How to Treat Osmanthus with Whitefly Infestation
The editor provides you with knowledge on how to treat osmanthus affected by whiteflies in the field of green plants and flowers, as follows:
Apply pesticides: Spray a pesticide such as天王星 (Tianwangxing) or 艾美乐 (Aimeile) every 7 to 10 days. Biological control: Release natural enemies of whiteflies in the osmanthus garden, such as ladybugs and green lacewings. Physical control: Take advantage of the strong attraction of whiteflies to yellow, and insert sticky yellow boards near the trees. Maintenance methods: Strengthen the cleaning of the garden and pruning work to improve ventilation and light penetration.
How to Treat Osmanthus with Whitefly Infestation
1. -- Applying Pesticides --
When the density of whiteflies on osmanthus is high and the damage is severe, but there are few natural enemies, chemical pesticides can be used for spraying. This should be done during the adult or larval peak hatching period. Pesticides such as 天王星 (Tianwangxing), 艾美乐 (Aimeile), or 阿克泰 (Aketai) can be used, and they should be sprayed every 7 to 10 days, for a total of three to four times.
2. -- Biological Control --
When osmanthus is infested with whiteflies, biological control methods can be used for management. Release natural enemies of whiteflies in the osmanthus garden, such as ladybugs, green lacewings, and parasitic wasps like the Stelis agaonias and yellow aphid wasps, which can effectively control whiteflies and cause minimal harm to the plants and the ecological environment.
3. -- Physical Control --
Take advantage of the strong attraction of whiteflies to yellow by inserting yellow boards or plastic sheets near the osmanthus trees and coating them with sticky oil. Then, shake the osmanthus branches to make the adult flies stick to the yellow spots, which serves as an attract-and-kill method. Additionally, a vacuum cleaner can be used to capture adult flies, reducing the density of whiteflies.
4. -- Maintenance Methods --
To prevent osmanthus from being harmed by whiteflies, it is necessary to check the undersides of the leaves for whitefly bodies when introducing seedlings to fundamentally prevent the invasion of pests. Also, strengthen the cleaning of the garden and the pruning of diseased and weak branches to improve ventilation and light penetration among the plants.
The detailed information on how to treat osmanthus affected by whiteflies has been introduced above. I hope it can be helpful to you!