Su Hongai, Zhao Jin, Yu Haikuo, Jaffar Saleem, Hao Zhenyu, Liang Guangwen, Zeng Ling, Lu Yongyue
Department of Entomology, South China Agricultural University, Guangzhou 510642, China.
Insects. 2025 Apr 15;16(4):419. doi: 10.3390/insects16040419.
The and are economically significant pests that share similar habitats and host plants, leading to intense interspecific competition. To elucidate their competitive interactions, this study investigated the oviposition competition behavior of mixed laboratory populations on five common host plants: pumpkin (), cucumber (), winter melon (), bitter melon () and guava (). The results exhibited that among the five hosts tested, exhibited a significant competitive advantage in oviposition on pumpkin and bitter melon, with its fecundity greater than that of across all ratios. Conversely, showed a clear preference for cucumber. Except at the extreme ratio of 16:4, where laid slightly more eggs than that of , laid more eggs at all ratios. The results can provide a reference for further investigation on the oviposition selectivity and interspecific competition between the adults of and .
[具体害虫1]和[具体害虫2]是具有重要经济意义的害虫,它们共享相似的栖息地和寄主植物,导致激烈的种间竞争。为了阐明它们的竞争相互作用,本研究调查了混合实验室种群在五种常见寄主植物上的产卵竞争行为:南瓜([南瓜学名])、黄瓜([黄瓜学名])、冬瓜([冬瓜学名])、苦瓜([苦瓜学名])和番石榴([番石榴学名])。结果表明,在所测试的五种寄主中,[具体害虫1]在南瓜和苦瓜上产卵具有显著的竞争优势,在所有比例下其繁殖力均高于[具体害虫2]。相反,[具体害虫2]对黄瓜表现出明显的偏好。除了在16:4的极端比例下,[具体害虫1]产卵略多于[具体害虫2]外,在所有比例下[具体害虫2]产卵都更多。这些结果可为进一步研究[具体害虫1]和[具体害虫2]成虫之间的产卵选择性和种间竞争提供参考。