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Tree Fern Insects

Tree ferns are special types of ferns that are characterized by large, tree-like stems. Tree ferns are most common in humid, tropical locations, but some species can be grown in subtropic locations as well. As with any plant, insects and pests can become a major problem. As long as this problem is addressed promptly and properly, it is generally fairly simple to remedy an infestation.

  1. Mealybugs

    • Mealybugs commonly infest tree ferns. Mealybugs are small, white, scale insects that often hide beneath the roots, stems and leaves of tree ferns. Presence of a white, fuzzy covering over limbs and leaves is a sign of mealybug infestation. Leaf yellowing and leaf loss are also signs of a potential mealybug infestation. Mealybugs can kill tree ferns if they are not exterminated. The best way to avoid a mealybug or any other type of infestation is to carefully examine any plants before you buy them.

    Controlling Mealybugs

    • The earlier you notice a mealybug infestation, the better chance you will have of controlling it. Wash any mealybugs off of the plant with water, then remove the fuzzy white colonies using a soap or oil spray. Make sure to completely remove this material in order to kill off young mealybugs. Use a spray that is specifically designed to control mealybugs and similar insects. Using a pesticide designed to kill off and prevent mealybug infestations can also help.

    Other Insects

    • Although not quite as common as mealybugs, aphids, various forms of mites and other types of scale bugs can infest and damage tree ferns. These insects, like mealybugs, tend to be located beneath the roots, stems and leaves of tree ferns. Routine inspection of these areas can help you diagnose an insect infestation before your tree fern is damaged. As with mealybugs, oils and insecticide soaps can be used to destroy infestations. Using an insecticide specifically suited to the type of insect you are trying to kill will help you keep these bugs from returning.

    Viruses

    • Some insects, including aphids, can carry viruses that can kill your tree fern. If your tree fern contracts a virus, it may die, even if you take proper care to kill off the insects. Once your tree fern has contracted a virus, there is little you can do to help it other than making sure it gets the nutrients it needs to fight the virus. Preventive sprays are useful in preventing viruses from spreading among multiple tree ferns.

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Specialty Gardens
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