Hobby gardeners have to protect their beloved plants from various pests all year round. Fungus gnats and aphids are particularly common. But there are also small whiteflies that infest your houseplants, herbs or vegetable plants. Find out what you need to know about the so-called moth scale insect and how to combat it.
Recognize moth scale insects
The small white flies are closely related to aphids and scale insects and have nothing to do with the classic fly. A distinction is made between the greenhouse moth scale and the cotton moth scale. Both species occur mainly in greenhouses or indoors, but in rare cases also outdoors, e.g. on balconies. The aphids are 2 to 3 mm in size – with their milky white wings, the females resemble moths, which is where the name comes from.
Both the larvae and adult moth scale insects damage your plants through their sucking activities. This also transmits viruses. In addition, the pests excrete honeydew, which makes your plants susceptible to fungal infestation. Yellow, falling leaves, growth disorders and fruit deformities are the result.
Which plants are particularly at risk?
The following plants are considered particularly endangered:
- Basil and other herbs (also in the home)
- Money tree
- Tomatoes
- Cucumbers
- Beans
- Cabbage
- Fuchsias
- Gerbera
- Geraniums
The insects can only survive for a short time at temperatures around freezing point. However, they find optimal living conditions in the greenhouse, in the home or anywhere where high temperatures prevail. Incidentally, the females lay up to 400 eggs in their short, four-week life. These are elongated-oval and white to yellowish-green in color. Especially in warm places, the small whiteflies have the ideal conditions to multiply rapidly. All the more reason to combat them as quickly as possible.
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Fighting small whiteflies
The first step, of course, is to prevent a pest infestation. Insect hotels in the garden and beneficial insects, such as ladybugs or spiders, can help you to keep the pests away. If necessary, you can strengthen your plants with tansy tea or nettle slurry. Also make sure to ventilate your home and greenhouse regularly and check your plants for pests from time to time. However, preventative measures are not always successful or you may bring the moth scale insects into your home, greenhouse or garden via newly purchased plants. Various methods have proven successful in combating the small whiteflies.
- Yellow tablets 🛒 attract the pests. They stick to them and eventually die.
- Rapeseed oil 🛒 or Neem products 🛒 are also suitable for controlling the moth scale insect. Make sure you also treat the underside of the leaves and repeat the application regularly. You should mix rapeseed oil with a little water before use.
- Ichneumon wasps 🛒 are particularly helpful in the greenhouse or in the home to control pests.
- Predatory bugs are also effective. It is best to give them grain moth eggs as food so that they do not accidentally damage your plants.
- Certain plants, such as the poison berry or the Blue lantern flower effectively control the pests within a radius of six square meters. The little beasts die when they suck on these plants.
- After successful pest control, it is advisable to change the substrate for houseplants.
Do without pesticides
The use of pesticides should really only be considered in an absolute emergency. Such products can cause considerable harm to the beneficial insects in your garden. First try the means and methods listed here to get rid of the small whiteflies for good. Good luck!
Source: meinschoenergarten
