How to translate text using browser tools
8 November 2020 Effects of Temperature on Growth and Development of the Brown Planthopper, Nilaparvata lugens (Homoptera: Delphacidae)
Lang Yang, Li-Fei Huang, Wei-Li Wang, En-Hai Chen, Hong-Song Chen, Jian-Jun Jiang
Author Affiliations +
Abstract

The brown planthopper, Nilaparvata lugens (Stål), is one of the most serious and destructive pests of rice in Asia. Climate warming in tropical regions and extreme-high- or low-temperature events may become limiting factors affecting the survival and distribution of N. lugens.The effects of continuous high temperature (CHT), discontinuous high temperature (DHT), and abnormal low temperature in summer (ALT) on the growth and development of N. lugens were studied under lab conditions. High temperatures and ALT decreased the survival rate of nymphs (in fourth-instar nymphs, CHT, DHT, ALT, and control survival was 46.67% ± 1.67, 31.67% ± 1.67, 48.33% ± 4.41, and 60.00% ± 2.89, respectively, P < 0.05). ALT also prolonged the development of N. lugens nymphs (in fourth-instar nymphs, ALT and control survival was 6.09 ± 0.193 d and 5.39 ± 0.082 d, respectively, P < 0.05). In fifth-instar nymphs, CHT (2.36 ± 0.064 d, P < 0.05) and DHT (2.34 ± 0.048 d, P < 0.05) had little influence on nymphal development compared with the control (2.25 ± 0.012 d, P < 0.05). The three temperature treatments (CHT, DHT, and ALT) decreased the number of eggs produced (61.33 ± 0.067, 62.67 ± 0.882, and 34.00 ± 0.577, respectively, P < 0.05) compared with the control (68.00 ± 1.000, P < 0.05).The female sex ratio decreased after nymphs were subjected to CHT (65.82% ± 0.771, P < 0.05, in fifth-instar nymphs) and ALT (76.01% ± 1.362, P < 0.05) compared with the control (81.63% ± 1.007, P < 0.05). Adults in CHT (25.30 ± 0.182, P < 0.05) and DHT (14.64 ± 0.238, P < 0.05) consumed significantly more food than the control (11.54 ± 0.181, P < 0.05), but adults in ALT (6.54 ± 0.196, P < 0.05) fed significantly less than the control (11.54 ± 0.181, P < 0.05). Hatching rates of eggs under the three temperature treatments (CHT, DHT, and ALT were 69.57% ± 0.215, 71.29% ± 0.529, and 43.13% ± 0.508, respectively, and were significantly lower (P < 0.05) than the control (78.95% ± 1.000, P < 0.05).These experiments revealed that extreme temperatures can influence the growth and development of N. lugens and may affect its distribution. As such, N. lugens remains a serious pest of rice.

© The Author(s) 2020. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
Lang Yang, Li-Fei Huang, Wei-Li Wang, En-Hai Chen, Hong-Song Chen, and Jian-Jun Jiang "Effects of Temperature on Growth and Development of the Brown Planthopper, Nilaparvata lugens (Homoptera: Delphacidae)," Environmental Entomology 50(1), 1-11, (8 November 2020). https://doi.org/10.1093/ee/nvaa144
Received: 19 May 2020; Accepted: 15 October 2020; Published: 8 November 2020
JOURNAL ARTICLE
11 PAGES

This article is only available to subscribers.
It is not available for individual sale.
+ SAVE TO MY LIBRARY

KEYWORDS
abnormal temperature
global temperature change
growth and development
Nilaparvata lugens (Stål)
RIGHTS & PERMISSIONS
Get copyright permission
Back to Top