1. Rose stem leaf bee
Hazards: Rose stem leaf wasps are a pest that harms the stems of plants. It causes the branches to wither and, in severe cases, death.
Control method: When pruning roses in winter, check the roots to see if they are damaged by insects. After discovery, you can drop two drops of enemy fear, and then seal the mouth with mud. If the young shoots are eroded, they need to be removed and burned centrally.
2. Nocturnal moth in roses
Hazards: The larvae of the nocturnal moth in roses feed on the leaves of roses. It can also harm flower buds and petals.
Control method: Larvae can be captured manually and adults can be trapped with black light lamps. It can also be sprayed with insects or borer pine, fully diluted and sprayed.
3. Red Spider
Hazards: Red spiders are a common pest. It can harm the leaves, sucking up the sap from the leaves, causing them to dry out and fall off.
Control method: The red spider is small, not easy to find, and it is very easy to recur, which requires a long time for prevention and control. The eroded leaves are removed and destroyed, and then the insects are sprayed with trichloroicide with water. The agent is sprayed on both sides of the leaf, every 15 days.
4. Aphids
Hazards: Aphids are also one of the common pests. It appears all year round, which is more harmful to young branches and new leaves, causing the leaves to shrink and become brittle, and also affecting flowering.
Control method: use a brush or damp cloth to wipe off the aphids, and at the same time cut off all the branches and leaves that have been harmed by the aphids. For the fallen leaves, it is necessary to deal with them in a timely manner to reduce the possibility of egg survival. In addition, you can mix washing powder with water and spray it.