What to do about aphids on roses in the north
Summary: Tips on how to deal with aphids on roses and simple tricks for green plant care in the north, let's follow the editor to take a look!
After May, roses in the north will soon bloom. Generally speaking, the blooming period of roses in the north is between June and August. High-quality rose varieties can bloom until autumn, with an average blooming period of at least two to three months. It is relatively easy to grow roses in the north, as the hot weather is short and does not affect the growth of the roses.
In the summer, the rainfall in the north increases, and the high humidity combined with proper sunlight can help roses grow better, especially for roses planted in the ground. They basically do not require management, allowing the roses to grow freely under natural conditions, resulting in high-quality flower buds. Ground-planted roses are easier to manage than potted ones.
Roses do not like high-temperature seasons, as high temperatures can accelerate the evaporation of water, and their leaves can easily be sunburned. A temperature of around 25 degrees is the most suitable for rose growth and blooming. After the petals open, the blooming period can last longer. If the ambient temperature is very high, even exceeding 30 degrees, the blooming period of rose petals will not exceed one week, as high temperatures can sunburn the bright petals.
It is best to plant roses in the ground, as ground-planted roses have more growth space and can absorb more trace elements. Mainly, their root systems can grow deeper, and the more vigorous the roots in the soil, the thicker the main branches will grow, resulting in larger diameter petals. The same variety of roses planted in pots compared to directly in the ground will have a significant difference in the size of the blooming petals.
What to do about aphids on roses in the north
One disadvantage of ground-planted roses, especially common in the north, is that in the summer, there will be a large number of aphids, which can exceed your imagination. A single rose plant can be covered with a dense layer of green aphids. In such cases, spraying pesticides is usually ineffective, as it may work for the day but the aphids will reappear within a week.
The biggest problem in growing roses in the north is aphids, which reproduce and grow unrestricted. If it is potted roses, they can be sprayed with pesticides regularly for some prevention. Ground-planted roses grow very vigorously, covering an area of at least one square meter, and spraying pesticides is simply not effective. Moreover, the morning dew dilutes the pesticides on the leaves.
I suggest using a mixture of pesticides and tobacco water for spraying. The insecticide should be sprayed on dry days, and the tobacco water should be soaked in water for about a day. The soaked tobacco water can also be sprayed on the leaves of the roses. The alkaline tobacco water will adhere to the branches and cannot be easily washed off, providing effective protection against aphids.