Claim · model-written summary
Eugenol was significantly less toxic than thymol on contact to Agriotes obscurus larvae (LD50 516.5 μg/larva).
- Taxon
- corn
Zea mays subsp. mayse2 - Treatment
- eugenole3
- Interactor
- Agriotes obscurus
Agriotes obscuruse0pest - Outcome
- contact toxicitye1
- Direction
- less toxice3
- Value
- 516.5 μg/larvae4
- Comparator
- Thymole1
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“larvae of Agriotes obscurus”
e1“Thymol had the greatest contact toxicity (LD₅₀=196.0 μg/larva)”
e2“corn seed germination”
e3“citronellal and eugenol were significantly less toxic”
e4“LD₅=404.9 μg/larva and 516.5 μg/larva”
Title
Waliwitiya, Ranil cIRcle (University of British Columbia) 2009. doi:10.14288/1.0092185
Other claims from this paper (18)
- Intervention effect Thymol had the greatest contact toxicity to Agriotes obscurus larvae among the tested oils (LD50 196.0 μg/larva).
- Intervention effect Citronellal was significantly less toxic than thymol on contact to Agriotes obscurus larvae (LD50 404.9 μg/larva).
- Intervention effect Rosemary oil showed no significant contact toxicity to Agriotes obscurus larvae at 1600 μg/larva, the highest dose tested.
- Intervention effect Citronellal was the most toxic oil to wireworm larvae in fumigant bioassays (LD50 6.3 μg/cm).
- Intervention effect Rosemary oil was the second most toxic oil to wireworm larvae in fumigant bioassays (LD50 15.7 μg/cm), following citronellal.
- Intervention effect Thymol was less toxic than citronellal to wireworm larvae in fumigant bioassays (LD50 16.9 μg/cm³).
- Intervention effect Eugenol was the least toxic oil to wireworm larvae in fumigant bioassays (LD50 20.8 μg/cm³).
- Intervention effect Thymol significantly inhibited seed germination and development of corn in laboratory bioassays.
- Intervention effect Citronellal significantly inhibited seed germination and development of corn in laboratory bioassays.
- Intervention effect Rosemary oil had only minimal phytotoxic effects on corn.
- Intervention effect Rosemary oil-treated seeds produced the highest number of distressed wireworms in greenhouse trials, compared with all other treatments.
- Intervention effect Thymol-treated corn seeds were the least damaged by wireworm feeding in greenhouse trials (90.7% undamaged) compared with the control.
- Intervention effect Thymol retarded corn seedling height compared with the control.
- Intervention effect Citronellal retarded corn seedling height compared with the control.
- Intervention effect Eugenol produced the lowest corn seed germination (25.3%).
- Intervention effect Citronellal had no negative impact on corn seed germination.
- Intervention effect Rosemary oil had no negative impact on corn seed germination.
- Intervention effect Thymol had no negative impact on corn seed germination.