inputs.agby iFarm Ag Group

Reading the label

Compare the active, not the jug.

Two products can carry the same active at different strengths and rates. The fair comparison is what lands on each acre.

9 GENERIC 540 HERBICIDE · COMMERCIAL GUARANTEE: active 540 g/L REG. NO. 00000 PCP ACT CONTENTS: 1,000 L 1 Group number Tells you how it works, and what to rotate with. 2 Active and strength Grams per litre is what you are really buying. 3 PCP number The Canadian registration. Look it up on the PMRA label search. 4 Rate and acres Pack size divided by rate tells you the acres. 5 Directions Crops, staging, tank mixes, intervals and buffer zones.
Fig. 5Illustrative label. The real label is always the final word.

Do the math

Two jugs, side by side.

Plug in the numbers from any two labels and quotes. Nothing here leaves your screen.

Product A

Cost per acre—

Acres per pack: —
Active per acre: —

Product B

Cost per acre—

Acres per pack: —
Active per acre: —

What a tote covers

Pack size against acres.

  • Glyphosate1,500 ac
  • Glufosinate 150 SN740 ac
  • Glufosinate 280 SL1,400 ac
  • Diquat1,450 ac

At popular rates on a past sheet. Your rate changes the acres, so follow the label.

1,000 L
Fig. 2The 1,000 L tote

Things that catch people out.

Same active doesn't mean same product

Salt form, formulation, adjuvant load and registered uses can all differ. Compare the label, not just the name.

Acid equivalent versus active ingredient

Some actives are listed as acid equivalent (a.e.) and others as total active. Make sure you're comparing the same basis.

"Similar to" isn't "registered for"

A generic is only registered for what's on its own label. Crops, staging and tank mixes can differ from the brand.

Where to check a registration

Search the PCP number or product name at Health Canada's label search.