What is the matter with the dried leaves of dahlia

1. Excessive watering

1. Reason: Dahlias do not like an environment that is too humid. If you water it too much on a normal basis or let it get too much rain during the rainy season, the leaves may dry up.

2. Measures: In this case, you can stop watering for a while, or drain out the excess water in the pot. Wait until the plant returns to normal before continuing to water.

2. Fertilizer concentration is too high

1. Reason: The fertilizer is too concentrated, or the fertilizer is applied directly to the main root, which may cause root burn and then cause the leaves to dry up.

2. Measures: First, suspend fertilization to see if the plant can return to normal. If the situation is more serious, then you have to remove the plant from the pot and trim the roots.

3. Diseases

1. Reason: There is a special disease that can cause dahlia leaves to dry up, called "dahlia dark streak disease". It is highly contagious and can cause serious damage.

2. Measures: Be sure to cut off the dry leaves and handle them properly to prevent the infection from spreading. Then use Benomyl once every ten days or so. Generally speaking, one or two sprays will cure it.