Mechanism of rice variety resistance to the yellow stem borer,Scirpophaga incertulas (Walker)

摘要

Yellow stem borer (YSB) , Scir-pophaga incertulas (Walker) has become the main rice insect pest once again along the Changjiang River since 1990s. Unfortunately, no rice variety with resistance to YSB has been reported so far. Japonica Zhen-dao 2 with moderate resistance to YSB was found. In 10 rice varieties with different resistance levels, YSB individuals showed distinct developmental rates, and the asynchronous development even occurred in the same rice variety. In