CHWASTOX NOWY TRIO 390 SL is a selective herbicide with systemic action for foliar application. It is available in liquid form for preparing an aqueous solution. The active ingredients contained in the product are MCPA (200 g/l, 16.7%), Mecoprop-P (150 g/l, 12.5%) and Dicamba (40 g/l, 3.3%), all in the form of potassium salts.

The herbicide is intended for field application using self-propelled, tractor-mounted, or handheld sprayers. Note: When using this product, follow the safety instructions provided on the label. The product is intended exclusively for trained professional users.

🌱 How does Chwastox® Nowy Trio work?

The active ingredients in the herbicide are selectively transported through the tissues of the weed plants to their roots, causing them to deform and die. Chwastox® Nowy Trio 390 SL is particularly effective against problem weeds such as Cornflower, dove’s-foot cranesbill, ribwort plantain, common sorrel, volunteer oilseed rape, and white clover suitable. The product is an important part of a strategy to prevent herbicide resistance and provides a comprehensive solution without requiring additional support from other products.

The favorable application window, from the seedling stage of weeds to the stage of 9 leaves or 9 whorls (BBCH 11–19), provides ample time to decide on the optimal spraying time. In addition, favorable weather conditions for plant growth enhance the herbicide’s effect.

🌱 Chwastox® Nowy Trio for hobby use too

Chwastox® Nowy Trio 390 SL is also ideal for hobby use. Golf course, sports field, and lawn owners or operators appreciate the product’s ease of use and powerful effect, and can enjoy areas that remain weed-free for longer.

The option to use the product from spring to early autumn offers great flexibility in application. The best weed control results are achieved when the product is applied from the stage of a few leaves until the beginning of flowering. If weeds are already well developed or the area is heavily infested, repeat application may be necessary.

🧪 Chwastox® Nowy Trio – composition

MCPA in the form of a potassium salt (a compound from the phenoxycarboxylic acid group) – 200 g/l (16.7%)

Mecoprop-P in the form of a potassium salt (a compound from the phenoxycarboxylic acid group) – 150 g/l (12.5%)

Dicamba in the form of a potassium salt (a compound from the benzoic acid derivative group) – 40 g/l (3.3%)

🔬 Synergistic effect of the active ingredients

MCPA

A selective, systemic herbicide that is transported within plants. It acts similarly to the auxin indole-3-acetic acid (IAA) and disrupts the plants’ hormonal balance.

The first visible sign of its effect is plant deformation. Leaves and stems twist, while the edges of the leaf blades may curl upward. This is followed by growth inhibition, chlorosis, and necrosis. Symptoms first appear on the youngest parts of the plant. Susceptible species die slowly, usually 3–5 weeks after treatment.

The minimum temperature for MCPA to be effective is in the range of 8–12 °C, the optimum temperature is 20 °C, and the maximum temperature is 25 °C.

Mecoprop-P

An active ingredient from the phenoxycarboxylic acid group, used as a selective herbicide to control broadleaf weeds. It is used mainly in cereal cultivation, on lawns, and among ornamental plants.

Mecoprop-P disrupts the hormonal functions of broadleaf weeds. The active ingredient mimics natural auxins, or plant hormones, causing uncontrolled cell growth.

As a result, deformities and tissue ruptures occur, eventually leading to plant death. The product penetrates weeds through their leaves and is transported throughout the plant, enabling it to control extensive root systems as well.

Dicamba

A selective, systemic herbicide for controlling annual and perennial broadleaf weeds. Dicamba is absorbed by weeds through both their roots and leaves.

Dicamba acts similarly to indole-3-acetic acid (IAA), an auxin produced by plants. At a suitable concentration, Dicamba disrupts vital plant processes, inhibits growth, causes deformities, and eventually kills the plants.

The minimum air temperature for Dicamba to be effective is 8 °C, the optimum temperature is 15–20 °C, and the maximum temperature is 22 °C.

⚠️ What should be considered when using Chwastox Trio 390 SL?

