FUMIGANT TOXICITY OF THREE ESSENTIAL OILS AND THEIR BINARY AND TERTIARY MIXTURES AGAINST THE PULSE BEETLE, Callosobruchus maculatus F. (Coleoptera: Bruchidae)

ERLER F., ERDEMIR T., CEYLAN F. O., TOKER C.

FRESENIUS ENVIRONMENTAL BULLETIN, cilt.18, sa.6, ss.975-981, 2009 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 18 Sayı: 6
  • Basım Tarihi: 2009
  • Dergi Adı: FRESENIUS ENVIRONMENTAL BULLETIN
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.975-981
  • Anahtar Kelimeler: Callosobruchus maculatus, Pulse beetle, Essential oil, Fumigant toxicity, BOTANICAL NATURAL-PRODUCT, ROSMARINUS-OFFICINALIS, INSECTICIDAL ACTIVITY, PLANT-PRODUCTS, FLOUR BEETLE, L., MONOTERPENOIDS, AKSEBIO2
  • Akdeniz Üniversitesi Adresli: Evet

Özet

The aim of the present study was to evaluate the fumigant toxicity of three essential oils extracted from anise (Pimpinella anisum L.), thyme (Thymus vulgaris L.) and rosemary (Rosmarinus offcinalis L.) and their binary (1:l) and tertiary (1:1:1) mixtures against adult Callosobruchus maculatus F. under laboratory conditions. The results showed that all the essential oils tested, both alone and in all possible binary and tertiary mixtures, had fumigant toxicity on adult C. maculatus. The mortality of 1-7-day-old adults of C maculatus increased with increasing concentration from 15 to 120 mu L/L air and increasing exposure time from 24 to 96 h. In general, binary and tertiary mixtures of the oils were more toxic than either oil alone. At a dose of 120 mu L/L air, all binary and tertiary mixtures of the oils caused 100% mortality at all exposure time periods whereas the single treatment of the oils, except for rosemary oil and anise oil at 96 h, yielded <100% mortalities. The highest synergistic action was found in their tertiary mixture (anise + rosemary + thyme) by LT50 values ranging from 1.1 to 5.3 mu L/L air at all application doses. Neither the essential oils alone nor their binary and tertiary mixtures had any detrimental effect on chickpea seed germination. Our overall results suggest that all tested essential oils, especially their binary and tertiary mixtures, are promising candidates to protect stored chickpeas against the pulse beetle.