Persistência de óleos essenciais em milho armazenado, submetido à infestação de gorgulho do milho

Coitinho, Rodrigo Leandro Braga de Castro; Oliveira, José Vargas de; Júnior, M. G. C. Gondim; Câmara, Cláudio Augusto Gomes da

doi:10.1590/s0103-84782010005000109

Cited by 21 publications

(17 citation statements)

References 10 publications

(12 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Although concentrations of 0.25 and 0.5 mL essential oil kg -1 grain with a mortality of 78.3% and 85%, respectively, did not show significant differences (p > 0.05) with 1, 2, and 4 mL essential oil kg -1 grain of essential oil of L. sempervirens. Our results agree with those of Coitinho et al (2010) that working with the essential oils of P. hispidinervum, P. marginatum, M. leucadendra, S. terebinthifolia and Eugenia uniflora L. (Myrtaceae) concluded that the contact insecticidal persistence does not reach 30 d.…”

Section: Resultssupporting

confidence: 92%

Insecticidal activity of Laurelia sempervirens (Ruiz & Pav.) Tul. essential oil against Sitophilus zeamais Motschulsky

Torres¹,

Silva²,

Tapia³

et al. 2014

Chilean J. Agric. Res.

View full text Add to dashboard Cite

The maize weevil Sitophilus zeamais Motschulsky is a worldwide key pest of stored products. Usually contact insecticides or fumigants are used against it, but problems as toxic residues, human intoxications, and resistance have triggered the search for alternative control methods as the use of essential oils. The objective of this research was to assess under laboratory conditions, the insecticidal properties of Laurelia sempervirens (Ruiz & Pav.) Tul. essential oil against S. zeamais. In contact toxicity bioassay assessed treatments were 0 (control), 1.25, 2.5, 5.0, 10, 20, and 40 mL essential oil kg -1 grain and 0 (control), 25, 50, 75, 100, 125, 150, and 175 μL essential oil L -1 air in fumigant toxicity tests. The highest toxicity by contact activity was reached by concentrations higher than 10 mL essential oil kg -1 grain (100% mortality). The same treatments totally inhibit F1. The dose of 175 μL essential oil L -1 air showed a significant toxicity by fumigant activity causing 72.5% of dead insects. The other treatments did not surpass 5% mortality. In offspring effect (F1) bioassay, all treatments had an insect emergence significantly lower than the control but concentrations equal or higher than 10 mL essential oil kg -1 grain prevented the emergence of F1 during the 7 wk of bioassay. The residual effect of contact toxicity remained by 15 d. The treatments based on essential oil lead to a weight grain loss lower than control and germination was not affected. All assessed treatments showed repellent effect. The essential oil of L. sempervirens has promissory perspectives to maize weevil control.

show abstract

Section: Resultssupporting

confidence: 92%

Insecticidal activity of Laurelia sempervirens (Ruiz & Pav.) Tul. essential oil against Sitophilus zeamais Motschulsky

Torres¹,

Silva²,

Tapia³

et al. 2014

Chilean J. Agric. Res.

View full text Add to dashboard Cite

show abstract

“…Safrole (82.07%) was identified as the major component of P. hispidinervum, and eugenol (80.49%) of S. aromaticum (Table 2), in which it showed a chromatographic profile that was already described in previous studies (Sauter et al, 2012;Fayemiwo et al, 2014). Eugenol and safrole are described in the literature as bioactive for Tribolium castaneum and Sitophilus zeamais, important storedgrain pests (Coitinho et al, 2010).…”

Section: Resultssupporting

confidence: 55%

Fumigation and repellency of essential oils against Callosobruchus maculatus (Coleoptera: Chrysomelidae: Bruchinae) in cowpea

Oliveira

França

Barbosa

et al. 2017

Pesq. agropec. bras.

