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Weed · Asparagus, maize (corn) and artichoke

Field bindweed: treat the patches, not the field

Convolvulus arvensis

Field bindweed does not go away in a year. What you can do is treat only where it is, season after season, and use the map to see whether each patch is shrinking.

We have not flown this problem ourselves yet. We work it out with you, on your field.

Field bindweed: funnel-shaped white or pink flowers and arrow-shaped leaves.
Field bindweed: funnel-shaped white or pink flowers and arrow-shaped leaves. Photo: Svklimkin, CC BY-SA 4.0, via Wikimedia Commons.

The problem

A weed that lives underground

Field bindweed is a climbing perennial. It regrows every season from the roots and underground stems, so it comes up in the same patches and climbs into the crop.

Because one pass does not finish it, many farmers write it off or spray the whole field every year. Both are expensive.

How it works

A map that works for several years

  1. 1

    We fly at the right time

    In asparagus, after harvest and before the fern closes over. In maize, while the crop is low.

  2. 2

    We send you the map

    Each patch with its position and area.

  3. 3

    You treat only the patches

    With your own equipment, on the patches and not on the rest. Next year we fly again and compare.

Comparing one year’s map with the next is the clearest way to know whether what you are doing works.

Where it shows up

Where it shows up

  • Asparagus
  • Maize (corn)
  • Artichoke

In artichoke, the best moment is before planting or before the crop starts to grow: the patches stand out and can be treated with no crop on top. We tell you once we have seen your field.

What farmers ask us

Field bindweed: your field questions

Is there a solution?

You can keep it under control, but you do not eliminate it in one season. What works is going back to the same patches for several years. The map tells you where to keep at it and whether the patch is getting smaller.

Why does tillage spread it?

Because the implement chops up the roots and the underground stems, and the pieces can regrow.

Which product should I use?

It depends on the crop, and what is authorised changes from year to year. Before you spray, check in your country’s official pesticide register that the product is approved for your crop (in the UK, the HSE register of authorised products; in the US, the label registered with the EPA and your state), or ask us. We do not recommend products.

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Try it on five hectares (12 acres)

Launch offer: free within 100 km (62 miles) by road from Pamplona, Spain. We do not fly in the UK or the US yet: write to us and we will tell you how we can work on your farm. Prices on the Pricing page.