Using EM in the Vineyard

EM can be effectively used around the vineyard by helping to increase the microbial activity, microbe presence in the soil and in the winemaking process. The Microbes in this technology have demonstrated their effectiveness on ecosystem improvement of the soil micro flora, promotions of crop root development and recovery of polluted environments. This makes EM ideal in soil rejuvenation and extracting harmful chemical residues from our soils.
EM is a technology that is gaining popularity with Viticulturists for a number of reasons:

  1. Low cost
  2. Organically certified (Bio-Gro)
  3. Multiple applications, e.g. Soil, Vines, and waste management

Key EM effects in the Vineyard

Improved Organic Matter Breakdown

EM will help the decomposition process of organic materials, and during fermentation will produce normally unavailable organic acids, such as lactic acid, acetic acid, amino acid, malic acid and bioactive substances and vitamins. A key ingredient in this process is organic matter which is supplied by pasture residuals, (dead matter) recycling crop residues, green manures and animal manure. In addition, this process leads to increased humus in the soil.

Understorey Management

Using EM will help increase soil biology and the microbial diversity in your understorey.  The benefits will include enhanced soil biological activity below the vine, increased soil moisture levels, thicker grape skins and changes to the density of the vine canopy itself. This all comes from an increase in microbial activity within your biological system and will save you money and improve your vine health.

Enhancing Fertiliser Inputs

The microbes in EM® will solubilise compounds both organic and inorganic that are largely unavailable to plants and make them available for uptake by the plants root system allowing the plant to put more energy into growth. In performing this important function the Microbes create a more efficient use of added nutrients, generating a better growth response from fertiliser inputs. Also, our research has demonstrated the ability to lower fertiliser use while still gaining the same yield. Research has shown the microbes in EM® stimulate Mycorrhizae and Trichoderma further enhancing nutrient uptake and the plants root system. EM® works effectively with most fertiliser and can be sprayed on with most pesticides and herbicides decreasing your application costs.

Fungi Stimulation

EM is a combination of beneficial microorganisms including Fungi but the real benefit is the stimulation of other types of fungi in the soil. This includes Mycorrhizae and Tricoderma.
EM also stimulates a number of fungal species including Pseudomonas, Mycobacter, Aspergillus, that solubilise soil nutrient compounds (both organic and inorganic) that are largely unavailable to plants. Read more in this trial about the changes EM makes to the soil microflora.

Plant Protection

EM is a microbial inoculant that works as a bio-control measure in suppressing and/or controlling pests through the introduction of beneficial micro-organisms to soil and plants. Pests and pathogens are suppressed or controlled through natural processes by enhancing the competitive and antagoniostic activities of the micro-organisms in the EM inoculants.

Key applications for Vineyards and Wineries

The five main applications of EM on Vineyards and Wineries are:

  • Soil applied, to increase biology and stimulate natural soil processes
  • Foliar applied, to increase vine health, reduce pathogens and populate the vines with healthy populations of beneficial microbes
  • Compost making, using the anaerobic system - See our composting with EM page for more information. 
  • Waste-water system, dosing to control bad odour and improve the function of the system
  • During disease pressure periods EM should be used as a foliar application to crops, this has 2 main functions, firstly it creates better growing conditions and this leads to a stronger healthier plant. Secondly it provides competitive exclusion, which means that it out-competes pathogens for space, by inoculating the leaf surfaces with beneficial microbes.

Using EM will lead to better water use, efficient nutrient uptake, and healthy soils leading to healthy vines. EM can be applied through the irrigation system, or sprayed onto the soil, understory and vines.



Innovative Use of EM for Enhancing Vineyard Production         Managing Microbes in and around the Vineyard 

Relevant News Articles

How EM can boost your Growing System in Autumn

18 March 2020

As we enter autumn there are a whole host of ways EM can be used to enhance your soil and boost performance in crops and pasture. It is a great time to give your soil a bit of TLC, whether you are planting autumn crops, breaking down crop residues, looking to boost your soil or help it recover or looking to enhance an existing crop, EM can help.

Controlling Sludge and Odour in Vineyard Waste Water - with Testimonial

25 November 2015

This testimonial from one of our winery customers who uses EM in their waste water system, shows using EM has resulted in cleaner and clearer water, no sludge build up and also complete reduction of odour.

Fungi Stimulation

11 May 2015

EM is a combination of beneficial microorganisms including Fungi but another bonus is the stimulation of other types of fungi in the soil. This includes Mycorrhizae and Tricoderma.

Composting in the Vineyard

21 March 2014

Right about now is the perfect time to take all of that grape marc that is generated by a vineyard during harvest and convert it into a high energy and nutrient dense compost using our product Effective Microorganisms (EM).

The Beginning of Spring in the Vineyard

21 August 2013

Winter is coming to an end and spring is almost here. It is an exciting time of year for much of the country, as the vineyards start to develop their full canopy and transform the manicured vineyards in the Hawkes Bay, Marlbourough and Central Otago to name a few, into a picturesque landscape. Use microbes to help improve the health and vitality of your vines.

Sustainable Wine Making

8 May 2013

Winemakers and Vineyard managers are in part “microbiologists”. By their different management options on the Vineyard, they can have significant affects on microbial populations, reducing or increasing the balance of good and bad bugs, by their choice of options. EM (effective microorganisms) is a technology that will increase the balance of good microbes to aid soil fertility and composting.

EM1 Concentrate Label

EM1 Concentrate 20L

EM1 Concentrate is a natural, safe technology with many applications around the Garden, Farm, Vineyard and Environment. A certified organic input, EM1 Concentrate can be expanded by the user to increase the product volume 20 fold, making it a low cost microbial input.


Molasses 20L

Molasses 20L

20 litres of quality molasses,to help the activation and expansion of EM


EM Animal

EM Animal 5L - Animal Probiotic

EM Animal is a proprietary combination of natural microorganisms designed to improve the health and vitality of stock. EM Animal is an innovative animal probiotic which is based around our core EM product and then given an additional boast of beneficial bacteria.


EM Environment

EM Environment 20L

EM Environment is a Ready to Use product which is a natural, safe technology with many applications around waste processing, odour, septic systems, compost and water quality. A certified organic product, EM Environment, works by getting the natural processes to function, the way nature intended. This includes breaking down odour, orgaic matter and sludge, balancing the microbial environment and improving composting activity


Soil and Crop Label

EM Soil & Crop 20L

EM® Soil and Crop is a certified organic technology with many applications around farm, orchard, and vineyard environments. This ready to use product works by stimulating soil biology to enhance soil performance and plant production.