The breeding speed of aphids is fast and the rose should be saved in time
Aphids are such a terrible disease that they are even jokingly called by many flower friends as one of the most powerful pests in the world (ask for everyone's psychological shadow area)! The reason for this is mainly because its reproduction rate is really amazing! Many flower friends said that they were fine the day before, but on the next day, they found that their healthy and beautiful rose had aphids!
Aphids not only reproduce fast, but also have a shocking ability to destroy. Aphids are indeed indomitable and destructive! And the average number can double in three to four days! The medicine was just bought, and the disease was out of control.
First of all, an emergency rescue method is used to spray the whole plant with the common detergent at home (with a certain germicidal effect). It is impossible to eliminate aphids, but at least to a certain extent, we can restrain their reproduction speed, and the effect is sterilization at best.
Imidacloprid, avermectin and thiazide are several insecticides commonly used to deal with aphids. The insecticidal effect is good. Spray bottles are the best, and spray spraying can maximize the insecticidal effect. When spraying, we should pay attention to spraying both the front and back of the leaves, that is, to spray 360 degrees above and below the front and outside without a dead angle to ensure that the carpet does not have a dead corner to eliminate aphids.
If the branches and leaves are dense, you can prune the parts of the serious disease first. Many aphids start from the buds, which should be pinched off immediately. When spraying medicine, you should also pay attention to poking the leaves to spray. The frequency of medication is twice a week, generally four times (two weeks) can basically eliminate aphids, but can be traced once or twice to ensure that there are no aphids.
If there are several pots of rose at home, especially the rose placed together, in addition to the infected plant, other plants should also be properly sprayed with drugs for prevention, and the dosage and frequency of uninfected plants can be appropriately reduced, which can play a good preventive role.
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