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| Toxicity and individual mound treatment effect of d-limonene on red imported fire ant（Solenopsis invicta Buren） |
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| DOI：10.16768/j.issn.1004-874X.2016.07.015 |
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| Abstract: |
| D-limonene is a Rutacea plant-derived monoterpene with pesticide properties. A formulation
containing d-limonene（as active ingredient） and edible plant oil was assessed on its efficacy on red imported fire
ant（Solenopsis invicta Buren）. The toxicity of mixtures containing 80%，85% and 90% d-limonene on fire ants was
evaluated in laboratory. All mixtures demonstrated excellent insecticidal effects on reproductive alates，workers，eggs
and pupae of fire ants，and the effect of the mixture containing 90% d-limonene was the best. The time of all mixtures
for killing workers was much shorter than that for killing alates. The effect of the mixture containing 90% d-limonene
as an individual mound treatment was then evaluated. The mixture was applied by a unique method，that a sponge
soaking up 10 mL mixture was immediately put into the core of ant mound after rapidly poking a Φ 3 cm hole into |
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