Sphenoid tree is prone to Verticillium wilt

Content

• Sphenoid tree is prone to Verticillium wilt
• Against Verticillium wilting, only prevention helps
• What to do if there is evidence of wilting disease?
• Mildew - typical in hot summers
• Tips

Spots and wilted leaves are often a sign of disease

Sphenoid tree is prone to Verticillium wilt

The ball-trumpet tree (Catalpa bignonioides) is not only a showy appearance, but quite useful: Mainly its leaves contain a slightly fragrant toxin, which reliably keeps mosquitoes away. In contrast to its great relative, the trumpet tree, this variant blooms only very rarely and if, then only at an advanced age. The tree, which is easy to maintain, is rarely attacked by pests, but is quite vulnerable to certain diseases.

Early article Cut the ball-trumpet tree

Against Verticillium wilting, only prevention helps

Unfortunately, the ball-bellied tree is quite susceptible to Verticillium wilt, also known as wilting disease. This is caused by soil-living fungi, which pass through the roots in the pathways of the above-ground parts of plants and block them. As a result, the plant is no longer sufficiently supplied with water and nutrients, so that initially single shoots wither and die and individual leaves turn yellow and / or curl. There is no effective antidote to this usually deadly disease, you can only rely on prevention:

What to do if there is evidence of wilting disease?

If you notice any signs of Verticillium wilting on your bugle tree, you may dare to try another rescue:

Mildew - typical in hot summers

An infection with mildew is easily recognized by the white-grayish, floury-looking fungus that covers the leaves and shoots of the infested tree. This disease is common in very hot summers, but is usually very treatable. For this you can spray the infested ball trumpet tree with a whole milk-water mixture (in the ratio 1:10) for several days in a row.

Tips

Also the - unfortunately very rarely occurring - fire encrusting fungus has fatal consequences for the tree in the rule. The same preventive and treatment measures as for wilting disease apply.