If you notice feeding spots on the leaves of your canna, also known as Indian flower cane, pests are probably the cause. In this article you will learn which pests harm your plants, how you can save your favorites and protect them from further attacks.
Which pests eat the leaves of the canna?
Canna is often attacked bysnails. A slug infestation can be recognized by large holes in the leaves and traces of slime. Whiteflies can also cause small holes or yellow leaf spots. They fly away in droves when lightly touched.
Are feeding spots on the leaves dangerous for the canna?
Small eating spots on the leaves of individual canna plants are not initially dramatic. However, the cause should be identified quickly and acted upon accordingly. The quicker you react, the better the chances are for the plants. Once pests have spread, they arehard to get rid of again In the worst case, they cause so much damage that the plants die. Basically, you should also ensure he althy and resilient plants through good care, correct watering and fertilizing.
How do you save the canna leaves from eaten snails?
If you have a snail infestation, you shouldcollect the small eaten animals Search your plants thoroughly at night or on a rainy day. They often hide under the leaves. Repeat this three nights in a row to capture a majority of the snail population. Collect the snails in a bucket and take it to a sufficiently moist, far away location. If this measure is not enough, you can also spread slug pellets. Be sure to follow the instructions for use when using.
How to protect canna leaves from whiteflies?
The whitefly is usually found on the underside of the canna leaves. To get rid of them, you can use so-called yellow boards or yellow stickers. The adult animals remain attached to it. An alternative is theuse of beneficial insects chalcid wasps or parasitic wasps like to eat the flies and quickly ensure peace. In any case, the pests should be combated as quickly as possible. If the whiteflies spread too much, it is difficult to get them under control again.
Tip
Where the hole pattern in the leaves comes from
Have you ever noticed holes in a repeating pattern on the leaves of your canna? These are probably feeding holes from slugs. They prefer young leaves that are still curled. When a eaten leaf rolls up, the hole is visible in several places and looks like a pattern.
