Growth and Reproduction of Cnaphalocrocis medialis Fed on Improved Artificial Diet
LI Chuan-ming 1,#;XU Jian1,#; YANG Ya-jun2;QI Jian-hang1; ZHENG Xu-song2 ;WANG Yan1;LIU Qin1,*;LU Zhong-xian2, *
1Jiangsu Lixiahe Institute of Agricultural Science, Yangzhou 225007, China; 2Institute of Plant Protection and Microbiology, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; # These authors contributed equally to this paper; *Corresponding authors, E-mail: email@example.com; firstname.lastname@example.org
The growth and reproduction of rice leaffolder, Cnaphalocrocis medialis, fed on an artificial diet were studied. The results showed that larvae were able to grow and pupate fed on the artificial diet. Durations of larva and pupa were 28.1 d and 10.1 d, respectively, 6.1 d and 1.7 d longer compared with that reared on rice leaves. Number of ovipositions were 41.6 per female, 26.2 percent higher than that fed on rice leaves. the survival rate of larva followed a descent mortalityage function, and was not significantly different from that of larva fed on rice leaves. The net reproductive rate, intrinsic rate of increase and finite rate increase of population were 17.6928, 0.0884 and 1.0942. The mean generation time and population doubling time were prolonged for 4.9 d and 1.3 d in comparison with those of larvae fed on rice leaves. The population trend index was 3.26, indicating an ascent trend of the population of Cnaphalocrocis medialis fed on artificial diet.