Root Knots in Plants

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root knots in plants

If you ever gotten into planting a range of vegetables and plants, you must have come across a stubborn word and concept known as root-knot nematodes. Or in simple words, root knots in plants.

So what is this basically?

It relates to a plant parasite which comes from the genus Meloidogyne. These exist directly in the soil and are more commonly found in areas which have hot climates or places which have very small winters.

There are around 2000 plants which are easily getting affected by this. Root knots in plants are actually very common.

They suggest that these areas are prone to facing such complications and the infection can only get worse and increase with time.

When we study and look into how root-knot nematode actually impacts the plants, there are several factors which come into play here.

In this article, I am going to be sharing in detail what are some of the leading reasons as to why this occurs and how to make sure it is not impacting your plant growth completely.

So let’s start:

Root Knots in Plants

how root knots happen

For anyone who is completely invested in creating the perfect setting for their vegetable garden, they should also be looking into ways in which it will be keeping your plants thriving.

This is a kind of disease which can easily attack and destroy a range of plants, impacting your home garden in a number of ways.

But how do they look?

They are actually microscopic in nature and they live off soil. But they are also feasting on plant roots which makes it even harder to manage them properly.

When talking about how the root system is one which is going to be damaged, it will lead to a complete destruction of the plant. Mainly because the plants are not able to absorb the water and nutrients in an effective manner.

Many governments and campaigns work relentlessly to ensure that safety measures and proper investigation is led in major farming and planting campaigns but the problem is still strong and continues to create nuisance.

So what are the signs that there is root knots in plants issue that we need to discuss?

Symptoms of Root-Knots in Plants

One of the main things to know is that you can identify if a plant is suffering from this parasite, merely by looking at it.

It is only possible to confirm its existence when you examine it properly under a test and see where the problem lies.

The laboratory test is quite an elaborative one and it allows plantations to get a proper screening to ensure that the concerns are looked into and answered properly.

When we talk about these symptoms, they are visible on not just the above part of the plants but also what is underneath the ground.

So how do the plants look?

Those which are impacted by this disease will definitely be having a stunted look and it will have discoloration.

And it wont be long before the plant eventually dies.

Seeing the Difference

making the differentiation

Why is it more common in summers? This is because the plants will be easily wilting in the very hot and dry weather.

When it does happen it will be impacting the nutrient deficiencies to a great extent.

However it is something which we need to understand. As it is not just these kinds of symptoms which suggest if nematodes are in fact impacting the plant and its growth.

There can be several supporting factors which you should consider.

Moving on, when we talk of how it is going to impact the roots, you will notice that yes, they have very prominent knots in them.

Even very large and small roots get affected in this way. There will also be swellings in them.

You will notice that the entire root system is actually quite shallow, especially in the areas where the branches are completely dead.

But again, to know properly, you need to have the proper sampling done. And such tests need to be supervised so as to make sure the proper conclusions are drawn.

When you gather samples, they will be showcasing the types of root-knots in plants as well as the quantities in which they are visible.

This allows for you to create a proper control system.

So now that you know how to identify the issues, what it really is, the question lies- is it something preventable?

The good news is- you can manage it effectively.

Prevention of Root Knots in Plants

how to prevent it from happening?

So now you have proof that there are nematodes in the garden, what can you do?

There are several preventive measures which definitely give really good results.

All you need to know is how to make use of them to see really good and effective results. So whar are these measures:

Adapting Root-Knot Resistance Plants

The first and most effective way for you to get rid of the problem is to make use of plants which will not suffer from this issue in the first place.

There are actually a really good vegetable variety which is going to make this easy for you, allowing you to avoid the kind of diseases the plants can suffer from.

When you use these kinds of varieties, they will be allowing you to control the development of disease and diseases in the plants.

Some of the most well-known and highly effective root-knot nematodes to consider consist of and are not limited to :

  • Southern Peas
  • Lima Beans
  • Hot Peppers
  • Sweet Potatoes
  • Paste Tomato
  • Cherry Tomato
  • Tomatoes

So these are some of the leading ones and when we look at bedding plants which will not get impacted by what we call root knots include zinnia, salvia as well as marigold.

You should make sure that the plants are in a secure place with these and they allow for you to get the most of your planting tactics.

Rotation of the Garden

Sometimes all that you need to do is make sure that you are planting in new and fresh areas. This will allow your plants to not get infected by the issues of root knots.

When there is not a lot of new space available, you can look into ways in which you can rotate plants.

This will allow you to make sure that you are now planting resistant plants in such areas which will be yielding good results on their own.

When you are making use of resistant plants, you are allowing this area to be completely free from the nematode population which was growing in here.

It makes for a complete clean area and this usually takes around 3years to be completely flawless and secure.

Using Soil Solarization

This is a relatively new concept but has proven to show many good results. How does it work? It is basically a nonchemical process.

It makes use of soil tilting method. This will be making it very moist. When it does, you will then place some really good transparent polyethylene dropcloths.

They will be put on the region for about 6 to 12 weeks.

And when they are, you will notice that it will be heating the soil. This is carefully managed to a temperature which is not killing the plants but it is definitely ridding it of the nematodes issue.

This should be done so with proper planning and precision.

Harvest Action

While there are several things to consider when harvesting, it all comes down to ensuring that you are also removing all the plants and their roots after harvest season is over.

This is essential so as to ensure that you do not have any unneeded stalks which are existing throughout the winter.

You have to commit on working on the soil by making use of it to last for about 2 to 4 times in the winter season.

This will allow the sun as well as the weather to make sure the unnecessary elements are looked into and taken care of properly.

Making Soil Amendments

Sometimes all you need to do is make sure you have fertile soil in its best state.

This would mean ensuring you have plenty of organic matter to go into it. This will be improving the soil’s health and will also be increasing what we call the soil microbial activity in it.

Also make sure you use organic fertilizers which are going to be increasing the growth of soil microorganisms in the plants and especially in the soil.


adapting best gardening practices

When we talk about gardening and planting vegetables, it is also essential to understand what are root knots in plants and how they impact your gardens.

In this article, we talked in detail on how you can ensure your garden is healthy and striving with good plants and proper growth. While highlighting how nematodes cause problems to your efforts.

The leading symptoms and some of the prevention tactics were also looked into so to allow you to have a complete picture on how does these nematodes serve as a nuisance and ensuring you are dealing with it an effective manner.


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