Effects of exogenous Jasmonic acid and benzo (1, 2, 3) thiadiazole-7-carbothioic acid S-methyl ester (BTH), a functional analogue of salicylic acid, on the egg production of a herbivorous mite Tetranychus urticae (Acari: Tetranychidae)

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The effects of jasmonic acid (JA) and benzo (1, 2, 3) thiadiazole-7-carbothioic acid S-methyl ester (BTH), a functional analogue of salicylic acid, treatment of lima bean plants on the egg production were investigated in a herbivorous mite, Tetranychus urticae. JA and BTH were applied at three concentrations for each treatment to soil in pots containing plants. Only the 0.1mM JA-treatment significantly reduced the number of eggs laid by T. urticae over a three day period, whereas higher (1mM) and lower (0.01mM) concentrations did not affect the egg production of T. urticae. Fewer eggs were laid by T. urticae on lima bean plants treated with 1mM and 10mM BTH than with 0.1mM BTH. These data suggest that JA and BTH are involved in the direct defense of the lima bean plant against T. urticae.
日本応用動物昆虫学会の論文
2004-05-25