Test Of The Insectcides To Control The Pest On The Cruciferae Vegetables In Summer And Autumn

The study was based on the project of the Tenth 5-year National Key project and was carried out in Junshan, Yueyang. The object of study were the main pests on the cruciferae vegetables, such as cabbage and water spinach, which were the best planting areas, and studying in detail pests species and the damage situation of the pests. There were 5 main insects to damage the cruciferae vegetables.They were Prodenia litura (Fabricius). Spodoptera exigua Hubner, Pieris rapae, Plutella xylostella (Linnaeus) and Brevicoryne brassicae. The distributed proportion of that 5 kinds of pests was consistent with its" damaging degree.Through indoor screening, some insecticides had been gained (Including single and mixed preparations) to control these pests, and detailedly studying the dosage and proportioning. Validating the proportioning and effect in the field, the results indicated: The proportion of abamectin and chlorpyrifos was 0.2 to 41.8 to control Pieris rapae, the proportion of emamectin benzoate and cypermethrin was 0.2 to 3 to control Laphygma exigua. Abamectin ME controlled Pluteiia xylostella. the proportion of beta-cypermethrin and acetamiprid was 1.5 to 5 to control Brevicoryne brassicae. the proportion of emamectin benzoate and tebufenozide was 0.5 to 10 to control Prodenia litura and Laphygma exigua, which had high effect. That could be used in the production practice to control the pests on the leaf vegetable crops.