Affiliation:
1. Universidade do Estado de Mato Grosso/UNEMAT, Brazil
2. Universidade Federal do Paraná/UFPR, Brazil
Abstract
ABSTRACT Tibraca limbativentris to is an important rice pest and occurs in all rice-growing regions of Latin America. The control this insect is accomplished with synthetic chemical insecticides, however, new approaches are needed to reduce risks to the environment, to the natural enemies and also to avoid the onset of insecticides resistance. This study was designed to assess the toxicity of essential oils (EOs) from leaves of Piper aduncum, P. gaudichaudianum, P. malacophyllum, P. marginatum and P. tuberculatum (Piperaceae) on rice stalk stink bug eggs, T. limbativentris. Essential oils were extracted with steam distillation and dilutions were made for bioassays at concentrations of 0.25; 0.5; 1.0; 2.0 and 4.0%. Essential oils from all species of Piperaceae displayed ovicidal activity. The LC50 values indicated that both younger and older eggs were susceptible to these oils. Ovicidal activity is related to the potential toxicity of several compounds, especially dilapiolle, myristicin, cubebene, α-guaiene, longifolene, prezizane, spathulenol, sabinene and δ-2-carene. Thus, EOs tested showed promising results for use as biorational botanical insecticides.
Subject
Soil Science,General Veterinary,Agronomy and Crop Science,Animal Science and Zoology,Food Science
Reference76 articles.
1. Insecticidal and repellence activity of the essential oil of Pogostemon cablin against urban ants species;ALBUQUERQUE E. L. D.;Acta Tropica,2013
2. Planting time as a tactic to manage the small rice stink bug, Oebalus poecilus (Hemiptera, Pentatomidae), in Rio Grande do Sul, Brazil;ALBUQUERQUE G. S;Crop Protection,1993
3. Volatile constituents of Piperaceae from Santa Catarina, Brazil - Essential oil composition of Piper cernuum Vell. and Peperomia emarginella (Sw.) C. DC;ABREU A. M.;Journal of Essential Oil Research,2005
4. Identification of essential oil components by Gas chromatography/Mass Spectroscopy;ADAMS R. P,2007
5. Ovicidal activity of some insecticides against Scotinophara coaractata (Fab.) (Hemiptera: Pentatomidae) on rice;ANANDHI P.;Journal of Entomological Research,2006
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