河南漯河小麦和玉米轮作田瓢虫科天敌种类及种群动态
李天奇 , 李天娇 , 陈琦 , 侯艳红 , 陈莉 , 杜梦园 , 师兴凯 , 李世民
山西农业科学 ›› 2024, Vol. 52 ›› Issue (03) : 102 -108.
河南漯河小麦和玉米轮作田瓢虫科天敌种类及种群动态
Species and Population Dynamics of Predatory Ladybugs in Wheat-Corn Rotation Fields of Luohe, Henan Province
为了解河南漯河小麦和玉米轮作模式下瓢虫科天敌种类,明确优势种及发生消长动态,为保护瓢虫资源及开展生物防治提供数据支撑,试验于2018—2022年选取小麦和玉米轮作田定点开展了瓢虫科天敌资源系统调查研究。结果表明,在小麦和玉米轮作田,漯河本地瓢虫科天敌种类主要有异色瓢虫(Harmonia axyridis)、龟纹瓢虫(Propylea japonica)、七星瓢虫(Coccinella septempunctata)和红环瓢虫(Rodolia limbata)。红环瓢虫为漯河瓢虫科新记录种,异色瓢虫和龟纹瓢虫为优势种;不同作物类型、不同年份,优势种不同。由发生动态可知,河南漯河小麦和玉米轮作田瓢虫科天敌有3个高峰期,分别在5月上旬、7月和8月下旬至9月下旬,其中第3个高峰期瓢虫数量最多、占监测总虫量的69.20%,高峰日最高百株虫量达336头。麦田瓢虫始见期最早在3月上旬,最晚在4月下旬,玉米收获前玉米植株上尚有大量瓢虫存在。
To understand the predatory ladybug(Coccinellidae) species in the wheat-corn rotation system in Luohe, Henan province, and to clarify the dominant species and their population dynamics, and to provide baseline data to support the conservation of ladybug resources and the development of biological control, in this study, a systematic survey of predatory ladybugs in a fixed spot of the wheat-corn rotation field in Luohe from 2018 to 2022. The results showed that in the wheat-corn system, the species of the local predatory ladybug family mainly included Harmonia axyridis(Pallas), Propylea japonica (Thunberg), Coccinella septempunctata Linnaeus, and Rodolia limbata Motschulsky. R. limbata was a newly recorded species of ladybugs in Luohe. H. axyridis and P. japonica were the dominant species, the dominant species differed among crops and years. According to occurrence dynamic, the predatory ladybugs in the wheat-corn fields in Luohe had three peak periods of occurrence: early May, July, and late August to late September. The third peak period had the highest number of ladybugs, accounting for 69.20% of the monitoring total, and the number of ladybugs surveyed on the peak day was as high as 336 individuals per 100 plants. Ladybugs appeared in wheat fields as early as March and as late as April, a large number still remained on the corn plants until harvest.
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国家天敌等昆虫资源数据中心惠济观测实验站项目(ZX09S170100)
财政部和农业农村部:国家现代农业产业技术体系(CARS-03)
河南省科技攻关计划项目(222102110201)
河南省现代农业产业技术体系(HARS-22-01-Z4)
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