The occurrence of rice leaf roller, Cnaphalocrocis medinalis Guenée in the large-scale agricultural production on Chongming Eco-island in China
| Autor: | Li-Ming Cao, Jie-Xian Jiang, Nian-Feng Wan, Xiang-Yun Ji |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
education.field_of_study
Environmental Engineering biology business.industry Population Management Monitoring Policy and Law biology.organism_classification Positive correlation Cnaphalocrocis medinalis Agronomy Agriculture Paddy field Ecosystem Agricultural productivity China business education Nature and Landscape Conservation |
| Zdroj: | Ecological Engineering. 77:37-39 |
| ISSN: | 0925-8574 |
| Popis: | For this study we collected eight years (2006–2013) of data on Chongming Eco-island in China, analyzing the effects of large-scale agriculture on the occurrence of the rice leaf roller, Cnaphalocrocis medinalis Guenee, a dominant foliage feeder in rice ecosystems. We found that the peak of the C . medinalis population was obvious in 2006, 2007 and 2009, with more than 400 adult C . medinalis trapped in a single insecticidal lamp each day and more than 500 individuals per 66.7 m 2 in paddy field. We found a significantly positive correlation between the number of adult C . medinalis trapped in the lamp and the number of moths observed in the paddy field and these two monitoring indicators of C . medinalis were both significantly influenced by average daily temperature. Our study suggests that global warming might promote the occurrence of C . medinalis in large-scale agriculture in the future. |
| Databáze: | OpenAIRE |
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