Self Cite

View full text Add to dashboard Cite

-The objective of this work was to assess the fumigant and repellent effects of essential oils on adults of Callosobruchus maculatus and to identify the chemical composition of two of the tested essential oils. For the fumigation test, the oils of Schinus terebinthifolius, Piper aduncum, Syzygium aromaticum, Piper hispidinervum, Cymbopogon citratus, Cinnamomum zeylanicum, and the eugenol compound were tested at different concentrations on C. maculatus adults. For the repellency test, the oils of S. terebinthifolius, P. aduncum, P. hispidinervum, S. aromaticum, Jatropha curcas, and Ricinus communis were evaluated. In the fumigation test, it was observed that P. aduncum and eugenol showed the highest and lowest LC 50s , of 169.50 and 0.28 µL L -1 air, respectively. In the repellency test, the oils of S. aromaticum and P. hispidinervum were repellent to C. maculatus. Gas chromatography coupled to mass spectrometry (GC-MS) analysis of these two oils identified 42 compounds, of which safrole was the main component of P. hispidinervum and eugenol of S. aromaticum. The essential oils of S. aromaticum, C. zeylanicum, and the eugenol compound are the most promising to control C. maculatus, via fumigation.

show abstract

“…O efeito de óleos essenciais aplicados em aquênios de diversas espécies agrícolas vem sendo pesquisado pelo seu possível efeito alelopático e pelo seu uso como inseticida (COITINHO et al, 2010), fungicida (GUIMARÃES et al, 2011), bactericida (HUSSAIN et al, 2008) …”

Section: Introductionunclassified

Atividade alelopática de óleos essenciais de plantas medicinais na germinação e vigor de aquênios de alface

et al. 2015

View full text Add to dashboard Cite

ResumoOs óleos essenciais vêm despertando interesse comercial na área agrícola, principalmente por suas propriedades alelopáticas, inseticidas, antifúngicas, antimicrobianas e antioxidantes, e, por serem compostos naturais, geralmente, de reduzida toxicidade, custo relativamente baixo e que se degradam rapidamente no ambiente. As plantas medicinais se destacam como potenciais fornecedores de óleos essenciais por sua utilização etnofarmacológica já explorada. O objetivo desta pesquisa foi avaliar o potencial alelopático dos óleos essenciais extraídos de folhas frescas de capim-limão (Cymbopogon citratus), alfavaca (Ocimum gratissimum L.) e manjericão (Ocimum basilicum L.), comparando-os com seus constituintes majoritários (citral, eugenol e cineol, respectivamente), em diferentes formas de aplicação (contato direto e efeito volátil), sobre a germinação e o vigor de aquênios de alface (cultivar Regina SF 3500). Os efeitos dos óleos e seus componentes majoritários foram avaliados pelas variáveis: primeira contagem de germinação, germinação, IVG (índice de velocidade de germinação), massa seca de plântulas e comprimentos médios de parte aérea e radicular de plântulas. Os óleos essenciais de capim-limão e alfavaca apresentaram potenciais alelopáticos sobre a germinação e o vigor de aquênios de alface que podem ser atribuídos aos conteúdos dos respectivos constituintes majoritários, citral e o eugenol, enquanto que o efeito alelopático do óleo essencial de manjericão é consequência do efeito conjunto de todos os componentes do mesmo, independente da metodologia de aplicação. Palavras-chave: Óleos voláteis, Cymbopogon citratus, Ocimum gratissimum L., Ocimum basilicum L., alelopatia AbstractIn recent years, essential oils have gained commercial interest in the agricultural area, mainly for their allelopathic, insecticidal, antifungal, antimicrobial and antioxidant properties, and, also for their natural compounds, which have generally displayed low toxicity, relatively low cost and rapid degradation

show abstract

Persistência de óleos essenciais em milho armazenado, submetido à infestação de gorgulho do milho

Cited by 21 publications

References 10 publications

Insecticidal activity of Laurelia sempervirens (Ruiz & Pav.) Tul. essential oil against Sitophilus zeamais Motschulsky

Insecticidal activity of Laurelia sempervirens (Ruiz & Pav.) Tul. essential oil against Sitophilus zeamais Motschulsky

Fumigation and repellency of essential oils against Callosobruchus maculatus (Coleoptera: Chrysomelidae: Bruchinae) in cowpea

Atividade alelopática de óleos essenciais de plantas medicinais na germinação e vigor de aquênios de alface

Contact Info

Product

Resources

About