Yun Yang, Yan Wang, Guangzu Du, Wenqian Wang, Ganlin Sun, Bin Chen, Limin Zhang
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引用次数: 0
Abstract
The South American tomato leaf miner, Tuta absoluta (Lepidoptera: Gelechiidae) is a worldwide devastating insect pest of tomato. The pest has also been found to be damaging potato, but little is known about the performance on potato. To evaluate the adaptability of T. absoluta on potato and screen the resistant cultivars, the performance of T. absoluta was determined on four widely-grown potato cultivars (Qingshu No. 9 [QN9], Lishu No. 6 [LN6], Hezuo No. 88 [HN88] and Mila [MI]) in China using the age-stage two-sex life table, compared with tomato cultivar (Shouhe) as a control. The activity of several enzymes in the larvae were also determined. We found that T. absoluta could complete life cycles on the leaves and tubers of four potato cultivars, but was less harmful to tubers. The intrinsic rate of increase was the least on leaves of HN88, higher on leaves of QN9, LN6 and MI, and highest on tomato leaves. The lowest and highest fecundity of T. absoluta was recorded on the cultivar HN88 tubers and MI leaves, respectively. Moreover, the lowest pupal weight of T. absoluta was observed on the cultivar of QN9 leaves. The enzyme activities of the larvae feeding on difference cultivars did not show a clear pattern. In conclusion, T. absoluta showed high damage potential to potato, with the highest and lowest fitness to the potato cultivar MI and HN88, respectively. Considering bottom-up effects as a key driver in integrated pest management (IPM), the cultivars HN88 and QN9 could be preferably used in the IPM.
期刊介绍：
Its scope covers all aspects of basic and applied research dealing with insects and more broadly with arthropods inhabiting wild, agricultural and/or urban habitats. The journal also considers research integrating various disciplines and issues within the broad field of entomology and ecology.
Entomologia Generalis publishes high quality research articles on advances in knowledge on the ecology and biology of arthropods, as well as on their importance for key ecosystems services, e.g. as biological control and pollination. The journal devotes special attention to contributions providing significant advances (i) on the fundamental knowledge and on sustainable control strategies of arthropod pests (including of stored products) and vectors of diseases, (ii) on the biology and ecology of beneficial arthropods, (iii) on the spread and impact of invasive pests, and (iv) on potential side effects of pest management methods.
Entomologia Generalis welcomes review articles on significant developments in the field of entomology. These are usually invited by the editorial board, but proposals may be sent to the Editor-in-Chief for preliminary assessment by the editorial board before formal submission to the journal. The journal also considers comments on papers published in Entomologia Generalis, as well as short notes on topics that are of broader interest.
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