants and the prevention and control of pine caterpillars The production units of the old houses and the four production teams in the nearby production areas of Datangtian, Liuqiu, Great Wall, and Volcanoes are all about 3,000 mu, Termites, the largest nest diameter 33 cm, length 57 cm. There is an eight-year-old pine nest with five nest nest. We observed that a large 20 × 14 × 12 cm ant nest had 9360 eggs, 1695 pupae, 4636 larvae, and 7541 adult worms. Here are a few standard survey materials.