| Title: | Improvement of Bemisia tabaci (Hemiptera: Aleyrodidae) Fitness on Chinese Kale upon Simultaneous Herbivory by Plutella xylostella (Lepidoptera: Plutellidae) |
| Author(s): | Jiang J; Xu LL; Yu WY; Zhang SZ; Liu TX; |
| Address: | "State Key Laboratory of Crop Stress Biology for Arid Areas, Northwest A&F University, Yangling 712100, China. Key Laboratory of Entomology and Pest Control Engineering, College of Plant Protection, Southwest University, Chongqing 400716, China" |
| ISSN/ISBN: | 2079-7737 (Print) 2079-7737 (Electronic) 2079-7737 (Linking) |
| Abstract: | "Bemisia tabaci and the diamondback moth (DBM), Plutella xylostella, are two major cosmopolitan pests that often occur together and cause severe economic losses to cruciferous crops. However, little is known about how they interact with each other. To determine the effects of defense responses induced by the two pests on the biology and population dynamics of the herbivores, we studied the performance and fitness of B. tabaci and DBM when they damaged Chinese kale simultaneously and in different orders. The results showed that DBM pre-infestation shortened the developmental duration, increased longevity, oviposition days, and fecundity of B. tabaci. Meanwhile, the intrinsic rate of increase (r), net reproductive rate (R(0)) and finite rate of increase (lambda) of B. tabaci increased significantly with dual infection as compared with only B. tabaci infestation. In contrast, B. tabaci pre-infestation reduced the longevity and oviposition days of DBM, but the population parameters r, R(0), and lambda did not vary significantly compared with only DBM infestation. Thus, co-infestation of B. tabaci and DBM was beneficial to the performance of the B. tabaci population. The present findings highlight that B. tabaci has become a dominant competitor when mixing with DBM on the same host plant" |
| Keywords: | cotton whitefly diamondback moth fitness heterospecific interaction performance plant-mediated insect interaction population dynamics; |
| Notes: | "PubMed-not-MEDLINEJiang, Jun Xu, Li-Li Yu, Wen-Yuan Zhang, Shi-Ze Liu, Tong-Xian eng 2021NY-038/Key Research and Development Program of Shaanxi/ 31470484/Natural Science Foundation of China/ Switzerland 2022/01/22 Biology (Basel). 2022 Jan 4; 11(1):72. doi: 10.3390/biology11010072" |
