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S-烯虫酯实仓应用防效评估及对稻谷品质的影响

引用本文：王沁园,薛丁榕,穆海亮,郑妙,方治,黄呈兵,伍祎.S-烯虫酯实仓应用防效评估及对稻谷品质的影响.植物保护学报,2025,52(6):1438-1446

DOI：10.13802/j.cnki.zwbhxb.2025.2025077

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作者	单位	E-mail
王沁园	国家粮食和物资储备局科学研究院, 粮食储运国家工程研究中心, 北京 100037
薛丁榕	国家粮食和物资储备局科学研究院, 粮食储运国家工程研究中心, 北京 100037
穆海亮	浙江中保粮生物科技有限公司, 台州 317599
郑妙	浙江中保粮生物科技有限公司, 台州 317599
方治	张家港市粮食产业发展有限公司, 江苏张家港 215699
黄呈兵	福建省储备粮管理有限公司仙游直属库, 莆田 351253
伍祎	国家粮食和物资储备局科学研究院, 粮食储运国家工程研究中心, 北京 100037	wuyi@ags.ac.cn

中文摘要:为明确S-烯虫酯对储粮害虫的控制效果，在高大平房仓内分别采用粮面施药和全仓施药两种方法对稻谷进行防护处理，均通过皮带输送机利用多角度超低容量喷施设备施药，分析两种施药方法在害虫防治、施药均匀性及持效性和稻谷品质保持方面的效果。结果表明：施药后30 d，两种施药方法处理下4种代表性储粮害虫谷蠹Rhyzopertha dominica、玉米象Sitophilus zeamais、赤拟谷盗Tribolium castaneum和长角扁谷盗Cryptolestes pusillus的死亡率均达97.6%以上，显著优于未施药对照组。在均匀性方面，全仓施药后对距粮面0.2、3.0和5.8 m三层高度共24个检测点的检测发现，87.5%的粮食上药剂浓度达到喷施浓度，且不同深度和同一层高度不同检测点粮食上的药剂浓度均匀，无显著差异；粮面施药后对距粮面0.2、1.0和2.0 m三层高度共24个检测点的检测发现，药剂浓度从表层到粮堆内部依次减少，说明全仓施药的均匀性优于粮面施药。在持效性方面，采用8.50 mg/kg的浓度全仓施药后18个月，稻谷出仓时药剂浓度不低于1.08 mg/kg，仍维持在S-烯虫酯的有效杀虫浓度范围内；且全仓施药后18个月的储粮周期内基本无害虫发生，粮面施药在施药后6个月内可起到较好的防护效果，但在越夏时局部发生虫害，需结合局部杀虫处理技术进行害虫控制。在粮食品质方面，两种施药处理与硫酰氟熏蒸对照组均无明显差异。表明S-烯虫酯全仓施药在防虫效果、均匀性、持效性以及安全性方面具有明显优势，可以作为储粮害虫综合防控的有力手段，助力粮食行业化学药剂减量。

中文关键词:S-烯虫酯实仓应用全仓施药粮面施药害虫防治稻谷品质

Evaluation of the efficacy of S-methoprene in practical grain storage and its effects on rice quality

Author Name	Affiliation	E-mail
Wang Qinyuan	National Engineering Research Center for Grain Storage and Transportation, Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
Xue Dingrong	National Engineering Research Center for Grain Storage and Transportation, Academy of National Food and Strategic Reserves Administration, Beijing 100037, China
Mu Hailiang	Zhejiang Zhongbaoliang Biotechnology Co., Ltd., Taizhou 317599, Zhejiang Province, China
Zheng Miao	Zhejiang Zhongbaoliang Biotechnology Co., Ltd., Taizhou 317599, Zhejiang Province, China
Fang Zhi	Zhangjiagang Grain Industry Development Co., Ltd., Zhangjiagang 215699, Jiangsu Province, China
Huang Chengbing	Xianyou Depot, Fujian Grain Reserves Co., Ltd., Putian 351253, Fujian Province, China
Wu Yi	National Engineering Research Center for Grain Storage and Transportation, Academy of National Food and Strategic Reserves Administration, Beijing 100037, China	wuyi@ags.ac.cn

Abstract:To evaluate the control efficacy of S-methoprene against stored-grain pests, protection treatments were conducted in large flat warehouses using two application methods: grain-surface treatment and full-warehouse treatment. Both methods applied the insecticide with a multi-angle ultra-lowvolume sprayer mounted on a belt conveyor. Their performance was assessed in terms of pest control, application uniformity, persistence, and the maintenance of rice quality. The results showed that 30 days after treatment, the mortality of four representative stored-grain pests, Rhyzopertha dominica, Sitophilus zeamais, Tribolium castaneum, and Cryptolestes pusillus, reached at least 97.6% under both application methods, significantly higher than the untreated control. Regarding uniformity, in the full-warehouse treatment, 87.5% of grain samples collected from three depth layers（0.2, 3.0, and 5.8 m; 24 sampling points in total） reached the target concentration, and pesticide concentrations showed no significant variation across depths or sampling points at the same height. In contrast, in the surface-treatment method, pesticide concentrations gradually decreased from the surface toward the interior, indicating superior uniformity with full-warehouse application. In terms of persistence, when S-methoprene was applied at 8.50 mg/kg using the full-warehouse method, the pesticide concentration remained no lower than 1.08 mg/kg at warehouse exit 18 months, still within the effective insecticidal range. Almost no pest occurrence was observed during these 18 months. Surface application provided good protection within the first six months; however, localized infestations occurred during summer, requiring supplementary local treatments. No significant differences in rice quality were observed among either S-methoprene treatments or the sulfuryl fluoride fumigation control. Overall, full-warehouse application of S-methoprene exhibits distinct advantages in efficacy, uniformity, persistence, and safety, and can serve as an effective approach for integrated stored-grain pest management while promoting reduced pesticide use in the grain industry.

keywords:S-methoprene warehouse application full-warehouse application surface application pest control rice quality

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