Controle químico da forma galícola da filoxera Daktulosphaira vitifoliae (Fitch, 1856) (Hemiptera: Phylloxeridae) na cultura da videira

grape phylloxera daktulosphaira vitifoliae (fitch, 1856) (hemiptera: phylloxeridae) is the main grape pest. adults and nymphs feeds on leaves and roots but major damage is observed on roots of own rooted vitis vinifera. damage on leaves is important in root stock nurseries where chemical control is necessary. this study was conducted to evaluate insecticides to control the leaf form in a paulsen 1103 nursery in field condictions. imidacloprid (provado 200 sc, 40ml 100l-1) and thiamethoxam (actara 250 wg, 30g 100l-1) reduced foliar damage in more than 90%, providing better control than deltamethrin (decis 25 ce, 40ml 100l-1) and fenitrothion (sumithion 500 ce, 150ml 100l-1) current standarts for pest control. acephate (orthene 750 br, 100g 100l-1) and abamectin (vertimec 18 ce, 80ml 100l-1) were not efficient.