Leaf disc test used in caterpillar feeding preference study
Author of the article:TANG Qing-Bo1 , WANG Chen- Zhu2**
Author's Workplace：1 Department of Entomology , Henan Agricultural University , Zhengzhou 450002, China; 2 State Key Labor atory of Integrated Management of Pest Insects and Rodents , Institute of Zoology , The Chinese Academy of Sciences , Beijing 100101, China
Key Words：caterpillar, feeding preference, leaf disc test, glass Petri dish
Abstract： Leaf disc test is a universal method in the study of feeding preference of lepidopteran larvae. In this paper, Jermy- lea-f disc- test and its modifications were described. The conditions and limitations of the test were also discussed, including physiological state of the test larvae, the lasting time of larval feeding, the number of discs, and the measurement of disc area.