Combining host plant defence with targeted nutrition: key to durable control of hemiparasitic Striga in cereals in sub-Saharan Africa?

Host plant defence mechanisms (resistance and tolerance) and plant nutrition are two of the most widely proposed components for the control of hemiparasitic weeds of the genus Striga in tropical cereal production systems. Neither of the two components alone is effective enough to prevent parasitism and concomitant crop losses. This review explores the potential of improved plant nutrition, being the chemical constituent of soil fertility, to fortify the expression of plant inherent resistance and tolerance against Striga. Beyond reviewing advances in parasitic plant research, we assess relevant insights from phytopathology and plant physiology in the broader sense to identify opportunities and knowledge gaps and to develop the way forward regarding research and development of combining genetics and plant nutrition for the durable control of Striga.

Automated summary

Host plant defense mechanisms (resistance and tolerance) and plant nutrition are key components for controlling Striga weeds in tropical cereal production systems. However, neither alone is effective in preventing parasitism and crop losses. Improved plant nutrition can enhance plant resistance and tolerance against Striga. Advances in parasitic plant research, combined with insights from phytopathology and plant physiology, can help identify opportunities and gaps to develop strategies combining genetics and plant nutrition for sustainable Striga control.