Pineapple sage - detecting and combating diseases and pests

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The main pest for the pineapple sage are thrips. We explain how to recognize insect infestation and what you can do about it.

Pineapple disease

As a robust and resilient plant, the pineapple sage is less prone to diseases and pests. However, the prerequisites for healthy plant growth are always the consideration of site conditions and appropriate care. Due to care errors, the plants are generally weakened and thus automatically more susceptible to disease and pest infestation.

Thripse - unwelcome guest at the Pineapple sage

Infestation by thrips can be observed more frequently at the pineapple sage. The pests, however, can not make out with the naked eye and have it on the leaves of the plant apart. As the plant continuously loses plant juice, it becomes weaker and weaker and gradually shows various damage pictures.

How can the infestation with thrips be recognized?

First, silvery spots can be recognized on the leaves. These are visible at the feeding sites where the plant loses chlorophyll. If young plants are affected, they show significant inhibitions in their growth.

➔ Tip: If discolouration of the pineapple sage occurs, the affected leaves should be removed as soon as possible.

Gradually affected leaves turn brown and reveal a crippled growth. Those who examine the plant more closely will also be able to recognize small black spots, namely the excretions of thunderstorms.

What can be done against thrips?

The pests can be combated by spraying with soapy water. To do this, mix one liter of water with 15 milliliters of soft soap. However, it is not done with a one-time treatment. For a lasting fight the repeated spraying is necessary. In the case of flying thrips, blue sticky traps can be used. In the predatory mite or lacewing the thrips have natural predators. Especially in heavily infested plants, the application of predatory mites or lacewings directly on the plant offers.

Effective measures in key words:

  • Spray with soapy water
  • blue sticky traps (blue plates)
  • natural predators

Should one proceed by chemical means?

For plants suitable for consumption, chemical pesticides should generally be avoided. Since thrips can be controlled quite well without the use of insecticides, the use of chemical preparations is usually not necessary.

➔ Tip: A proven means of natural pest control is also neem oil. However, corresponding preparations are not suitable for the pineapple sage, as it comes to the clogging of the pores of the leaves by the order of the oily mixture.

What can be done to prevent thrips?

The most effective method against diseases and pest infestation is the regular control of the plants. Not only the tops of the leaves are to be considered. Pests prefer to sit on the undersides of the leaves where they can cause damage and often weaken the plants, often for a long time unnoticed. If leaf discolorations become visible, the affected leaves should be removed immediately and disposed of so that the infestation does not spread to other parts of the plant. If affected plants are too dense in the herb bed, they should be isolated so that the infestation does not spread to the surrounding plants.

Pest infestation by thrips at a glance

Detect and combat pest infestationexplanation
Harming▶ The tiny pests are not recognizable at first.
▶ On an attack, small silver spots on the leaves indicate.
▶ In the further course, the leaves are damaged more intensely, discolour, show a crippled growth habit and finally fall off.
fight▶ Since it is an edible plant, once again chemical pest control is foreseeable.
▶ Effective spraying with soapy water.
▶ In case of heavy infestation natural predators such as lacewings or predatory mites can be used.
prevention▶ A regular check leads to the early detection of possible damage or abnormalities.
▶ The best prevention against pest infestation and diseases is an appropriate care of the pineapple sage.

Healthy plants - avoidance of care mistakes

Pest infestation and diseases on pineapple sage can be largely avoided if you meet the demands of the plant. The location is an important basis. The plants like it warm and humid, but the pineapple sage does not tolerate direct sunlight. Especially in the midst of a blazing midday sun the plant has to be protected.

Also with the irrigation a lot must be considered.The soil should not dry out, which requires regular watering. These should not be measured too abundantly, because the plants do not tolerate waterlogging. If the water can not drain, it will not be noticed. Only when the plant begins to ailing and discards the leaves, it is often recognized that the root rot has already begun.

First aid for care mistakes

If care mistakes are detected in good time, the plants can often still be rescued. Brown leaves are often a sign of too little water. Here it already helps, if the affected leaves are removed and more is poured. It is more difficult in plants that suffer from waterlogging. Quick action is required. The plant is taken from the ground. The wet substrate is removed as far as possible. If the roots already show brown spots and thus clear signs of decay, these root parts are removed. Subsequently, the root ball is allowed to dry before it is placed in new substrate. Subsequently, less is poured accordingly. However, it will not always be possible to rescue plants affected by waterlogging.

➔ Tip: Waterlogging increasingly occurs in potted plants. A drainage of pottery shards applied to the bottom of the vessel is an effective protection against waterlogging.


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