Problems With Kalanchoe

Save

A succulent plant, kalanchoe produces large, glossy leaves with frilled edges. It provides a profusion of small, four-petaled flowers in a range of colors. Kalanchoe is relatively low-maintenance with few problems when grown as a houseplant, but there are some diseases and insects that can damage the plant if they aren't controlled.

Mildew and Mold

  • Powdery mildew and other mold problems infect some kalanchoe. Plants grown in cool, overly moist conditions are more prone to these fungi. Powdery mildew produces a fine webbing on the foliage that then develops into mottled, yellow spots. Phytophthora and pythium are two other common fungus problems. Both cause a moldy growth on the foliage and leaf discoloration. Prune out infected leaves and avoid wetting the foliage when irrigating to control minor problems, or apply potassium bicarbonate for more severe mildew infestations.

Oedema

  • Overwatering and cool temperatures can cause oedema problems, which occur when plants take up water faster than they can use it. The first symptoms are small, cork-like growth on flowers and leaves. These growths harden and turn to a brown or tan color as the disease progresses. A kalanchoe grown in overly moist, warm soil in a room with cool air and little light is most susceptible to this disease. Avoid overwatering, and provide kalanchoes with the proper light to prevent oedema problems.

Growth

  • Many varieties of kalanchoe are quick-growing, causing them to become unwieldy as indoor houseplants. Quick growth can also lead to leggy, unattractive plants instead of full, bushy plants. Applying a growth retardant, such as B-Nine foliar spray, at the start of winter and two applications in summer prevents elongation of the flower stalk and overgrowth.

Insects

  • Common houseplant insects also infest kalanchoes. Aphids and mealybugs are two common pests. Aphids feed on the underside of leaves but are easily controlled with insecticidal soap applications. Control mealybugs with insecticidal sprays or by swabbing rubbing alcohol directly onto the insects. Scale and whiteflies are other insects that may infest kalanchoes and may be managed either by hand removal or insecticides.

References

  • Photo Credit Jupiterimages/Photos.com/Getty Images
Promoted By Zergnet

Comments

You May Also Like

  • White Mold on a Hibiscus Plant

    Hibiscus shrubs need generous, daily watering. These moist conditions help the plant produce bright, vibrant flowers. However, excessive moisture is also ideal...

  • How to Propagate Kalanchoe

    Perhaps the most famous kalanchoe plants are the winter-blooming varieties available at stores around the holidays. However, this species of plants also...

  • How to Control Powdery Mildew

    So you went outside and saw it, that white powdery stuff all over a few leaves near the bottom of your cucumber...

  • Kalanchoe Leaf Problems

    The kalanchoe is a succulent, flowering plant from Madagascar, which the German hybridizer Robert Blossfeld introduced to the Western World in 1932....

  • Do I Need to Stain the Underside of My Deck?

    It is not necessary to stain the underside of your deck for protection from the elements, especially if you use pressure-treated wood,...

Related Searches

Check It Out

How to Make a Vertical Clay Pot Garden

M
Is DIY in your DNA? Become part of our maker community.
Submit Your Work!