为了探索利用稻纵卷叶螟性引诱剂做发生测报和防治的新途径。我们在毛主席革命路线指引下,在学习无产阶级专政理论的热潮中,因陋就简,以土代洋进行了稻纵卷叶螟性引诱剂的粗提方法和诱杀效果做初步试验,并取得了一些结果。 一、粗提物的制备 1.饲养幼虫 在田间采集4—5龄幼虫装入试管,每个试管可装幼虫2条并放人2—3片禾叶,试管内倒 In order to explore the use of rice leaf roller sex attractant to do a new way to measure and control. Under the guidance of Chairman Mao’s revolutionary line and in the upsurge of studying the theory of proletarian dictatorship, we conducted preliminary tests on crude extraction methods and trapping effects of the trapping agent of the rice leaf-roll moth, result. First, the preparation of crude extract 1 feeding larvae collected in the field of 4-5 instar larvae into the test tube, each tube can hold 2 larvae and release 2-3 tablets of grass leaves, test tube inverted