Weeds, insects and diseases are basic challenges for most crop farming enterprises. They can cause up to total failures of crops if not dealt with effectively. Farmers, therefore, dedicate various activities and budget to make sure they are well under control to ensure optimum yields of their crops.
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Their occurrence may vary from location, type of crop and even time of cropping. There are several technologies and methods of dealing with weeds, insects and diseases.
Moreover, the method and inputs used to control weeds, insects and diseases are dependent on a number of factors. Amongst them are; location, type of input, availability of input for control, the cost of the input, ease of application of method or inputs, efficacy etc.
The types of control include chemical (organic/synthetic), mechanical, biological and physical (manual). However, out of the several methods, synthetic chemicals have been the way of most farmers in Africa, citing reasons of convenience and efficacy.