Banana moth—Opogona sacchari
Banana moth adults have grayish brown wings, each one having two black spots. Larvae have brown patches on top with dark brown spots along the sides.
Damage
Larvae feed on roots and the lower stem of queen palms. Roots are often severed causing the main stem to fall over. In some cases, there may be no foliar symptoms at all. Larvae are occasionally seen on larger palms in the landscape, but are more common on nursery stock.
Solutions
Avoid planting infested plants by inspecting the lower trunk of queen palms before purchasing. Banana moth prefers plants that are stressed. Be sure to provide adequate irrigation and proper fertilization. | 
