Vapour heat as a potential means of controlling insects in stored dates.

IF 1.6 3区农林科学 Q2 ENTOMOLOGY Bulletin of Entomological Research Pub Date : 2025-02-01 DOI:10.1017/S0007485324000877

Rasha A Zinhoum, Amira A K H Negm, W K M El-Shafei

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Abstract

Post-harvest treatments are very critical in accepting the exported dates. However, stored dates are attacked by a wide range of stored pests causing serious damage to yield. Therefore, this study investigated the efficacy of treating stored dates variety Siwi with vapour heat on almond moth Ephestia cautella (Walker), the Indian meal moth Plodia interpunctella (Hübner), the saw-toothed grain beetle Oryzaephilus surinamensis Linnaeus, the red flour beetle Tribolium castaneum (Herbst), and the drugstore beetle Stegobium paniceum (L.) of stored dates. Additionally, the effects of vapour heat on the quality and microbial load of treated dates were examined. The tested insects were infested and randomly distributed to eight positions inside a vapour heat chamber at 46.5°C and 95% relative humidity for 30 min. The results showed that a 120 cm height from the vapour heat source led 100% mortality in all tested insects. Furthermore, the treatment of vapour heat had a great efficacy to eliminate infestations. Meanwhile, the vapour heat treatment slightly reduced the microbial load of stored dates, and non-significantly (P ≤ 0.05) affected the chemical and physical characteristics of the stored dates. Therefore, vapour heat is a safe and environmentally friendly insect pest control alternative for exported dates.

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蒸汽热作为一种潜在的控制贮藏枣中昆虫的手段。

收获后的处理对于接受出口的枣来说是非常关键的。然而，储藏的枣子受到各种储藏害虫的侵害，对产量造成严重损害。因此，本研究研究了蒸热处理储藏枣品种Siwi对储藏枣的杏仁蛾Ephestia cautella （Walker）、印度粉蛾Plodia interpunctella （h bner）、锯齿谷甲虫Oryzaephilus surinamensis Linnaeus、红粉甲虫Tribolium castaneum （Herbst）和药库甲虫Stegobium panicum （L.）的影响。此外，还研究了蒸汽加热对处理过的枣品质和微生物负荷的影响。在温度为46.5°C、相对湿度为95%的蒸汽加热室内，将被试昆虫随机分为8个位置，放置30 min。结果表明，距离蒸汽热源120 cm处，所有被试昆虫死亡率为100%。此外，蒸汽热处理对消除害虫有很大的效果。同时，蒸汽热处理对贮藏枣的微生物负荷略有降低，但对贮藏枣的理化特性影响不显著（P≤0.05）。因此，蒸汽加热是一种安全环保的防虫方法。

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来源期刊

Bulletin of Entomological Research 生物-昆虫学

CiteScore

4.00

自引率

0.00%

发文量

160

审稿时长

6-12 weeks

期刊介绍： Established in 1910, the internationally recognised Bulletin of Entomological Research aims to further global knowledge of entomology through the generalisation of research findings rather than providing more entomological exceptions. The Bulletin publishes high quality and original research papers, ''critiques'' and review articles concerning insects or other arthropods of economic importance in agriculture, forestry, stored products, biological control, medicine, animal health and natural resource management. The scope of papers addresses the biology, ecology, behaviour, physiology and systematics of individuals and populations, with a particular emphasis upon the major current and emerging pests of agriculture, horticulture and forestry, and vectors of human and animal diseases. This includes the interactions between species (plants, hosts for parasites, natural enemies and whole communities), novel methodological developments, including molecular biology, in an applied context. The Bulletin does not publish the results of pesticide testing or traditional taxonomic revisions.