High-yield-planting-and-cultivation-technology（Eleven Strengthen The Prevention And Management Of Garlic Diseases And Insect Pests）

(1) Leaf blight: can be 64% copper hydroxide (can be killed) wet powder 500-800 times liquid spray prevention, spray once every 7 days, a total of 2-3 times.
(2) Purple spot disease: can choose 64% antivirus alum wet powder 500 times liquid, or 50% hundred bacterial condition wet powder 600 times liquid control;
(3) Garlic root maggot: harm began to appear in April, with 25% thiazine 400g per mu with water to control. Or with 200ml of 20% thiapolamide or 3000 times of 2.5% difenthrin emulsion.
(4) The insect pest is mainly thrips, which can be sprayed with 60% imidacloprid soluble liquid agent 1500 liquid for control. In addition, prevent aphids and planthoppers.
(5) Garlic bacterial root rot, prevention, during land preparation, 50% sodium powder per mu mixed with fine soil evenly spread, at the initial stage of the disease, 20% thibacterium copper suspension emulsion 60-90-50 ml or 50% chloroisocyanuric acid powder 30-60 grams of water and 40-60 kg of water spray, synergist or growth regulator is added to the liquid.
In addition, since the temperature rises after April, it is recommended to spray foliar fertilizer (element 10, nitrogen 10-phosphorus 10-potassium 30,500 times of water spray per barrel every 10 days). Adding spectral fungicides can greatly reduce the occurrence probability of yellow leaves and diseases.

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