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Journal of Entomology
  Year: 2018 | Volume: 15 | Issue: 3 | Page No.: 106-113
DOI: 10.3923/je.2018.106.113
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Efficacy of Some Botanical Volatile Oils on Protection Dry Date Palm from Oryzaephilus surinamensis L. Infestation

Sawsan S. Moawad and Fatehia N. Al Gamdi

Background and Objective: The saw-toothed grain beetle, Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae), is deemed one of the prevalent stored product pests which cause about 43% of the total physical and nutritional loss of grains. The control of this beetle is very difficult due to their ability to hide in many places in storage facilities and built resistance to pesticides. The experiments were targeted to evaluate the reaction of the saw-toothed beetle toward some of commercial and natural volatile oils as alternative safe materials and its role in reducing damage of dry date during storage. Materials and Methods: For this purpose, the olfactometer apparatus was designed, olfactory reaction, biological bioassay, sterility effect and persistence index of tested oils toward Oryzaephilus surinamensis were studied under laboratory conditions. Results: The most repellent oils toward the male and female beetle were fennel and clove oils fumes. The biological assay test was cleared that fumes of clove oils caused the highest reduction in eggs hatchability and mortality percentage of 1st instars’ larvae and adults’ stage. Continuous exposure larvae to fumes of fennel oils caused malformation in the formed pupae that lead to lost ability to change to normal adult. The cross mating of treatment female and male or each one separately by fumes of tested oils caused sterility ranged between 84-100%. Conclusion: The efficacy of clove oil fumes toward saw-toothed beetle was persisting for 5 days while fennel oil was persisting for 2 day. That mean fumes of clove oils was recorded persistence index more than fennel oil.
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How to cite this article:

Sawsan S. Moawad and Fatehia N. Al Gamdi, 2018. Efficacy of Some Botanical Volatile Oils on Protection Dry Date Palm from Oryzaephilus surinamensis L. Infestation. Journal of Entomology, 15: 106-113.

DOI: 10.3923/je.2018.106.113






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