Sporadic-pest
Guides
Apinocis deplanatus
sugarcane rootstock weevil
Apinocis deplanatus, commonly known as the sugarcane rootstock weevil, is a sporadic pest of sorghum and sugarcane in the southern United States. The species is associated with dry conditions and fields where johnsongrass is abundant. Adults overwinter beneath plant residues and infest wild grasses in spring before moving to cultivated sorghum. Larval tunneling in stalks near the soil surface causes the most significant damage, often resulting in lodging and secondary pathogen infection. Economic thresholds have not been established, and chemical control is rarely required.