Ba Vi, Hanoi has a tea-growing area of 1,700 ha, tea has played an important role in the economy of the district. However pests such as thrips, aphids, green leafhopper, red spider mite... are the main obstacles to productivity and the quality of the local tea. The use of herbal pesticides will reduce the risk of environmental pollution, ensure hygiene and safety for tea products. Research results have shown that the treatments that use Sokupi 36AS has the highest effective prevention (the effective in preventing green bugs reached 80.4 percent
effective in preventing thrips 79.7 percent and effective in preventing red spider mite reached 88.1 percent at 7 days after treatment)
followed by mixing formula 60 percent DC-TronPlus + 40 percent Padan and the lowest is 100 percent DC-TronPlus. In addition, the formula uses herbal pesticides have long time effect should reduce the number of sprays, ensure isolation time and do not leave harmful chemical residues in products of dried tea. So appropriately put to use in IPM systems on tea production to ensure safety.