Pheromone study of acarid mites xvii. identification of 2 hydroxy 6 methylbenzaldehyde as the alarm pheromone of the acarid mite tyrophagus perniciosus acarina acaridae and its distribution among related mites

Leal, W.S.; Nakano, Y.; Kuwahara, Y.; Nakao, H.; Suzuki, T.

Applied Entomology and Zoology 23(4): 422-427

1988


ISSN/ISBN: 0003-6862
Accession: 007650342

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Abstract
2-Hydroxy-6-methyl-benzaldehyde was identified as the alarm pheromone of the acarid mite, Tyrophagus perniciosus, which is known as a pest attacking spinach culture and cucurbitaceous plants in the field and also in greenhouses. The compound, which was one of the major components of the hexane extract, was active at 10 ppm. Although this compound has been identified not only in mites, Acarus siro and Caloglyphus rodriguezi, but also in the common eucalypt longicorn Phoracantha semipunctata, this is the first report on its biological significance. Other than T. perniciosus, the compound is sporadically distributed among other species of the genus Tyrophagus, namely, four strains of T. putrescentiae among the five investigated and one of two strains of T. neiswanderi. It was not detected in T. similis.