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espanolOregmopyga peruviana, plaga de la vid, ocasiona danos que reducen el rendimiento y, en infestaciones fuertes, provocan la muerte de la planta. Esta presente en todo el litoral peruano, siendo una plaga muy importante. El objetivo de estudio fue determinar la eficacia individual de nueve metodos (buprofezin 25 g·hL-1, clorpirifos 96 g·hL-1, vinaza pura, spirotetramat 474,3 g·hL-1, imidacloprid SC 1435 g·hL-1, imidacloprid WG 17,5 g·hL-1, M. anisopliae y B. bassiana 333,3 x 1012 UFC·hL-1, tiametoxam 900 g·hL-1 y dinotefuran 680 g·hL-1) en el control de Oregmopyga peruviana. Cada tratamiento se comparo con su testigo utilizandose la prueba T de Student para variables independientes (p ≤ 0,05). Ademas, se determino el porcentaje de control mediante la formula de Henderson y Tilton, obteniendo: buprofezin 87,4%, clorpirifos 84,2%, vinaza 70,1%, spirotetramat 97,2%, imidacloprid WG 95,5%, imidacloprid SC 87,6%, dinotefuran 99,6% y tiametoxam 91,6%; M. anisopliae y B. bassiana no fueron eficaces en el control. Los resultados muestran que ocho de los nueve tratamientos tuvieron un porcentaje de control superior al 70% teniendo poblaciones significativamente inferiores. Se concluye que la vinaza es una alternativa organica y de bajo costo para el control eficaz de O. peruviana. EnglishOregmopyga peruviana, pest of the vine, causes damage that reduce the yield and strong infestations provoke the death of the plant. It is present along the Peruvian coast, being a very important pest. The objective of the study is to determine the individual efficacy of nine treatments (buprofezin 25 g·hL-1, chlorpyrifos 96 g·hL-1, pure vinasse, spirotetramat 474.3 g·hL-1, imidacloprid SC 1435 g·hL-1, imidacloprid WG 17.5 g·hL-1, M. anisopliae and B. bassiana 333.3 x 1012 CFU·hL-1, thiamethoxam 900 g·hL-1 and dinotefuran 680 g·hL-1) in different phenological periods. Each treatment was compared with its control using the Student's t-test for independent variables (p ≤ 0.05). In addition, the control percentage was determined using the Henderson and Tilton formula, obtaining for buprofezin 87.4%, chlorpyrifos 84.2%, vinasse 70.1%, spirotetramat 97.2%, imidacloprid WG 95.5%, imidacloprid SC 87.6%, dinotefuran 99.6% and thiamethoxam 91.6%. M. anisopliae and B. bassiana got no control. The results show that eight of the nine treatments had a controlling percentage higher than 70% having significantly lower populations. Furthermore, vinasse is an organic and low cost alternative for the control of O. peruviana.

scientia agropecuaria

Effectiveness of nine control methods of Oregmopyga peruviana (Granara de Willink &amp; Diaz) (Hemiptera: Coccoidea: Eriococcidae) in Vitis vinifera L. ‘Negra Criolla’ and ‘Quebranta’