The peak season for rose pests and diseases has passed, but summer care still cannot be taken lightly

Spring has gone and summer has arrived, and many flower growers think they can finally relax, at least because roses will either be scorched to death by the sun or will not be killed by pests and diseases. Actually, that is not the case. In summer, roses are still just as prone to pests and diseases.

When caring for roses, fertilizer is very important. It is best to choose ecologically safe organic fertilizer, rich in and balanced with nitrogen, phosphorus and potassium, with various organic substances, minerals and amino acids added, to promote rapid plant growth, produce more flower buds, bloom more and prolong the flowering period.

Roses are a fairly easy plant to keep alive, with decent adaptability to the environment, and roses also have a relatively long flowering period, so you can see them blooming for much of the year.

When caring for roses, be sure to choose a spot with relatively ample sunlight, and with at least more than 6 hours of full sun a day. Many flower growers do not believe it, but this is indeed an important factor that cannot be ignored for rose growth and flowering, and it is also the key to whether pests and diseases occur.

If roses are often placed in a dark, damp environment, bacteria will breed and pests will arrive. Only with ample light and moist but not waterlogged potting soil can you keep pests and diseases away.

In order to improve the resistance of roses and reduce pests and diseases, be sure to supplement them with nutrient solution, rich in nitrogen, phosphorus and potassium, with various organic substances, minerals and amino acids added, to promote rose growth and flowering and improve resistance.

However, plants with fragile root systems tend to have weaker immunity to pests and diseases, especially in a season like spring when all things grow, when large numbers of pests will invade their root systems and hinder their development. So for a plant like the rose, how exactly should pests and diseases be prevented and controlled? Gray mold: During high-temperature periods, bacteria also grow rapidly, and one of the pests and diseases it is very easy to contract is gray mold. At the beginning, rose leaves turn yellow, and many flower growers think this is caused by too much watering, but this condition can also appear with too little watering.

Solution: Cut off all the diseased branches and throw them into the trash can, because gray mold is a bacterial infection. If it is left in the flower pot, the bacteria will spread and keep propagating, causing unnecessary effects. It is also best to clean up those rotten flowers and leaves, then disinfect with carbendazim and place the plant in a well-ventilated place. Aphids: Almost all roses will experience aphids. This is something most people have seen a lot: small green, somewhat transparent insects. If you do not look carefully, you will not even know there are aphids. They appear in dense swarms on the branches. A relatively effective method is to spray dichlorvos, but its toxicity is high for household use, so you can also use seven-spotted ladybugs to prey on aphids.

Dieback disease: Dieback disease is also a disease that roses are relatively prone to, and it is also caused by bacterial infection. Usually all the branches must be cut off and then burned, which can very well prevent rose infection. When pruning, be careful not to choose cold, overcast weather, because the pruned branches are relatively fragile and are prone to dying in rainy weather.