Multipathogen screening of new molecules, active ingredients or adjuvants under controlled conditions

To support research programs development for new molecules or active ingredients, the Staphyt plant pathology and nutrition laboratory is able to carry out various types of multi-pathogen screening at different scales.

Screening of new molecules, active ingredients or adjuvants

As part of your development projects for new plant protection products, the Staphyt laboratory has the capacity to carry out efficacy tests on large quantities of products. Whether it’s a wide range of active ingredients or different combinations of adjuvants with one or more active ingredients, we can set up customised tests to meet your specific requirements. This can range from simple in-vitro efficacy tests to more complex tests on different crops. Our team will respond quickly to your requests, whether for a single test or an annual/multi-year program on one or more pathosystems.

Determination of action spectrum

Our 30 years of experience in plant pathology have enabled us to develop a wide range of tests. We propose tests on a large number of crops of high economic interest: vegetable (potatoes, tomatoes, strawberries), perennial crops (vines, apple trees) and field crops (wheat). On each of these crops, several diseases of interest can be tested (mildew, powdery mildew, fusariosis, rot). We are able to test the efficacy of your products on over thirty fungal pathogens. For the development of new active ingredients, or to identify new targets for existing active ingredients, our wide range of pathosystems guarantees precise determination of your product’s spectrum of action.

Custom made work under controlled conditions at various scales

We can adapt our protocols to the requirements and needs of our customers. Depending on the stage of formulation, the type and number of products, and the budget, we can offer customised tests on different scales.

In vitro: The simplest and quickest tests, it enable us to test the direct action of molecules of interest (whether formulated or not) on target microorganisms. These tests are carried out on culture media in the absence of plant material, and are therefore not suitable for products such as plant defense stimulators (PDS). We can analyse the ability of molecules of interest to inhibit target growth, prevent elongation, mobility or spore germination, among other things.

In vivo: The intermediate range of tests. Tests are carried out on plant organs in an optimised way to guarantee the maximum number of biological replicates in the shortest possible space and time. They are suitable for all types of products and are a more important source of information than in vitro tests. They allow you to vary the mode (automatic spraying, manual spraying, mixed application) and timing of application (preventive, curative, cumulative).

In planta: the most comprehensive range of tests. Tests are carried out on whole plants produced in our production greenhouse, carefully selected by our technicians and then incubated in our controlled-atmosphere culture chambers. These are the tests that most closely resemble those carried out in the field, while maintaining the demanding laboratory conditions (selection of plant material in perfect health, finely titrated artificial inoculation, controlled incubation temperature and photoperiod). Thanks to our experience, we can adapt our protocols to different types of product (conventional, biocontrol, SDP) and, as with in vivo tests, we can vary application modes and timings.