Abstract
The feeding inhibition and oviposition deterrent activity of natural products were evaluated under laboratory conditions against Tetranychus urticae Koch. Mite feeding specks in the treatments varied from 61.3 to 428 at concentrations ranging from 0.625 to 40%. Darekastra and fermented buttermilk outperformed others to result in reduced number of feeding specks with increase in concentration. The feeding inhibition index for all the products was negative suggesting that these have varied level of inhibition. Cow urine, Darekastra, fermented buttermilk and Tamarlassi were found to effectively reduce the oviposition by mite. The oviposition deterrence index exhibited both attractiveness and repellent activity of natural products. Cow urine, Darekastra and fermented buttermilk proved as potent acaricides against T. urticae under both the deterrence parameters.
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