EVALUATION OF A NEW INSECTICIDE FOR THE CONTROL OF CHEMICAL MEALYBUG PLANOCOCCUS FICUS (SIGNORET) (HEMIPTERA: PSEUDOCOCCIDAE) IN TABLE GRAPES

Abstract

The aim of this study was to evalúate efficacy of the insecticide Spirotetramat at different doses, in addition to its compatibility with some fungicides and foliar fertilizers to control mealybug in table grapes. In Study 1 evaluated three different doses of Spirotetramat: 60, 90 and 120 grams of active ingredient per hectare (g.a.i /ha), a fractional dose Spirotetramat (60
+60 g.a.i. / ha), a dose of Spirotetramat (90 g.a.i. /ha), a dose of imidacloprid (525 g.a.i. / ha) as control business and a control without application. Different treatments of Spirotetramat were applied to the plant in leaf form, while the dose of imidacloprid was applied to the soil and then set through a drip irrigation. Test 2 was to evalúate a dose of Spirotetramat (120
g.a.i / ha) without mixing, five mixtures of Spirotetramat (120 g.a.i / ha) with fungicides, fertilizers, adjuvants and gibberellic acid, a dose of imidacloprid (525 g.a.i. / ha) as Commercial witness and a witness (without application) to be implemented. The results of Study 1 show that Spirotetramat in doses of 60, 90, 120, (Fracc.) g.a.i. /ha and Imidlacloprid in doses of
350 g.a.i./ha were effective in controlling the pest. The effectiveness of control treatments record a period of more than 60 days protection against thepest. Spirotetramat showed a more dear from the 14 days after application, whereas control Imidacloprid is on his best from the 21 days of application. The results of Test 2 indícate that doses of Spirotetramat 120
g.a.i. / ha (not mixed), Spirotetramat 120 g.a.i. / ha mixed with fungicide, fertilizer, adjuvants and growth regulators were highly effective in controlling ovisaco and / or mealybug totals. The effectiveness of Spirotetramat persisted for more than 56 days after application.