The host plants of locust is

The host plant of locusts is Polyphagous.
Polyphagous pests are primarily agricultural pests that feed on economically important agricultural and horticultural crops of wide taxonomic diversity across the globe. They cause immense damage across different crop varieties owing to their generalist and voracious food habits.
Locust is a polyphagous pest with and wide host range. The nymphs and adults feed on berseem, maize, sorghum, bajra, rice, date palm, banana trees, sugarcane fodder crops, grasses, etc.