Common diseases of catalpa and their prevention and treatment

Anthracnose disease of catalpa ovata and its control

When the catalpa tree is infected with anthracnose, its leaves and tender shoots are severely damaged. The disease is prone to occur under high temperature, high humidity and poor ventilation. If the catalpa tree is infected with anthracnose, its leaves will wilt and fall off after the disease occurs.

Therefore, when protecting against anthracnose of catalpa trees, we must maintain them in a ventilated and light-permeable environment and provide good water and fertilizer maintenance. This will naturally improve the plant's disease resistance. However, if the plant is infected with anthracnose, you can spray disease-preventive agents such as 500 times diluted Anthracnose Fumei wettable granules at this time for prevention and control. The frequency is once a week, and 3-4 consecutive sprays can control the disease in an orderly manner.

Root-knot nematode disease of Catalpa ovata and its control

The root system of the catalpa tree is often harmed by root knot nematode disease. Generally, its main root, lateral roots or small roots will be infected. This disease will cause some tumors to form on the roots of the catalpa tree, and then the root system will slowly rot, and eventually the entire plant will die.

For this disease of catalpa, because it is quite stubborn, quarantine should be strengthened before planting catalpa to avoid bringing in diseased seedlings. However, if it occurs, 10% chlorpyrifos powder or 98% dazomethane micropowder can be applied to the roots for prevention and control.

The above are two common diseases of catalpa trees and their prevention and treatment. To grow catalpa trees well, you must take necessary protective measures against their diseases. Only in this way can you ensure the healthy growth of catalpa trees.