[{
  "type": "article-journal",
  "title": "REPELLENCY OF LOCAL DIATOMACEOUS EARTH ON WHEAT AGAINST SOME COLEOPTERAN STORED-PRODUCT PESTS",
  "author": [
    {
      "family": "Bayram",
      "given": ""
    },
    {
      "family": "ISIKBER",
      "given": ""
    }
  ],
  "issued": {
    "date-parts": [[2025]]
  },
  "container-title": "Journal of Animal and Plant Sciences",
  "ISSN": "1018-7081",
  "volume": "35",
  "issue": "6",
  "page": "1666-1678",
  "DOI": "https://doi.org/10.36899/JAPS.2025.6.0140",
  "abstract": "<p>In this study, the repellent effect of a local diatomaceous earth (DE) formulation (Demite&reg;) was evaluated on monolayer and bulk wheat against three coleopteran stored-grain pests: the lesser grain borer (<em>Rhyzopertha dominica</em>&nbsp;(Fabricius), Coleoptera: Bostrichidae), the confused flour beetle (<em>Tribolium confusum</em>&nbsp;Jacquelin du Val, Coleoptera: Tenebrionidae), and the rice weevil (<em>Sitophilus oryzae</em>&nbsp;(L.), Coleoptera: Curculionidae) Two-choice tests were conducted to assess insect behavior on treated and untreated surfaces at a DE concentration of 1000 ppm. The experiments measured insect preferences on monolayer wheat surfaces and within bulk wheat at specific observation intervals. The repellency tests were performed under controlled conditions: 25 &plusmn; 1 &deg;C temperature, 65 &plusmn; 5% relative humidity, and complete darkness in an insect growth room. The repellency of Demite&reg; significantly varied between application methods. On monolayer wheat, the strongest response was observed for&nbsp;<em>T. confusum</em>&nbsp;(97%), followed by&nbsp;<em>S. oryzae</em>&nbsp;(72%) and&nbsp;<em>R. dominica</em>&nbsp;(56%). In contrast, bulk wheat tests showed higher repellency for&nbsp;<em>S. oryzae</em>&nbsp;(90%) and&nbsp;<em>T. confusum</em>&nbsp;(89.3%), while&nbsp;<em>R. dominica</em>&nbsp;exhibited lower responsiveness (53.3%). Significant differences in repellency among the insect species were detected.&nbsp;<em>Sitophilus oryzae</em>&nbsp;and&nbsp;<em>T. confusum</em>&nbsp;exhibited strong repellency across all observation periods, whereas&nbsp;<em>R. dominica</em> was less affected by DE-treated wheat. In conclusion, the local DE formulation demonstrated notable repellent properties, making it a valuable tool in stored grain pest control strategies.</p>",
  "publisher": "Pakistan Agricultural Scientists Forum",
  "URL": "https://thejaps.org.pk/AbstractView.aspx?mid=2025-JAPS-515"
}]