Acaricidal effect of bifenazate on Tetranychus urticae Koch (Acari: Tetranychidae) in strawberry crop
DOI:
https://doi.org/10.52807/qunab.v1i1.13Keywords:
mites, agrochemicals, crop, fruits, infestationAbstract
The "red spider mite" Tetranychus urticae, is the main pest in strawberry cultivation, which causes great losses to producers. The objective was to evaluate the acaricidal effect of Bifenazate on the population of this mite, in the strawberry crop. Four doses of the active ingredient Bifenazate were used: (0.05); (0.100); (0.150); 0.200 L/200 L of water and a control without application. The following variables were evaluated: degree of initial infestation, degree of infestation at three, five, seven and ten days after the application on the population of egg mites and mobile individuals (nymphs + adults), taking three mature leaves randomly from the four cardinal points in the middle and lower part of each plant. The statistical design that was used was the completely randomized block design (DBCA) with five treatments and four repetitions, for the cases in which significant statistical differences were presented in the analysis of variance, the Tukey test was performed at 5%. The results show a high effectiveness of the treatments since all managed to reduce the populations with respect to the control, highlighting the dose of 0.200 L/200 L of Bifenazate, reducing the populations > 88% to 99% of eggs and mobile individuals of mites/leaf respectively, 10 days application.
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Copyright (c) 2022 Paul Rildo Zevallos-Huerto, Nina Casana-Amoretti, Victor Manuel Arévalo-Rojas
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