Bài báo khoa học

Pieris rapae L. and Spodoptera litura L. are the two main and common pests in cabbage in Vietnam. In the laboratory, herbal products was concentration of extract/water of 1/25 - 1/20 và dose of 3ml/box with effective results in Pieris rapae use from 84,27 - 88,72% and Spodoptera litura use from 83,51 - 87,64% after 5 days of spraying. In the field of Brassica juncea herbal products was concentration of extract/water of 1/20 and dose of 25 - 30ml/m2 use, with effective results in Pieris rapae use from 77,24 - 78,99% and Spodoptera litura use from 76,03 - 80,16% after 7 days of spraying.