Most Common Kohlrabi Pests & Diseases

You need advice on how to get rid of kohlrabi pests and diseases in your garden?

Make sure to check out all the tips on how to control kohlrabi diseases and pests in your garden or on your balcony in the following chapters.

Kohlrabi Pests

PestHow to control it
AphidsAphids are quite common on kohlrabi plants. Hence, make sure to inform yourself on how to control aphids in your garden.
Cabbage wormsYou may also have to deal with cabbage worms when growing kohlrabi. You can get rid of cabbage worms by using insecticidal soap or other pesticides.
Slugs and snailsSlugs and snails may also try to feed on kohlrabi. Thus, make sure to get some information on how to get rid of slugs and snails in your garden.
Caterpillars and LoopersCaterpillars are also quite common intruders when growing kohlrabi. Make sure to find additional information on how to control caterpillars and loopers.
MothsMoths may also become a problem when growing kohlrabi. You can get rid of moths by using insecticidal soap or deterring them by spraying neem oil onto the leaves of kohlrabi plants.
ArmywormsArmyworms can also do great damage to kohlrabi plants. You can control them by using insecticidal soap or other pesticides.
CutwormsCutworms may also try to feed on kohlrabi. Thus, make sure to get detailed information on how to get rid of cutworms.
NematodesNematodes may also do lots of damage to kohlrabi. You can control nematodes with diatomite or insecticidal soap.
ThripsThrips may also be present when growing kohlrabi. Thus, feel free to also find additional information on how to get rid of thrips.
Flea beetlesFlea beetles are also quite annoying when it comes to growing kohlrabi. You can get rid of flea beetles by spraying stinging nettle liquid or neem oil onto the leaves of your plants.

Kohlrabi Diseases

DiseaseHow to control it
MoldMold can become an issue when growing kohlrabi. Hence, make sure to get detailed information on how to treat mold.
Leaf spotLeaf spot is another disease that is quite common on kohlrabi plants. Hence, make sure to inform yourself on how to treat leaf spot in a proper manner.
RustRust may also be present when growing kohlrabi. Thus, find additional information on how to control plant rust.
Damping-offYou can prevent damping-off of kohlrabi plants by improving germination conditions as best as possible. This includes optimizing lighting and soil conditions.
Black rotBlack rot may also become a problem on kohlrabi. You can try to treat black rot using fungicides or just remove infested plants to prevent the spread of this disease in your garden.
Downy mildewDowny mildew may also do great damage to kohlrabi plants. You can treat downy mildew by spraying neem oil or vinegar onto the leaves of your kohlrabi plants.
ClubrootClubroot is another serious plant disease you may experience on kohlrabi plants. You can control clubroot by altering the soil pH and also by watering your plants less often. If this doesn’t help, make sure to remove infested plants to avoid the spread of clubroot in your garden.
Powdery mildewPowdery mildew is also quite common when growing kohlrabi. Thus, make sure to also inform yourself on how to control powdery mildew on garden plants.

Kohlrabi Pests & Diseases – Summary List

PestsDiseases
SlugsDowny mildew
ArmywormsPowdery mildew
CutwormsRust
Cabbage wormsMold
AphidsLeaf spot
CaterpillarsDamping-off
NematodesBlack rot
MothsClubroot
Thrips
Flea beetles

How to deal with Kohlrabi Pests & Diseases?

As you can see, getting rid of kohlrabi diseases and pests is quite simple.

If you want to learn more about growing kohlrabi in general, you should also have a look at my kohlrabi grower’s guide and my growing kohlrabi FAQ section.

Sources

https://de.wikipedia.org/wiki/Kohlrabi

Own experience.

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