| 陈培育，周晓静，阴志刚，赵 倩，申坚定，黄建荣,,2021-2023年南阳地区重要夜蛾科害虫成虫的种群动态[J].环境昆虫学报,(): |
| 2021-2023年南阳地区重要夜蛾科害虫成虫的种群动态 |
| Population dynamics of important noctuidae pests in Nanyang City from 2021-2023 |
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| DOI： |
| 中文关键词: 探照灯诱虫器 夜蛾科害虫 种群动态 |
| 英文关键词:Searchlight trap noctuidae population dynamics |
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| 中文摘要: |
| 为了解南阳地区主要夜蛾科害虫的种群动态，2021-2023年，在河南西南地区利用探照灯诱虫器对夜蛾科害虫成虫进行了诱捕监测。结果表明，3月上旬开始诱集到夜蛾科害虫，7月和8月有两个诱虫量高峰期。2022年诱集夜蛾科害虫37 530头，分别是2021年的2.04倍和2023年的1.72倍。夜蛾科害虫的物种丰富度时间动态大致呈“∧”型，6月和7月是物种最丰富的月份。棉铃虫Helicoverpa armigera、劳氏粘虫Mythimna loreyi、小地老虎Agrotis ipsilon和甜菜夜蛾Spodoptera exigua为诱集到的夜蛾科主要优势种。棉铃虫始见虫日2022年最早，为3月17日，每年的7月和8月出现明显的诱虫量高峰期，月最大诱集量12 382头。劳氏粘虫2021年虫量高峰期为6月上旬，2022年8月上旬和9月中下旬有2个虫量高峰期，2023年虫量高峰期为8月上旬。小地老虎始见虫日2022年最早，为3月9日，3月中旬至4月上旬为第1个虫量高峰期，整体诱集量偏少，日最高诱集量23头。甜菜夜蛾每年7月和8月有2个诱虫量高峰期，年诱集量年际差异较大，2022年共诱集13 306头，分别是2021和2023年的35倍和42倍。本研究为主要夜蛾科害虫的预测预报与和防控提供了依据。 |
| 英文摘要: |
| To understand the population dynamics of important noctuid pests in southwest Henan Province, from 2021 to 2023, a searchlight trap was utilized in Nanyang City, Henan Province, to monitor and trap noctuid pests. The results showed that noctuid pests were first trapped in early March, with two peak infestation periods in July and August. In 2022, a total of 37 530 noctuid pests were trapped, which was 2.04 times that of 2021 and 1.72 times that of 2023. The temporal dynamics of species richness of noctuid pests roughly followed an "∧" shape, with June and July being the months with the richest species diversity. Helicoverpa armigera, Mythimna Loreyi, Agrotis ypsilon, and Spodoptera exigua were identified as the dominant species within the noctuid family. H. armigera was first observed on March 17, 2022. The peak infestation periods of cotton bollworm occurred in July and August each year. Monthly maximum trap of Cotton bollworm was 12 382. The peak infestation of M. loreyi occurred in early June 2021, with two peaks in early August and mid-to-late September 2022, and another peak in early August 2023. A. ypsilon were first trapped on March 9, 2022. The first peak infestation of A. ypsilon occurred from mid-March to early April. However, the overall trap count of A. ypsilon was relatively low, with a daily maximum of 23 individuals. The two peak infestation of S. exigua population occured in July and August each year. There were significant interannual variations in the annual trap counts of the beet armyworm. In 2022, a total of 13 306 individuals were trapped, which was 35 times and 42 times that of 2021 and 2023, respectively. This study provides a basis for forecasting and prevention and control of major noctuid pests. |
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