Abstract:
【Objective】 To provide reference for scientific identification and control of potato ladybug in potato planting area of Xinjiang.
【Methods】 In this paper, the occurrence, distribution and harm of ladybird potato in Xinjiang were identified for the first time, and its morphological characteristics were described. Combined with literature review, the prevention and treatment strategies and measures were preliminarily proposed.
【Results】 Henosepilona Vigintioctomaculata, which occurred in an area of 61.2×10 hm
2, was discovered in Xinjiang for the first time in June 2020 in Qapurchal Xibo Autonomous County, Yili Prefecture. The main hosts were
Solanum tuberosum L.,
Solanum lycopersicum and
Solanum nigrum L., etc. Among them, the damage to potato was the most harmful, and the average occurrence rate of adult was 5, and the highest was 27.
【Conclusion】 The potato ladybug is first found in Xinjiang. It has a high risk of spreading and poses a potential threat to the development of the potato planting industry in the area, so it is necessary to strengthen its identification and prevent and control them earlier.