Experts in adjuvants and plant nutrition

Wetters, Spreaders, Penetrants & Stickers

Intracrop produce a comprehensive range of adjuvants that have been developed to answer the needs of farmers and growers throughout Europe

Our innovative range of products have been developed to maximise the activity of herbicides, fungicides, growth regulators and insecticides and to ensure that every drop is used to best effect.

The Benefits

  • Improved speed of action
  • Improving efficacy of the Agrochemical
  • Improved rainfastness
  • Improved coverage of the leaf
  • Improved penetration into the plant
  • Control of larger weeds
  • Improved crop safety
crop spraying adjuvants

All of our adjuvants have undergone comprehensive research and development and the recommendations produced are backed by GLP trials conducted by independent trials organisations. All products are designed to produce a strong economic benefit.

Selecting the right adjuvant for the situation is a specialist skill. Speak to your agronomist for expert guidance.

Call now & talk to the experts: +44 (0) 1926 634 801
or send us an email

What are adjuvants

Adjuvants are specialist chemicals that are used to improve the effectiveness of agrochemicals when added to the solution in the spray tank. Many agrochemical manufacturers recommend the use of an adjuvant with their products but many other products can also benefit from the use of an adjuvant. Adjuvants can increase the biological efficacy by actions such as improved spreading and increased penetration of the leaf.

Wetters and Spreaders.

Ensuring that pesticides coat the target in the most efficient way to maximise the effectiveness of that pesticide.


Intracrop products contain some of the most technologically advanced penetrants available, enabling them to take active ingredients through the protective layers and barriers in a plant to where they can perform their role effectively. These advance penetrants can achieve this in a way that is safe to the crop.

How Stickers Work

These can play a number of roles. They can hold a pesticide in place on a leaf where it can perform its role immune to the weather. They can be used to prevent pod shatter and seed loss in crops such as oilseed rape. Also they can reduce transpiration from plants - particularly important in drought conditions.

The Need for Adjuvants

There are a lot of variables involved in applying Plant protection Products all of which can significantly affect the efficacy of products. Such variables include weather (eg wind, rain, temperature), target characteristics (eg hairy leaves, waxy leaves, shape of leaves, wet leaves), position of the target (eg under a dense crop cover, underside of the leaf), application machinery and techniques (including nozzles, spray volume and pressure) and water quality. Some of these variables can be changed by the farmer but many are pre-determined or outside of any control. Adjuvants can assist in overcoming some of these variables.

It is widely assumed that pesticide manufacturers produce formulations that contain all the adjuvant that is required. However, there are many factors involved that make this impossible to achieve and a product formulation can be at best a compromise. It is very expensive for manufacturers to produce all the regulatory data required for a given formulation and hence they tend to produce as few different formulations as possible. These formulations then are used in many different climates, many different crops and to control many different targets. The rates of use can easily vary by ten fold and the amount of water and the method of application can vary enormously. Imagine using the same product to control disease on bananas in the tropics as to control disease on wheat in Northern Europe. The temperature, leaf shape, size of crop, spraying machinery and disease to be controlled for example are all completely different and would require completely different characteristics in an adjuvant system. No bulk produced formulation could cope with that. It is therefor impossible for any in-built adjuvant system to be optimal in all conditions and in most cases it will be sub optimal. Adding the correct adjuvant to the product can increase efficacy dramatically with the potential to use less active ingredient also.

Many modern products (such as sulphonyl ureas) are very concentrated and used at exceptionally low rates and do not have the room in the formulation for specialised adjuvants. Other products in water dispensable bags are limited to the addition of certain adjuvants. Some manufacturers, particularly generics, aim to produce low cost formulations with minimum amounts of adjuvant in. In all of these situations adding the correct selection of adjuvant can be highly beneficial.