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(i)Crop rotation : This helps to break life cycle of pathogens that cause crop diseases
(ii) Rogueing : - Aims at uprooting and destroying crops that harbour crop diseases
(iii) Field hygiene- Destruction of crop residues that carry disease pathogens in a crop field using fire and use of sterile tools
when prunning
(iv) Using clean planting materials - This helps to prevent introduction of diseases in a crop field
(v) Planting resistant crop varieties eg coffee Ruiru II is resistant to coffee leaf rust
(vi) Proper spacing : This prevents overcrowding of crops and hence build up of disease pathogens like fungi
(vii) Proper seedbed preparation i.e removing wood stumps to control armilaria root rot in tea and coffee
john3 answered the question on December 10, 2017 at 11:36
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