Many fungal diseases are seen in cotton cultivation. Due to which the yield of cotton has a very bad effect. Most fungal diseases are seen after the flowering stage. Our farmer brothers do insect control very well. Due to lack of adequate information about fungal diseases, many farmer brothers have to face losses. ( cotton crop diseases )
Where there is a possibility of a good yield. Due to the outbreak of fungal diseases, there is a considerable decline in yield. So that this does not happen, farmer brothers, today we are going to talk about the major fungal diseases on cotton crop and their remedies. So that you are successful in treating them in time. It helped in increasing the yield of cotton. We will know in detail.
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Why is it important to know about diseases?
Farmer brother, see if our doctors do not know about the patient’s disease, then how will the treatment be done. In such a situation, it will take a lot of time, the cost of money will increase and the disease will continue to increase day by day. It is important to know about the disease so that this does not happen. So that he can be treated in time. Avoid our loss. Similarly, if we are not aware of the diseases on cotton crop, then we will not be able to treat it in time. We will suffer a lot.
Major Cotton crop Diseases and There Management –
1. Alterneria leaf blight
In this, you will see that brown spherical, crooked type stains will be found in cotton leaves. When a lot of stains are collected. Then it appears quite clear. Apart from this, some part of the leaves will appear destroyed. After some time, the leaves will be seen drying and falling. This disease can occur at any stage of cotton. Most of this is seen on 45-60 days of cotton.
Due to this disease, the crop comes under stress. Plants become incapable of their development. Overall, you will see a decline in yield. This disease is caused by a fungus called Alternaria macrospora.
To prevent crop damage from this disease, you can spray fungicide made of mancozeb or copper oxychloride 2-3 times at an interval of 15 days at an interval of 2 kg per hectare, or you can also use other fungicides.
2. Bacterial blight
In this, you will see the plants on which it will be outbreak. Black spots will appear on the lower surface of their leaves. Also, when it increases, it starts appearing on the upper surface of the leaves. As a result, the plants are not able to cook properly. The problem of full melting will be seen. As well as the problem of bond decay, it is mainly caused by a fungus called Xanthomonas campestris p.v malvacearum. This fungus continues to destroy the cells of the leaves. It continues to build up the growth system of the plant. As a result of which the crop is damaged.
To prevent this, you can clean 100ml/kg cotton seeds with sulfuric acid. You can also take carboxin or oxycarboxin at the rate of 2 g /kg to treat the seeds. You can also destroy the diseased plant. Apart from this, you can also use other fungicides for spraying.
3. Fusarium Wilt
In this, you will see that the cells of the upper lower end of the twigs of the plant on which it is attacked will look blackish brown. Also, there will be a decrease in the number of fruits and flowers on the plant. The leaves will be peeled and seen drying. As a result, there is a decrease in the yield and quality of cotton. This disease fusarium oxysporum f. sp. Caused by a fungus called Vasinfectum.
To prevent this, you can treat seeds with carboxin or carbendazim. You can uproot and destroy the diseased plant so that it does not spread to other plants. At the same time, you can also increase the amount of potash fertilizer. It also gives a lot of benefit. You can also use cow manure. In addition, you can also use 0.05% benomyl or 0.1% carbendazim fungicide.
4. Grey or Areolate mildew
Farmer brothers, you will see that a light brown layer will be seen on the cotton leaves. If the outbreak is high, the leaves will be seen falling prematurely. Due to this disease, plants are not able to make their food properly. You will see the dropping of fruits and flowers. For this disease control, you can use carbendazim or wettable sulfur fungicide, as well as you can choose disease-resistant seeds. Do not use excessive urea fertilizer. You can destroy the diseased plant.
5. Boll rot
In this, you will see black brown stains on the cotton bond. Which can appear to come out from inside or outside. The bonds of plants suffering from the disease are not able to bloom. There will be a problem of bone rot before time. There is a lot of yield loss. The crop that has come in hand is seen to be lost. These diseases are mainly Fusarium moniliforme, Colletotrichum capsici, Aspergillus flavus, A. Niger, Rhizopus nigricans, Nematospora nagpuri and Botryodiplodia sp are caused by fungi.
To prevent this, you can spray carbendazim 1kg or mancozeb 2 kg/ha after an interval of exactly 15 days after 45 days.
6. Verticillium wilt
The outbreak of this disease is mostly seen in the stage of fruit formation from flowers. In this, you will see that the leaves of the plant will appear yellow, as well as leaves like leaves like gardens. The edges of the leaves will be seen drying. At the same time, you will see less size of the bond. Due to this disease, there is a lot of damage. This disease is caused by a fungus called Verticillium dahliae.
To prevent this, you can spot drenching of 0.05% Benomyl or 0.1% Carbendazim fungicide . In addition, you can treat carboxin or carbendazim at the rate of 4 g/kg. You can also use cow manure or earthworm manure in the fertilizer. Apart from this, the farmer should not take the same crop every year. You can see it.
7. Cercospora leaf spot
In this, farmer brothers will see brown stains on the leaves. Dark brown will appear on the sides, causing the plants to become stressed. The disease is caused by a fungus called Cercospora gossypina.
To prevent this, you can spray mancozeb or copper oxychloride fungicide at the rate of 2 kg / ha. You can spray 2-3 times at an interval of 15 days. Apart from this, you can also spray other fungicides.( cotton crop diseases )
8. Myrothecium leaf spot
In this, you will see white stains on the edges of the leaves like the color of the girl, which will later be seen piercing the leaves. Due to this, there is a dropping of fruits and flowers. This disease is caused by a fungus called Myrothecium roridum.
To prevent this, you can spray mancozeb or copper oxychloride fungicide at the rate of 2kg /ha. You can spray 2-3 sprays at an interval of 15 days. You can destroy the diseased plant.
9. Tobacco Streak Virus
In this, you will see the top leaves of the plant becoming a different size. At the same time, light purple stains will appear on the leaves. Due to this disease, the plant is not able to grow properly. There is a considerable decline in the yield of the crop. To avoid this, you can spray acephate.
10. Root rot
In this, if you see the plant uprooted, you will see the roots of the plant drying up. After some time, the plants will appear to dry up. To prevent this disease, you can treat the seed with Trichoderma viride at 4g/kg or Pseudomonas fluorescens at the rate of 10g/kg seed. Also for spot drenching you can see 0.1% Carbendazim or 0.05% Benomyl. Can you take it? The use of cow dung manure is also very beneficial. You can quickly adjust the sowing time. ( cotton crop diseases )
Pro Tip:
Farmers brother you must use tonics, pesticides and necessary fertilizers along with fungicide for fungal diseases.
In tonic you can take Planofix tonic or Biovita tonic.
Also Checkout:
Some frequently asked questions?
Can we use only the above-mentioned fungicides? No. There is nothing like that. You can also use other fungicide.
Can we take insecticides along with fungicides? Yes.
What happens if we don’t use fungicides? You may see a decline in yield.
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Thank you very much for reading the post and giving your precious time, till then take care of yourself and your crop!! Jai Hind Jai Bharat!!