In the initial stage of aphid damage, it is recommended to take artificial control, the specific method is to brush the aphid with a brush or brush, and bury the cleaned aphid in the basin soil.
The special smell of leek can be used to control aphids. Planting leek and sick flowers together can play an effective role in prevention and treatment.
Add 600 to 800 times of water to the water and dilute it and pour it into the sprays. Sprinkle on the pests and ensure that the body is covered with liquid. This method has a high insecticidal rate, and will not cause damage to plants, but also has the effect of mosquito repellent.
Take dry tobacco leaves and add water, the proportion is 1:20, filter after 24 hours, spray on plants, it can kill aphids. If there is no dry tobacco at home, you can also use about three cigarette butts for brewing, and add a small amount of alkaline soap liquid, it can also play a certain effect.
Mash a small amount of onion and add about 500g of water. After 24 hours, filter it and spray it on the flowers. This method not only can effectively control aphid, but also has certain effect on spider.
