Mobilizing as many players as possible , from amateur gardeners to official bodies, in order to federate a observatory of primary infections of tomato and potato late blight is a way of better understanding the dynamics of this disease on these two cultures concerned.

Today digital technologies facilitate the extension of surveillance networks and expand the areas and environments covered.

Anticipating the spread of downy mildew will make it possible to more effectively mobilize sustainable management strategies for these crops in order to drastically reduce the use of chemical control.
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