Control of pineapple mealybugs

Abstract

A trial was carried out at Uberaba, MG, Brazil, with the aim of choosing chemical controle measures for pineapple (Ananas comosus L.) insidious mealybugs. The performance was of two stages: The first when cuttings were in the mother plant, and the second, after planting. A randomized block design in 3 x 3 + 1 fatorial scheme, was used where the factors were: three insecticides (diazinon 600 CE, vamidotion 40% e disulfoton 2,5%), and three application times of cutting: 1st time, 15 and 45; 2nd time, 30; 3rd time, 45 days after the fruit harvest. During the vegetative development: 1st time, second; 2nd time, second and fifth; 3rd time, fifth and eighth month after planting. Results indicated that the disulfoton applied 45 days after harvest and after planting was better than the other treatments.