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The previously monotypic genus Aduncothrips Ananthakrishnan from India is newly recorded from China with three new species: A. albus sp. n., A. huapingensis sp. n., A. kailiensis sp. n. The genus Desmidothrips Mound from Australia is synonymized with Aduncothrips, and the Japanese species A. japonicus (Masumoto & Okajima) is newly recorded in China with first description of the male. A key to the seven known species of Aduncothrips is provided. Males in this genus, where known, have maxillary palps 3-segmented with segment II undivided, and tergite IX without claspers.

Potato (Solanumtuberosum L.) is the world's largest non-cereal crop, occupying a position critical for global food security, the fourth largest crop food in China. Due to its location and weather conditions, Yunnan province is the fourth largest potato producer in China with twice yearly production system. However, compared to high number of consumers, potato yield is still low to satisfy the population need. In this study, we have analyzed impacts of three cultivation factors: (1) three cultivation models (T1, T2, and T3), (2) planting density (T1, T2, and T3), (3) soil covering (T1, T2, T3, T4) on plant growth, and yield production. The soil moisture content, temperature, roots growth, stems development, leaf area index, and number-weight of tubers per plant and per plot (g) have significantly increased with commercial yield average of 3tones/mu. This suggests that the combination of these three factors would be a great potato extension model in winter climate zones similar to Yunnan Province. This will contributes in satisfaction of the world population potato consumption need.

[Objectives] To find a sustainable production model for potato at low latitude plateau in winter in Yunnan Province. [Methods] Xuanshu 2 potato variety was tested in prefectures of Yunnan Province. Soil covering experiment was conducted in two trials (open field experiment and green house potted experiment). Impacts of three cultivation factors were analyzed: (i) three cultivation models (T1, T2 and T3), (ii) planting density (T1, T2 and T3), (iii) soil covering (T1, T2, T3, T4) on plant growth, and yield production. [Results] The soil moisture content, temperature, roots growth, stems development, leaf area index, and number-weight of tubers per plant and per plot (g) have significantly increased with commercial yield average of 45 t/ha.[Conclusions] The combination of this method with modern agriculture mechanization should be further popularized and applied in large scale planting in regions with climatic conditions similar winter season in Yunnan Province, so as to make contribution to the satisfaction of the world population potato consumption.