数字农科院2.0

十种地膜对华北大黑鳃金龟的物理阻隔效果

文献类型： 中文期刊

关键词： 华北大黑鳃金龟;;地膜;;物理阻隔;;害虫绿色防控;;入土;;出土;;产卵

期刊名称：植物保护学报

ISSN： 0577-7518

年卷期： 2025 年

页码：

收录情况： 北大核心（2023版） ; ; CSCD（2025-2026年度） ; ; 科技核心（2024版） ; ; 农林核心（2024版）

摘要： To assess the physical barrier potential of mulch against Holotrichia oblita, 10 different types of mulch were evaluated in laboratory trials for their impacts on H. oblita adult escape rate, entry rate, survival rate, and egg production, with field validation. Laboratory results showed that during the first emergence period, the adult emergence rates under all mulch treatments were significantly lower than those of the control, with 1.5 S (15 μm) white mulch and 1.4 S (14 μm) black mulch exhibiting the best barrier effects. However, after three emergence periods, the barrier effects were largely lost. The results of the entry rate tests were similar to those of the escape rate tests. Mulch treatments had no significant effect on adult survival, and survival rates remained above 90% after three emergence periods. Continuous coverage with 1.5 S white mulch and 1.4 S black mulch for three weeks significantly reduced the number of eggs in the treatment plots compared to the control, whereas other mulch types showed no significant effect. Field trials revealed significantly lower average grub densities and percentage of pods killed in mulch-treated plots compared to the control plots, with an average reduction of 84.30% in grub density and 10.20% decrease in the average percentage of peanut pods killed. These findings demonstrate that mulching can disrupt H. oblita's emergence and entry rhythms and oviposition behavior, effectively suppressing population growth and damage occurrence. The results provide both empirical data and theoretical support for developing eco-friendly control strategies against H. oblita.

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