Evaluation of the toxicity of 17 essential oils against Choristoneura rosaceana (Lepidoptera: Tortricidae) and Trichoplusia ni (Lepidoptera: Noctuidae)

Pest Management Science
Cristina M MachialMurray B Isman

Abstract

The obliquebanded leafroller, Choristoneura rosaceana Harris, and the cabbage looper, Trichoplusia ni Hübner, are serious fruit and vegetable pests requiring multiple insecticide applications per year. To reduce non-target exposure to hazardous insecticides and to curb resistance development, alternative controls are required. Accordingly, a selection of 17 essential oils was screened against both lepidopteran pests, and the influence of azinphos-methyl resistance on essential oil toxicity to C. rosaceana was studied. Of the 17 essential oils screened, patchouli oil (Pogostemon cablin Benth.) and thyme oil (Thymus vulgaris L.) were selected for further testing against C. rosaceana, whereas patchouli oil, garlic oil (Allium sativum L.) and lemongrass oil (Cymopogon nardus L.) were selected for further testing against T. ni. LC(50) and LD(50) values confirmed that patchouli oil was the most toxic to C. rosaceana larvae, with LC(50) = 2.8 µL mL(-1) and LD(50) = 8.0 µg insect(-1). Garlic oil was the most toxic oil to T. ni larvae with LC(50) = 3.3 µL mL(-1) and LD(50) = 22.7 µg insect(-1), followed by patchouli oil and lemongrass oil. Azinphos-methyl-resistant leafrollers were 1.5-fold more tolerant to patchouli oil and 2.0-fold mo...Continue Reading

References

Oct 8, 1999·Insect Biochemistry and Molecular Biology·J G Scott
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Mar 15, 2005·Insect Biochemistry and Molecular Biology·Essam E Enan
Nov 13, 2007·Food and Chemical Toxicology : an International Journal Published for the British Industrial Biological Research Association·F BakkaliM Idaomar

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Citations

Apr 30, 2015·International Journal of Cosmetic Science·I T CarvalhoL Santos
Nov 9, 2014·In Vitro Cellular & Developmental Biology. Animal·Muhammad Rizwan-Ul-Haq, Ahmed Mohammed Aljabr
Apr 20, 2016·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Shanshan GuoShushan Du
Jan 4, 2017·Antioxidants·Awais AnwarChris J Hamilton
Apr 20, 2017·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Hossein Mirzaei-NajafgholiParissa Taheri
Jan 1, 2012·Archives of Insect Biochemistry and Physiology·Marta GinerGuy Smagghe
Mar 18, 2020·Scientific Reports·Isabel Moreira da SilvaCarlos Sigueyuki Sediyama

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