Yellow sugarcane aphid
- Adult: Lemon yellow and covered in short black spines. Two double rows of dark spots on its back.
- Nymphs: Like adults but smaller and wingless.
- Eggs: Females do not lay eggs but give birth to live young.
Timing of damage: During early growth stages
Type of damage: Purpled or yellowed leaves and stunted growth.
Scouting: Inspect seedlings for aphid presence. However, sugarcane aphids are more common in sorghum than in wheat.
Economic threshold: When 10% to 40% of young plants are infested.