Progress in research on the relationship between host plants and the occurrence of the rice leaf folder and the degree of crop damage caused by this pest

Author of the article:LIU Huan；HOU Mao-Lin

Author's Workplace：State Key Laboratory for Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China; 2. Scientific Observing and Experimental Station of Crop Pests in Guilin, Ministry of Agriculture, Guilin 541399, China; 3. Southern Regional Collaborative Innovation Center for Grain and Oil Crops in China, Changsha 410128, China

Key Words：rice leaf folder; host selection; host adaptation; cropping system; integrated management

Abstract：The rice leaf folder, Cnaphalocrocis medinalis (Guenée), is a destructive insect pest of rice that seriously damages yield and quality. Understanding the relationship between host plants and the occurrence of this pest could improve its prevention and management. This paper reviews previous reports on host plant species, host selection, and the effects of these on the rice leaf folder, summarizes the relationship between rice varieties, rice cropping systems and the occurrence of this pest, and discusses the influence of abiotic factors on these relationships. Research perspectives on the relationship between host plants and the occurrence of the rice leaf folder, and the amount of crop damage caused by this pest, are provided. This review promotes further research on the interactions between the rice leaf folder and host plants, and on the environmentally friendly management of this pest.