What is the black little bug on the枝 tip of the spring Chinese rose?
The editor will introduce to you what the black little bug on the branch tip of the spring Chinese rose is and how to treat the aphids on the Chinese rose in terms of green plant flowers. Next, let's understand together.
Recently, some flower friends have asked that there are black bugs on the bud of Chinese roses, and they don't know what kind of bugs they are. They have sprayed several times of medicine, but there are still some. They don't know what to do. Today, I will briefly talk about this problem, hoping to be helpful to you.
What is the black little bug on the branch tip of the spring Chinese rose?
In fact, there are not many pests on Chinese roses in spring. The most common one is aphids, which specialize in the tender branches and buds of Chinese roses, absorbing sap and affecting the normal growth of Chinese roses.
Aphids also have many varieties, the most common of which is the green aphid, which is easy to treat and usually disappears after applying pesticides. There are also black ones that are relatively common. Many flower friends only recognize green aphids but do not recognize black aphids. In fact, they are just different in color and have similar shapes.
Compared with green aphids, black aphids can make people feel more difficult to treat. Many flower friends say that after applying pesticides to black aphids, there are still many on the branches, and the black aphids seem to have not decreased after applying the medicine several times.
In fact, it is not that black aphids are difficult to treat, but that they bite the branches too tightly. After applying the pesticide, although the black aphids are dead, they will still bite on the branch tip and will not fall off, and we think that the pesticide is useless.
When controlling black aphids, in addition to applying pesticides, attention should also be paid to rinsing with water. The next day after applying the pesticide, it is recommended to rinse the position where the aphids are located with pressurized water to rinse down the dead aphids.
Strengthen the prevention of black spot disease in Chinese roses in the rainy April
In April, the spring is cloudy and rainy, which is particularly easy for our Chinese roses to get black spot disease. Once the black spot disease breaks out, a large number of yellow leaves and falling leaves will appear, causing the Chinese roses to become almost bare and seriously affecting their growth. Therefore, it is necessary to strengthen prevention in the rainy April.
For Chinese roses raised outdoors, it is recommended that you spray carbendazim or zineb in time after every rainy day and sunny day. Try to keep it every 5-7 days for prevention.
If you find that the Chinese rose has been infected with black spot disease, immediately remove the diseased leaves, and then spray with a high-efficiency fungicide for treatment. The treatment can use pyraclostrobin, myclobutanil, etc., and it should be sprayed continuously for 2-3 days for more reliable results.
When spraying, pay attention that both the whole plant of Chinese roses and the soil surface should be evenly sprayed. Pathogens usually originate from the soil, so when applying the medicine, the soil surface must be sprayed, but there is no need to water the roots. The leaves near the bottom and inside of the Chinese rose should be sprayed focusly, as these parts are most likely to be infected.
The above introduction about what the black little bug on the branch tip of the spring Chinese rose is and how to strengthen the prevention of black spot disease in Chinese roses in the rainy April is for netizens' reference.