Harmless treatment of vegetable pests and diseases
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1. Cataclysmic techniques: In areas where the cultivation of vegetables such as bases is relatively concentrated, vigorously promote the use of insect pest attractants, insecticidal lamps, yellow plates (pots) and other trapping technologies to effectively reduce the circulation of vegetable pests and reduce the use of pesticides. 2. Insect-resisting net cover technology: Promote comprehensive coverage of greenhouses, cover the roof with rain-proof membranes, and cover the perimeter of insect nets. Support the use of shade net during high temperature, increase the number of water sprays appropriately, and reduce the temperature inside the booth. 3. Manual removal of eggs and leaves: Spodoptera litura and Spodoptera exigua low-larvae have clustering hazard habits. In combination with agricultural operations, insect eggs and leaves are promptly removed before the larvae are dispersed and harmed. 4. Strengthen the management of the field and improve the ecological environment of vegetable growth: combine the summer vegetables with referral and other agricultural operations, rationally layout the sponsors, promote the rotation of dry and paddy crops, timely planting, and implement tillage and weed control. Greenhouses, greenhouses and other facilities cultivation, optional sunny days will be greenhouses, greenhouses closed after the boring sun heating, continuous high temperature stuffy (baked) shed 5-7 days, can effectively kill greenhouses, greenhouses and soil in a variety of pests. 5. Promote the use of biopesticides and high-efficiency, low-residue pesticides: Bt, 1% Wickart EC, 15% Naphtha suspension, 20% Mimin can be used during the egg hatching period of the night moth pests to the younger age of young larvae. Suspension, 40% chlorpyrifos EC, 55% frogs EC, 5% ECG, 5% EC, 52.5% EC, 10% EC, etc., depending on pest development, every 5 - 7 days, even 2-3 times. Attention should be paid to the rotation of pharmaceuticals in order to improve efficacy and delay drug resistance. At the moment of high temperature season, medication should be used in the evening. Do not blindly increase the concentration of the drug, and spray the amount of liquid when spraying to ensure the control effect.