Question

What biological control agent is considered most “useful” in managing a wide range of insect pests effectively in agroecosystems?

A A beetle that feeds on kudzu
B A parasite of lady beetles
C A predator of robber flies
D A viral pathogen of lacewings
E A parasite of aphids
Practice Next

Hey! Ask a query

🎓
Think You're Ready for RBI Grade B?
RBI Grade B 2026 Phase 1 Memory Based Paper
  • 200 Questions with Detailed Solutions
  • Section-wise Coverage (GA, English, Quant & Reasoning)