草地貪夜蛾在江蘇地區(qū)的發(fā)生特征及主要影響因素

doi:10.12306/2023jms.0011

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草地貪夜蛾在江蘇地區(qū)的發(fā)生特征及主要影響因素
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                        10.12306/2023jms.0011
                    
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中圖分類號(hào):S165.28
基金項(xiàng)目:江蘇省氣象局科研基金資助項(xiàng)目（KZ202002）；重大農(nóng)業(yè)害蟲草地貪夜蛾監(jiān)測(cè)預(yù)警與綠色防控技術(shù)研發(fā)項(xiàng)目（BE2020349）

Study on the spatiotemporal characteristics and main influencing factors of spodoptera frugiperda in Jiangsu Province

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基于2019—2022年江蘇草地貪夜蛾蟲情監(jiān)測(cè)資料，分析了草地貪夜蛾的時(shí)空發(fā)生特征及其影響因素。結(jié)果表明：草地貪夜蛾發(fā)生區(qū)域主要集中在淮河以南地區(qū)，東部沿海的鹽城和南通兩地為重發(fā)區(qū)，2020年是近4 a來(lái)重發(fā)面積最大的年份；草地貪夜蛾在江蘇主要危害玉米，春玉米、常規(guī)夏玉米、遲播夏玉米上均有發(fā)生，其中遲播夏玉米發(fā)生程度最重，多為集中連片發(fā)生，最高百株蟲量在54.7~125.6頭，最高被害株率均在93.0%以上；成蟲遷入江蘇的時(shí)段主要是5—9月，其中6—7月為成蟲遷入峰期；草地貪夜蛾重發(fā)區(qū)、遷入峰期等與玉米種植情況、遷飛規(guī)律、大氣環(huán)流、氣象條件等因素密切相關(guān)?？蔀榫珳?zhǔn)制定防控策略和監(jiān)測(cè)預(yù)警提供科學(xué)依據(jù)。

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Based on the monitoring data of spodoptera frugiperda in Jiangsu Province from 2019 to 2022, the temporal and spatial occurrence characteristics of spodoptera frugiperda and its main influencing factors were analyzed. Results show that the spodoptera frugiperda was mainly concentrated in the south of the Huaihe River, and Yancheng and Nantong were the areas with serious occurrence of spodoptera frugiperda. The year with the largest recurrence area of the spodoptera frugiperda was 2020 in the past four years. It mainly harms maize in Jiangsu, including spring maize, conventional summer maize and late sowing summer maize. The late sowing summer maize had the most serious occurrence, most of which occurred in a concentrated and continuous manner. The maximum number of insect pests per hundred plants ranged from 54.7 to 125.6, and the maximum percentage of damaged plants was above 93.0%. The migration period of adults to Jiangsu was mainly from May to September, of which June to July was the peak period for adults to migrate. The serious occurrence area and migration peak period of the spodoptera frugiperda are closely related to corn planting, migration rules, atmospheric circulation and meteorological conditions. The research can provide scientific basis for formulating accurate prevention and control strategies and monitoring and early warning.

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徐敏,張海波,徐憶菲,郭安紅,楊榮明,高蘋.草地貪夜蛾在江蘇地區(qū)的發(fā)生特征及主要影響因素.氣象科學(xué),2023,43(6):790-797 XU Min, ZHANG Haibo, XU Yifei, GUO Anhong, YANG Rongming, GAO Ping. Study on the spatiotemporal characteristics and main influencing factors of spodoptera frugiperda in Jiangsu Province. Journal of the Meteorological Sciences,2023,43(6):790-797

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收稿日期:2023-01-16
最后修改日期:2023-01-30
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在線發(fā)布日期: 2024-02-01
出版日期: 2023-12-15

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