LNZ Group·Herbicides
Primus
Primus is a post-emergence herbicide, a suspo-emulsion with 2,4-D 2-ethylhexyl ester and florasulam, for cereal crops and maize against annual and perennial broadleaf weeds.
Main advantages
- 2,4-D ester and florasulam — two different modes of action
- Visible symptoms after 1–3 days — on susceptible weeds
- Overgrown weeds — upper end of the rate, 0.6 l/ha
- From +10 to +25 °C — the temperature window for treatment
Overview
About this product
Primus combines two systemic substances with different modes of action: 2,4-D 2-ethylhexyl ester, 452 g/L, and florasulam, 6.3 g/L, in a suspo-emulsion. Both penetrate weed tissue and spread through the plant within an hour.
The first symptoms on susceptible broadleaf weeds are visible after 1–3 days. Cereals are sprayed from the start of tillering to the formation of the second internode (BBCH 21–32), maize at the 3–5 leaf stage (BBCH 13–15), at 0.4–0.6 l/ha; on overgrown weeds the upper end of the rate is used.
Temperature from +10 to +25 °C. Pack size 5 l.
Application
Rate, timing and crops
- Rate
- 0.4–0.6 l/ha
- Timing
Spraying on growing weeds: cereals from the start of tillering to the formation of the second internode (BBCH 21–32), maize at the 3–5 leaf stage (BBCH 13–15).
Temperature from +10 to +25 °C, optimally above +15 °C during active weed growth; on overgrown weeds the upper end of the rate is applied.
- Crops
- CerealsMaize
Figures from the manufacturer, LNZ Group. Source page
Register rates
State register, entry 12132 · registration expired 31.12.2025
Злакові зернові, кукурудза
The register prints the crops without rates.
Source: State register of pesticides and agrochemicals, file of 19.10.2026.
Specifications
Active ingredients and formulation
| Type | Herbicide |
|---|---|
Active ingredients
| |
| Formulation | SE · suspo-emulsionUkrainian label code СЕ |
| Target Crops | Cereals, Corn |
| Mode of action | 2,4-D 2-ethylhexyl ester (phenoxy-carboxylic acids, HRAC group 4) acts as a synthetic auxin and disrupts growth regulation in susceptible broadleaf weeds. Florasulam (triazolopyrimidines, HRAC group 2) inhibits acetolactate synthase (ALS), an enzyme of amino acid synthesis; both substances act systemically. |
| Resistance group | Group 4 · synthetic auxins; Group 2 · ALS inhibitorsHRAC |
| Hazard class | Class 3 · moderately hazardous |
| Registration | Expired 31.12.2025Remaining stock may be sold until 31.12.2027 Certificate А 07322 · register entry 12132 |
| Registrant | ТОВ «Дефенда»; ТОВ «Сімейний Сад» (Ukraine) |
| Manufacturer | LNZ Group |
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Questions & answers
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- The registration expired on 31.12.2025. Remaining stock may be sold until 31.12.2027, but not past the batch's shelf life; after that ADAM accepts no new vendor offer for it.
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