期刊
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY
卷 31, 期 4, 页码 813-820出版社
SOC BRASILEIRA QUIMICA
DOI: 10.21577/0103-5053.20190245
关键词
Melaleuca leucadendra; essential oils; Tetranychus urticae; Plutella xylostella
资金
- Fundacao de Amparo a Ciencia e Tecnologia do Estado de Pernambuco (FACEPE) [APQ-1008-1.06/15, APQ-0476-1.06/14, APQ-08601.06/16, IBPG-0344-1.06/17]
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [PQ-2-302860/2016-9]
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES) [PROCAD-88887.308194/2018-00]
Essential oils from the leaves, stems, flowers and fruits of Melaleuca leucadendra growing in the state of Pernambuco, Brazil, were analyzed using gas chromatography-mass spectrometry (GC-MS). The effects of the oils and their major constituent were evaluated on the agricultural pests Tetranychus urticae and Plutella xylostella in different stages of development. The analysis revealed a M. leucadendra chemotype rich in (E)-nerolidol (81.78 +/- 0.90 to 95.78 +/- 1.20%). P. xylostella was more susceptible to the oils and major constituent than T. urticae. The fruit oil was 1.5-fold more toxic than the leaf oil to T. urticae eggs. (E)-Nerolidol was 5.5-fold and 4.5-fold more toxic to T. urticae adults than the leaf and fruit oils, respectively. Azamax (R) used as the positive control was more efficient than the oils and (E)-nerolidol against T. urticae. However, the oils and (E)-nerolidol were more toxic to P. xylostella than Azamax (R).
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