🔄 Rotation and diversity of active ingredients

Use herbicides with different modes of action, in rotation and/or in mixtures – this reduces the risk of herbicide resistance in weeds.

Choose products that act on different life processes in weeds – this can increase the effectiveness of the treatment.

Do not use the same active ingredient more than once during the growing season of the crop in question.

🌦️ Suitable weather conditions and plant condition

Do not apply herbicides:

during drought,

on diseased, damaged, or wet plants,

at temperatures below 10 °C or above 25 °C,

immediately before frost or rainfall,

in strong winds, as there is a risk of spray drift.

🌍 Protecting neighboring crops and the environment

Prevent spray drift onto neighboring crops, especially in areas with broadleaf plants.

Avoid overlapping spray swaths where treated passes meet and at headlands, to prevent overdosing.

Protect surface water and water used for other purposes – the product must not enter water bodies, water reservoirs or irrigation systems.

🌾 Application, dosage and timing

🌾 Winter wheat, winter triticale, winter rye, winter barley

Weeds to be controlled

Cornflower, common fumitory, charlock mustard, chickweed, common stork's-bill, common lambsquarters, common poppy, scentless mayweed, field forget-me-not, hairy cornflower, cleavers, black-bindweed, knotgrass, stinking chamomile, German chamomile, volunteer oilseed rape, shepherd's purse and field pennycress.

Maximum / recommended rate for a single application: 2.0 l/ha.

Recommended amount of water: 200–300 l/ha.

Recommended spray volume: Medium droplet size.

Apply the product in spring after the start of vegetative growth, from the beginning to the end of the cereal tillering stage (BBCH 21–29).

Maximum number of applications during the growing season: 1.

🌾 Spring barley, spring wheat, oats, spring triticale

Weeds to be controlled

Common fumitory, charlock mustard, chickweed, red dead-nettle, common lambsquarters, common poppy, scentless mayweed, hairy cornflower, cleavers, black-bindweed, knotgrass, stinking chamomile, redroot pigweed, shepherd's purse, field pennycress and gallant soldier.

Maximum / recommended rate for a single application: 1.5 l/ha.

Recommended amount of water: 200–300 l/ha.

Recommended spray volume: Medium droplet size.

Apply the product from the beginning to the end of the cereal tillering stage (BBCH 21–29).

Maximum number of applications during the growing season: 1.

⚽ Lawns, sports fields and golf courses

Weeds to be controlled

Creeping buttercup, common dandelion, smooth cat's-ear, common mouse-ear, common sorrel, ribwort plantain, broadleaf plantain, dove's-foot cranesbill, white clover, yarrow, wall speedwell, common mouse-ear and common sorrel.

Maximum / recommended rate for a single application: 2.0 l/ha.

Recommended amount of water: 500 l/ha.

Recommended spray volume: Medium droplet size.

Apply the product from spring to early autumn, when weeds are from the stage of a few leaves to flowering (BBCH 14–40). The product may be applied to the entire area of the lawn, sports field or golf course, or only to weedy patches.

If weed infestation is severe, repeated treatment may be necessary.

Maximum number of applications during the growing season: 2.

Interval between applications: at least 56 days.

🌱 Lawns

Weeds to be controlled

Creeping buttercup, common dandelion, smooth cat's-ear, common mouse-ear, common sorrel, ribwort plantain, broadleaf plantain, dove's-foot cranesbill, white clover, yarrow, wall speedwell, common mouse-ear and common sorrel.

Maximum / recommended rate for a single application: 20 ml/100 m².

This corresponds to the following application rates:

4 ml of the product in 1.0 l of water for 20 m²

or

20 ml of the product in 5.0 l of water for 100 m²

or

100 ml of the product in 25.0 l of water for 500 m².

Recommended amount of water: 5.0 l/100 m².

Recommended spray volume: Medium droplet size.

Apply the product from spring to early autumn, when weeds are from the stage of a few leaves to flowering (BBCH 14–40), over the entire lawn or only on weedy patches.

If weed infestation is severe, repeated treatment may be necessary.

Maximum number of applications during the growing season: 2.

Interval between applications: at least 56 days.