Potato and pest control methods

Potatoes are quite often exposed to a wide variety of pests and diseases at different stages of their growth and storage. Therefore, the care of potatoes is necessary both during the period of plant growth and during the storage of tubers throughout the entire time.

Potato diseases most often occur as a result of damage to the plant or its fruits by viruses, infections, and fungi. Potato pests are represented by a wide variety of insects, some of which reach sizes up to 5 cm in length.

Potato diseases and methods of dealing with them

The most common diseases of potato are various types of rot, late blight, blackleg, wireworms, scab, wilting and other viral diseases. Among these diseases, those that are most common are also present.

Potato late blight

Most likely, every gardener encountered a coating of dark brown spots on the stems of potatoes, leaves, and tubers. This disease is called late blight. It refers to fungal diseases and most often manifests itself in a plant after a flowering period. You can get rid of the disease by spraying with chemical agents.

But late blight can be prevented if only healthy planting material is planted. It is necessary to exclude the placement of tomatoes near potatoes. Potatoes need to be earthed up as high as possible since the spores of a fungal disease are carried mainly by wind and rain. It is not recommended to plant potatoes in the same place for several years.

Potato rot

Ring, wet or dry rot most often affects potato tubers during storage in the cold season. These diseases of potato during storage are easy enough to detect during the inspection of tubers. You can get rid of these diseases by treating potato tubers before planting, as well as during storage.

It is best to fertilize potatoes with nitrogen fertilizers that prevent such diseases. Particular attention is paid to regular loosening of the soil, especially to prevent wet rot.

It is also necessary to regularly inspect potatoes for signs of disease and discard affected tubers.

Dry rot affects mainly damaged potatoes by cuts during harvesting.

How to deal with the blackleg

Among the bacterial diseases of potatoes, it is necessary to note the blackleg, which most often affects potatoes growing in excessively moist soils.

It is characterized by a pronounced darkening in the root, lower stem and lower part of the leaves. It is almost impossible to cure the black leg of the affected bush. Therefore, it must be removed along with the roots in order to avoid infection of other plants.

Scab on potatoes

Among the fungal diseases of potatoes, the scab should be distinguished, which is already visible at the time of harvest. Potatoes affected by scab very quickly become infected with rot of any shape and thereby can destroy part of the crop during storage.

Most often, this disease is a consequence of an excessive amount of lime in fertilizers, which must be reduced. A regular change of planted potato species will help prevent the spread of this disease.

Potato pests and control

Potato pests are often represented by lesions of potato plants and tubers by the Colorado potato beetle, bear, wireworms, potato nematodes, and naked mucus.

Colorado beetle

The Colorado potato beetle is considered the most dangerous pest when growing potatoes. Both the bugs and the larvae of this insect infect potatoes almost from the first days of shoot growth. They multiply rapidly in hot weather.

Regular treatment of the Colorado potato beetle with chemicals or folk remedies helps to get rid of the excessive amount of these insects, but most often it is completely impossible to get rid of it.


The bear is often called an animal, although this pest belongs to insects. Most often it affects plants that grow near water bodies.

Medvedka lays a lot of eggs under the soil, which affects other vegetable crops. To combat this insect is simply necessary, for which they use a vinegar solution at the rate of 3 cups of vinegar per 10 liters of water.


Among the other commonly encountered potato pests, wireworms who make moves in potato tubers and gnaw stems from the ground should be noted.

To prevent damage to potatoes, it is necessary to deal with wireworms by treating the tubers with chemicals even during the planting of the vegetable, for example, “Dursban” or “Bazudin”.

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