Age-dependent resistance and tolerance of an invasive tree to above- and belowground herbivore interactions: Implications for invasiveness and biological control

Li, Xiaoqiong; Shen, Shuai; Guo, Wenfeng

doi:10.1016/j.biocontrol.2021.104693

Cited by 1 publication

(1 citation statement)

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“…Chinese tallow tree, Triadica sebifera (L.) Small (Euphorbiaceae) (tallow hereafter), is a perennial woody plant that is widely cultivated as an ornamental and is an important source of raw chemical materials in China (Bruce et al, 1997). Many herbivores attack the leaves of tallow (Zheng et al, 2004); among these, the specialist Gadirtha fusca Pogue (Lepidoptera: Nolidae) and the generalist Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) are two of the major pests of tallow (Li et al, 2020(Li et al, , 2021. The two pests are separated in time during the season: G. fusca appears on tallow in May, whereas S. litura begins to damage tallow earlier, in March (Wang et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Species‐specific herbivore–herbivore interactions and plant responses to sequential attack by multiple herbivores on a perennial woody plant

Yang,

Guo,

Tang

et al. 2023

Entomologia Exp Applicata

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When plants are sequentially attacked by multiple herbivores, herbivore identity and host specialization can greatly influence the patterns of herbivore–herbivore and plant–herbivore interactions. However, how prior herbivory and the resulting induced plant responses potentially affect subsequent herbivores deserves further investigation. In this study, we conducted a common‐garden experiment that manipulated sequential herbivory by the specialist caterpillar Gadirtha fusca Pogue (Lepidoptera: Nolidae) and the generalist caterpillar Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) on Chinese tallow, Triadica sebifera (L.) Small (Euphorbiaceae). We tested how prior exposure to herbivores with different levels of host specialization affected the performance of subsequently arriving con‐ and heterospecifics, as well as plant growth and defense responses under subsequent herbivory. We found that prior exposure to the specialist G. fusca facilitated the performance of subsequent conspecifics, resulting in a significant decrease in the growth (height and stem diameter at ground level) of tallow plants. However, prior exposure to the generalist S. litura did not affect the feeding of subsequent con‐ or heterospecifics or the growth of tallow plants. Sequential herbivory by specialist and generalist conspecifics resulted in lower levels of tannins and flavonoids, respectively, in leaves of tallow plants, whereas sequential herbivory by the two species did not affect the levels of tannins or flavonoids, compared to a single damage event. We conclude that herbivore species‐specific plant responses appear to be more important than herbivore identity or specialization in determining herbivore–herbivore interactions and plant responses to sequential herbivore attack.

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Section: Introductionmentioning

confidence: 99%