discuss the method of controlling plant disease
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Cultural Methods:
(a) Selection of Geographical area which on the basis of the favourable temperature and humidity requirement for a particular crop but unflavored to the fungi and bacteria.
(b) Selection of field:
Many soil borne diseases are controlled by proper selection of the field. It is quite possible that a particular field soil contains a pathogen species. In that case the particular crop is not sown in that field for several years. The causal organism of Red rot of sugarcane Colletotrichum falcatum survives in the soil for several months. Water drainage is also taken care of while selecting the field.
(c) Choice of the time of sowing:
The susceptible stage of plant growth and the favourable environment for pathogen should not match at the same time.
(d) Disease escaping varieties:
Certain varieties of crop due to their growth characteristics are able to escape from disease. This disease escaping characteristics of the crop is not genetic rather it is due to growth habits and time of maturation. Early maturing variety of pea is capable of escaping powdery mildew and rust.
(e) Selection of seed:
To avoid seed borne diseases, healthy and disease free seeds are essential.
(f) Crop rotation:
Crop rotation is essential for controlling soil borne diseases and pathogens.
(g) Roguing:
Removal and Destruction of Diseased Plant Organs, eradication of alternate and collateral hosts and sanitation of Fields.
thanks
(a) Selection of Geographical area which on the basis of the favourable temperature and humidity requirement for a particular crop but unflavored to the fungi and bacteria.
(b) Selection of field:
Many soil borne diseases are controlled by proper selection of the field. It is quite possible that a particular field soil contains a pathogen species. In that case the particular crop is not sown in that field for several years. The causal organism of Red rot of sugarcane Colletotrichum falcatum survives in the soil for several months. Water drainage is also taken care of while selecting the field.
(c) Choice of the time of sowing:
The susceptible stage of plant growth and the favourable environment for pathogen should not match at the same time.
(d) Disease escaping varieties:
Certain varieties of crop due to their growth characteristics are able to escape from disease. This disease escaping characteristics of the crop is not genetic rather it is due to growth habits and time of maturation. Early maturing variety of pea is capable of escaping powdery mildew and rust.
(e) Selection of seed:
To avoid seed borne diseases, healthy and disease free seeds are essential.
(f) Crop rotation:
Crop rotation is essential for controlling soil borne diseases and pathogens.
(g) Roguing:
Removal and Destruction of Diseased Plant Organs, eradication of alternate and collateral hosts and sanitation of Fields.
thanks
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Answer:isolate the diseased plant from others
Explanation:
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