What would be concentration of fenvelerate 20 EC when applied @ 200 ml/ha dissolved in 1000 liters of water?

Correct option is D

Fenvalerate 20 EC (20% Emulsifiable Concentrate)
· Dose = 200 ml/ha
· Dilution volume = 1000 liters of water
To calculate: % concentration in spray solution
Step-by-step:

Therefore, the correct answer is (d) 0.004%.