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Comparative toxicity of Rosmarinus officinalis L. essential oil and blends of its major constituents against Tetranychus urticae Koch (Acari: Tetranychidae) on two different host plants
Author(s) -
Miresmailli Saber,
Bradbury Rod,
Isman Murray B
Publication year - 2006
Publication title -
pest management science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.296
H-Index - 125
eISSN - 1526-4998
pISSN - 1526-498X
DOI - 10.1002/ps.1157
Subject(s) - tetranychus urticae , rosmarinus , biology , spider mite , acari , bioassay , botany , officinalis , host (biology) , toxicity , toxicology , horticulture , chemistry , ecology , organic chemistry
Bioassays of Rosmarinus officinalis L. essential oil and blends of its major constituents were conducted using host‐specific strains of the two‐spotted spider mite, Tetranychus urticae Koch, on bean and tomato plants. Two constituents tested individually against a bean host strain and five constituents tested individually against a tomato host strain accounted for most of the toxicity of the natural oil. Other constituents were relatively inactive when tested individually. Toxicity of blends of selected constituents indicated a synergistic effect among the active and inactive constituents, with the presence of all constituents necessary to equal the toxicity of the natural oil. Copyright © 2006 Society of Chemical Industry