Affiliation:
1. CoInnovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University , 210037, Nanjing , China
2. College of Forestry, Nanjing Forestry University , 210037, Nanjing , China
Abstract
Abstract
In China, Hyphantria cunea (Drury) is an invasive phytophagous pest; it attacks nearly all species of defoliated trees. To develop integrated pest management programs (IPM) for H. cunea, we need to ensure the availability of insects by mass-rearing them on artificial diets under laboratory conditions. This study compared the growth characteristics, nutritional indices, growth indices, and digestive enzyme activity of insects reared on Pterocarya stenoptera C.DC (Fagales: Juglandaceae), the Chinese wingnut, and an artificial diet. We also investigated the correlation between diet components and growth indices using principal components analysis and Pearson correlation analysis. We found that mass-rearing of H. cunea on an artificial diet was feasible. It led to a shorter developmental period, with heavier larvae and pupae than natural diets. The principal components analysis indicated that the growth indices and α-Amylase were significantly positively associated with PC1, which explained 82.45% of the total data variability. Pearson correlation analysis showed a significant correlation between digestion, absorption parameters, and growth. Developing a mass-rearing program to produce H. cunea on an artificial diet will be valuable for improving IPM strategies. Understanding the mechanism of the responses of phytophagous insect populations to anthropogenic diet regulation can provide new ideas and methods for pest control.
Funder
Forestry Science and Technology Innovation and Promotion Project in Jiangsu Province
Science and Technology Project of Shanghai Landscaping and City Appearance Administrative Bureau
National Key Research and Development Program of China
Publisher
Oxford University Press (OUP)
Subject
Insect Science,Ecology,General Medicine
Cited by
4 articles.
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