What are the diseases and pests of osmanthus trees?
This article introduces the related knowledge of diseases and pests of osmanthus trees, which is a very good experience. It is recommended to collect it!
What are the diseases and pests of osmanthus trees?
If there are pests on osmanthus trees, natural enemies can be protected, such as black lady beetles, small flower bugs, Thrips flavidulus, Chinese grasshoppers, and large grasshoppers. In winter, clear the weeds under the trees and burn them in a centralized manner. Use lime sulfur solution to kill the overwintering adult mites, larval mites, and eggs. Spray pesticides such as Belabao, Qimycin emulsion, Thiacloprid, Cypermethrin, and Mite Death to control the concentration.
Common diseases in the cultivation of osmanthus trees
Brown spot disease: Osmanthus trees may develop brown spot disease from April to October, with yellowish-brown spots appearing on the leaves, and older leaves are more susceptible than new leaves.
Leaf blight: Small light brown spots appear on the leaves of osmanthus trees, which gradually expand and cause the leaves to turn yellow. This disease usually occurs in high temperature, high humidity, and poor ventilation environments, and leaf blight usually occurs from July to November.
(T-J) disease: The (T-J) disease of osmanthus trees often occurs from April to June, usually in high temperature and high humidity environments, with gray-brown or gray-white spots on the leaves.
Main pests in the cultivation of osmanthus trees
The main types of pests affecting osmanthus trees include刺蛾类 (spiny caterpillars), mites, scale insects, whiteflies,霜天蛾 (awn moths), bagworms, wax cicadas, and short-horned grasshoppers, among which mites, scale insects, and whiteflies are the most severe and common.
Disease and pest control of osmanthus trees
If there are pests on osmanthus trees, natural enemies such as black lady beetles, small flower bugs, Thrips flavidulus, Chinese grasshoppers, and large grasshoppers can be protected. In winter, clear the weeds under the trees and burn them in a centralized manner. Use lime sulfur solution to kill the overwintering adult mites, larval mites, and eggs. If the number is small, they can be manually captured.
In the early stage of the disease, spray with Belabao (main ingredient is azocycline) or Qimycin emulsion (main ingredient is abamectin). Additionally, pesticides such as Thiacloprid, Cypermethrin, and Mite Death can be sprayed.
This article shares the complete introduction to the diseases and pests of osmanthus trees for everyone to learn and understand!