NDLI: Assessment of the Insecticidal Potential of Eucalyptus urograndis Essential Oil Against Rhodnius neglectus Lent (Hemiptera: Reduviidae)

Content Provider	Springer Nature Link
Author	Gomes, S P
Copyright Year	2013
Abstract	The resistance of triatomines to pyrethroids has been reported in several Latin American countries, including Brazil, indicating the need for the development of new approaches for the control of vectors of the Chagas disease. In here, we evaluated the insecticidal potential of the essential oil of Eucalyptus urograndis (Myrtaceae) against unsexed third and fourth instars of Rhodnius neglectus Lent (Hemiptera: Reduviidae) in topical application, fumigation, surface contact, and repellency . The insecticidal activity of the essential oil tested was detected by topical application (LD$_{50}$ = 0.1731 μL/insect and LD$_{99}$ = 0.2948 μL/insect for 24 h), fumigation (LC$_{50}$ = 0.021 mL/mL air and LC$_{99}$ = 0.1525 mL/mL air for 24 h) and surface contact (LC$_{50}$ = 0.7073 μL/cm$^{2}$ and LC$_{99}$ = 4.59 μL/cm$^{2}$ for 24 h). Mortality observed after 48–72-h exposure was very high and did not allow for any adjustment of the mortality curve. In the repellency assay, an effect was observed on 80% of tested nymphs. However, no repellency was observed after 24 h of exposure. Eucalyptus urograndis essential oil has a high insecticidal and repellent potential for R. neglectus nymphs, whether serving as a molecular model for new substances or as an alternative for the control of these insects.
Starting Page	431
Ending Page	435
Page Count	5
File Format	PDF
ISSN	1519566X
Journal	Neotropical Entomology
Volume Number	42
Issue Number	4
e-ISSN	16788052
Language	English
Publisher	Springer US
Publisher Date	2013-06-15
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Life Sciences Triatominae Entomology Chagas disease Agriculture sustainable pest management Botanical pesticides vector control
Content Type	Text
Resource Type	Article
Subject	Insect Science

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Assessment of the insecticidal potential of Eucalyptus urograndis essential oil against Rhodnius neglectus Lent (Hemiptera: Reduviidae).

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Assessment of the Insecticidal Potential of Eucalyptus urograndis Essential Oil Against Rhodnius neglectus Lent (Hemiptera: Reduviidae)

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