Episode Details

Episode Title: Ecological Weed Management

Host: Edgars Greste
Guest: Kim Deans, Agro-ecologist (with special contributions from Alexia Martinez & Kym Green)
In this episode of The Big Shift for Small Farms, Edgars Greste takes a deep dive into the often-overlooked subject of weeds — and how thinking differently about them can transform your small farm. Joining him is agro-ecologist Kim Deans, who challenges traditional chemical-based weed control, and instead advocates for a holistic weed-management strategy grounded in soil health, biodiversity and sustainable farm practices.

You’ll also hear from farmers Alexia Martinez and Kym Green as they share firsthand experiences of integrating compost, cover-crops and natural remedies into their weed-control practices — showing how a small-farm operator can manage weeds and build a healthier ecosystem at the same time.

• Why weeds aren’t just pests — they are indicators of underlying soil, pasture or ecosystem health issues.

• How to shift from a reactive “spray-and-pray” mindset to a proactive system-based approach focusing on soil biology, cover crops, grazing and pasture competition.

• Practical strategies for small farms in Australia: implementing cover crops, compost, rotational grazing and non-chemical weed suppression methods.

• Real-world farm stories: how Alexia Martinez and Kym Green are balancing weed control with regenerative practices on their properties.

• 00:00 – 05:00 → Introduction: why weed management needs a rethink in small-scale agriculture

• 05:01 – 15:00 → Guest segment: Kim Deans’ journey from traditional farming to agro-ecology

• 15:01 – 30:00 → Core principles: ecosystem thinking, soil health and weeds as signals

• 30:01 – 45:00 → Practical tactics for small farms: cover crops, compost, grazing, and timing

• 45:01 – 55:00 → Farmer voices: Alexia Martinez & Kym Green share their stories

• Biodynamic Agriculture Australia Ltd: https://biodynamics.net.au/

• Kym Green: https://www.facebook.com/Kymgreenlenswood/

• Free Guide: Weeds as Indicators of Soil Health (via Reinventing Agriculture) Reinventing Agriculture

Where to from here?

1. Walk a paddock, and document which weeds are present, how dense they are — and ask: What might they be signalling about soil health or pasture competition?

2. Choose a paddock to trial a cover-crop (or increased ground cover) this season. Compare weed pressure at the end of the season with a part of the paddock left under current management.

3. Talk to a neighbour/mentor/agribusiness about integrating grazing or compost strategies to suppress a particular persistent weed species you face.

Then, set a reminder: revisit the same paddock in 3 months, note changes and score weed pressure on a scale of 1-10. Reflect: What changed? What still needs adjusting?

On smaller farms, conventional large-scale weed-control methods (heavy chemical sprays, large machinery) may be less economical or sustainable. By adopting an ecological approach, you gain:

• Improved soil health that supports your desired plants & crops, not just suppression of weeds.

• Reduced reliance on chemical inputs and lowered costs — especially relevant in tight-margin scenarios.

• More resilient systems: healthier soils and beneficial plant cover help your farm bounce back from droughts, floods or other