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While an increasing number of examples of innate resistance to disease are being identified in domestic livestock, resistance to the effect of trypanosomes is one of the best-recognized and most thoroughly investigated. Experimental and field studies reviewed in this chapter are providing the bas...
This paper considers entomological and epidemiological criteria for establishing the absence of tsetse and trypanosomosis associated with tsetse eradication programmes. The sampling goal is simple - to maximize the probability of detecting tsetse flies in the field or trypanosomes in hosts, if th...
The Zika virus epidemic that emerged in northeast Brazil in 2015 occurred during an unusually warm and dry year. Both natural climate variability as well as longterm trends were responsible for the extreme temperatures observed1 and these climate conditions are likely to have contributed to the t...
Several techniques used to eliminate viruses from cassava are described, namely heat therapy, apical tissue culture, and micropropagation. Virological tests to index cassava viruses are also indicated as follows: ELISA, dsRNA, mechanical inoculation of leaf sap in plants on Chenopodium quinoa, an...
The high demand for good quality planting materials of improved cassava (Manihot esculenta Crantz) cultivars by the farmers in sub-Saharan Africa are not fully met in a timely manner. Perishability, slow multiplication rate and bulkiness of planting materials, weak definition of multiplication re...
Sub-Saharan regions are exceptional ecosystems in which crop plants suffer from dual impairment of low soil fertility and gate crasher phytopathogens. Worldwide common practice of intensive agriculture with the use of agrochemical inputs is ground lacking truth for the small holder farmers of Sub...
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