Efecto de la aplicación de dos ingredientes activos en dos dosis, para el control químico de araña roja (Tetranychus urticae K.), en diez variedades de clavel (Dianthus caryophyllus I.), en invernadero.

Abstract

The present research proposes: to evaluate the effect of the application of two active ingredients in two doses, for the chemical control of the red spider (Tetranychus urticae K.), in ten varieties of carnation (Dicmthus caryoplyllus L.), in the greenhouse; the products under investigation were: Kanemite and New Mectin with a dose of 0.4 cc /I and 0.8 cc /I for each product. A completely randomized three-factor block design (2 Acaricides x 2 doses x 10 varieties) was performed with three repetitions. Parameters such as temperature and humidity, mite population density, frequency and time of application, percentage of mite damage, percentage of acaricide control, percentage of incidence and mortality of mites were evaluated and economic analysis was performed according to cost-benefit ratio. It was determined that the highest efficiency in the control of red spider (Tetranychus urtieae Koch) in the state of eggs, obtained the acaricide Kanemite (Acequinocyl) wvith 17%; also in immature and adult states with percentages of 12% and 20%. In the interaction products and doses, the one that presented the highest percentage in the control of mite individunls (Tetranychus urticae Koch), in the egg states it was the treatment (PID2) with the Kanemite product and dose of 0.8 cc / It with 48, 11% also for immature and adult states with 37% and 52% in mite control. The one that presented the highest benefit / cost ratio was the treatment TIO (V3PID2) 10ST120 x Kanemite x 0,8 cc / It with 3.09 that is to say that the dollar invested is recovered and a profit of 2 dollars is obtained with 0.09 cents which is cquivalent to 209.2724 profitability. It is recommended, from the agronomic point of view, to ue the T10 (V3PID2) treatment, the 10ST120 variety with Kanemite in doses of 0.8 cc / It, as it presents favorable conditions in the control of the pest.