Everything a florist needs to know about combating spider mites and other pests on marigolds

Everything a florist needs to know about combating spider mites and other pests on marigolds

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Marigolds are one of the most popular annual flower crops. They look beautiful, are unpretentious to growing conditions, and are quite resistant to diseases and pests. However, they too can sometimes be in danger.

If a flowering, healthy plant suddenly quickly withers and withers, then it is possible that it was struck by pests.

The article tells in detail about the pests that infect flowers, provides photos of insects, and also provides information on methods of dealing with them.

Description and photos of parasites, measures to combat them

Below is a description of various types of pests, their photos are given and measures to combat them are presented.

Who eats flowers and eats leaves?

In long damp weather, holes become noticeable on the foliage of the flower, and constrictions on the stems. This is a sign that the plant has settled:

  • snails;
  • slugs;
  • caterpillars.

They eat the large leaves of marigolds and the lower part of the stems of large varieties of this crop.

Basically, the process of eating leaves occurs at night.

Usually pest control is carried out using folk methods:

  • Pour a mixture of wood ash with lime around the flower.
  • A mustard solution is also effective.
  • Spray the leaves with special products purchased from a gardening store.

If you want the marigolds to regain their former beauty again, put chopped potatoes and apple wedges next to them.

Spider mite: how to treat a plant when a spider web appears?

Spider mites most often damage young seedlings. It feels good in dry air. And if the summer turned out to be especially hot, then the tick will easily damage even adult marigolds. Take action in time, otherwise the plant will dry out and soon die. Signs of the appearance of a tick are a whitish shade on the leaves. The web must be cleaned by hand, so as not to injure the delicate leaves.

Prevention and control measures:

  • High humidity is maintained around the marigolds.
  • Try to process marigolds with concentrated tobacco infusion:
    1. Dissolve 300 grams of shag (or tobacco) in three liters of plain water.
    2. After a couple of days, strain the solution and add about 10 liters of water.
    3. Next, take laundry soap, grind and add to the mixture. Stir until everything is dissolved.

    The resulting infusion is treated with the affected marigolds. Soon the spider mite will retreat, because it cannot stand the smell of tobacco.

How to deal with aphids?

One of the worst pests for marigolds is aphids. She is able to destroy the plant. The parasite settles on all parts of this garden culture - from leaves to roots. And it literally sucks in the juice from the cells and secretes poison. As a result, the leaves deteriorate and die off. Their complete deformation occurs, the tops of the plant are bent.

If, in addition to the above signs, you notice sticky sap on the leaves, this is the main sign of aphids.

Control measures:

  1. Pour a gentle stream of cool water over the marigolds from under the hose.
  2. Treat with chemicals: Iskra, Biotlin, Intavir.

To prevent the reappearance of aphids on parts of the plant, ten days later, another treatment is carried out. For prophylactic purposes, they are treated with one of the above solutions after precipitation.


The appearance of these parasites can be noticed by the appearance of holes on the flower, after the formation of which the marigolds begin to rot and dry out. The buds die without even opening.

Methods of struggle. With the onset of the first warm summer days carry out prevention - treat the garden:

  • Fitoverm;
  • Bison;
  • or Tsvetolux Bau.

It should be noted that all folk methods and means in this case will not bring any result.


This malicious pest affects only those marigolds that gardeners grow in greenhouses or in specially equipped greenhouses. The main reason for the appearance of the whitefly is very dry air and intense heat. She feeds on sap from the leaves, so they can turn black and begin to wilt.

How to fight:

  • If there is a lot of whitefly, the gardener needs to apply the chemical Aktara.
  • Alternatively, you can put containers with a bleach solution near the plants. Whiteflies cannot tolerate the strong smell of chlorine.

What to do if caterpillars eat up the foliage?

Caterpillars often eat marigold foliage. They gnaw at the leaves and the plant soon loses its decorative and flowering appearance.

Caterpillars can wrap the larvae in leaves. Therefore, carefully inspect the foliage for the presence of pest eggs.

Control measures:

  • In order to get rid of the caterpillar, you need to regularly spray the marigolds with chemicals to combat pests.
  • If the caterpillar is eating leaves, dust the plants with ash.

Marigolds in the garden as a means to protect other crops

Gardeners adore marigolds for their unpretentiousness, ease of cultivation and resistance to diseases and pests (what diseases and pests affect marigolds?).

Marigolds can be used to heal the garden. These flowers repel pests with their scent. Also, flowers secrete substances that disinfect the soil well.

If you want to scare off a nematode that eats foliage and buds of roses and phlox, then plant marigolds next to these crops:

  • Flowering plants should be sprayed with an infusion of marigold flower - it fights well with bugs and flea beetles.
  • Also, gardeners treat the bulbs of plants with this infusion before planting in order to protect them from May beetle larvae.

Marigolds are not only beautiful, pretentious to care for and quite resistant to pests and diseases of the plant. They are also excellent protectors for their garden neighbors and are generally very useful flowers.

We suggest watching a video on how to protect other garden crops from pests with the help of marigolds:

Marigolds are a favorite culture not only for novice gardeners, but also for experienced florists. The culture is very unpretentious, drought tolerant and not capricious in the choice of soil. Take care of them, protect them from pests - and then they will delight you with their beauty and aroma.

Thus, you should pay attention to the first signs of pests at an early stage. This is the only way to stop the death of the flower. Take care of the marigolds, and they will delight you with their blooming beauty and scent.

Watch the video: Permanently Kill Spider Mites on Plants. How to Identify + Debugging Treatment (August 2022).