1980年9月中旬,在广东省恩平县的水稻上,发现隐纹稻苞虫Pelopidas mathiasFabricius幼虫发生一种病毒病。用其病原体在室内对两种稻苞虫进行重复感染和交叉感染试验,结果表明,这种病原体只感染隐纹稻苞虫幼虫,不感染直纹稻苞虫幼虫。隐纹稻苞虫幼虫感病后,初期症状不明显,一般照常取食,在稻叶上结苞;随着病情的发展,幼虫表皮逐渐失去光泽,食欲减退,对刺激反应迟钝,发育受阻; In mid-September 1980, on a rice plant in Enping County, Guangdong Province, a viral disease was found in Larvae of the Larvae of the Larvae of the Larvae of the Perennial Insect, Pelopidas mathias. The pathogen in the laboratory of two kinds of rice shell insects repeated infection and cross-infection test results show that this pathogen only infects the larvae of insects, insects do not infect rice borer larvae. With the development of the disease, the larvae epidermis gradually lose its luster, loss of appetite, slow to the stimulus, and the development is blocked; with the development of the disease,