What is the maximum application rate for 2,4-D herbicide within 5-30 metres of a water body?

What is the maximum application rate for 2,4-D herbicide within 5-30 metres of a water body?

• A. 1.2 kg active ingredient/hectare
• B. 0.5 kg ai/ha
• C. 2.0 kg ai/ha
• D. No limit specified

Answer: (A)

Near a water body, the rules tighten to protect aquatic life, so the allowed amount of 2,4-D is capped. The maximum you can apply within 5–30 metres of water is 1.2 kg of active ingredient per hectare. This rate cap, together with the buffer distance, reduces the chance of drift and runoff reaching the water. So, even if the broader label would permit more in open field, within that 5–30 m zone you must not exceed 1.2 kg ai/ha. The other figures either represent lower rates or exceed the restricted limit, and saying there’s no limit isn’t accurate. Always follow the label and provincial rules for buffer zones and rates.

Near a water body, the rules tighten to protect aquatic life, so the allowed amount of 2,4-D is capped. The maximum you can apply within 5–30 metres of water is 1.2 kg of active ingredient per hectare. This rate cap, together with the buffer distance, reduces the chance of drift and runoff reaching the water. So, even if the broader label would permit more in open field, within that 5–30 m zone you must not exceed 1.2 kg ai/ha. The other figures either represent lower rates or exceed the restricted limit, and saying there’s no limit isn’t accurate. Always follow the label and provincial rules for buffer zones and rates.