Impex Duo: a product that works for three

Let’s take a look at a well-known product from a different angle:

fighting broomrape in sunflower;
destroying a broad spectrum of weeds;
soil protection for the crop: how to get a fast stop-effect plus prolonged action from the product.

1. Broomrape in sunflower

Let’s recall the main recommendations for effective application:

watch the sunflower’s growth stage
treat before the broomrape’s haustorium attaches, or right after it attaches
Impex Duo rate – 1.2 l/ha

How Impex Duo works

Note that when fighting broomrape in sunflower, as a parasitic organism, we don’t pay attention to the growth stage of other weeds. The main thing for us is effective action against broomrape.

2. Destroying a broad spectrum of weeds

The “product + imi-tolerant hybrid” pairing was developed by scientists specifically to simultaneously destroy the entire range of unwanted vegetation in the field:

weeds: both broadleaf and grass, annual and perennial alike;
volunteer plants from other crops and from classic sunflower.

As a result, a single application of the product completely clears the field of weeds.

To boost effectiveness, we recommend following a few simple rules.

Impex Duo has a complex formulation, since it contains a number of powerful adjuvants. Don’t apply the product with other pesticides, adjuvants, stickers, water conditioners and micro-fertilizers, since this could increase phytotoxic effects on the sunflower or reduce the product’s effectiveness.
Note: since products based on the active ingredient imazamox are recommended for use on soybean and peas, their effectiveness against legume-family weeds (mouse vetch, tuberous vetchling) is low.
Although the product has a wide application window (2-8 sunflower leaves), don’t wait until “all the weeds have emerged”. Waiting can harm sunflower seedlings, taking away moisture and nutrients.

The best stage for destroying weeds

3. Soil protection for the crop

Now let’s figure out what to do about the following waves of persistent weeds (ragweed and lamb’s quarters).

A bit of scientific data: Impex Duo uses two active ingredients – imazamox and imazapyr.

After application, imazamox begins breaking down in the soil very quickly, reaching 50% of its amount within 12–42 days. By the start of the autumn sowing season its content in the soil doesn’t exceed 1–2%. Imazapyr, on the contrary, breaks down very slowly – 3–12 months depending on soil type. It provides excellent protection against germinating weeds. It acts slowly on vegetating weeds. It’s exactly this combination of active ingredients that gives us a fast stop-effect plus prolonged action from the product, – comments an AHT chemical engineer.

The basic rule for getting soil action: don’t wait until the whole field is covered with weeds. It’s important to act at the optimal weed-development stage, to ensure the best effectiveness against vegetating weeds, as well as to create an even screen to control the next waves.

Impex Duo: a product that works for three — photo 5