What medicine should I spray on the crabapple flowers if they have insects?

1. What medicine to spray

There will be many insects on the crabapple flowers, and different insects require different medicines to treat them, so you should first determine which type of pest is on the plant before spraying the medicine.

1. Aphids: They will attack the branches and leaves of the plant and cause the leaves to curl. The diseased leaves should be cut off and it should be sprayed with some imidacloprid water dispersible agent or carbosulfan emulsifiable concentrate.

2. Gypsy moth: It mostly appears on the back of leaves. After it is discovered, it should be sprayed with pyrethroid insecticides. You can also use phoxim emulsifiable concentrate for prevention and control.

3. Red spider mites: After the plant is attacked by red spider mites, some small spots will appear on its leaves. You can buy drugs such as fenbutatin emulsifiable concentrate or triazotin wettable powder for spraying.

4. Longhorn beetle: This is also one of the common insect pests. If you find it, you must use medicine immediately. You can use cypermethrin contact-breaking microcapsules to kill it. If it appears in the tree trunk, you can use DDT to prevent and control it.

2. Precautions

After an insect infestation occurs, not only should you use pesticides immediately, you should also place it in a location with good air circulation as soon as possible and properly trim the leaves that are more infested with insects.