Greater Montauban: a land of remarkable biodiversity

Since 2017, phytosanitary products have been banned in gardens and vegetated areas accessible to the public. As a result, the city’s parks and gardens department has replaced these products with the implementation of so-called soft and selective alternative techniques (mechanical, thermal weeding). This is a way of managing green spaces that is closer to nature and more respectful of the environment.

In addition, in certain areas of the town, such as around the Ingréo swimming pool and opposite the Marché Gare, a differentiated mowing system has been introduced, so that certain areas are mowed only once or twice a year. This not only encourages the growth of certain orchids, but also enriches the flora and provides sufficient resources for pollinating insects.

This so-called “soft” technique makes it possible to combat certain pests by using their natural enemy. Outdoors, ladybugs are released at the Roseraie to combat aphids. Along the coulée verte and the banks of the Tarn river, the installation of nests of a particular species of wasp limits the proliferation of the white leafhopper.

A giant floating nest in the heart of the town: Ile de la Pissote and its heron colony

This island, stretching some 500 meters downstream from the Pont Vieux, owes its name to a small stream that flows into the Tarn between the mouth of the Tescou and the Laguarrigue stream. While only two centuries ago the island was home to bathing establishments, it is now forbidden to moor there. The island is even part of a Natura 2000 zone, i.e. an area of outstanding flora and fauna, the conservation of which must be compatible with human activities. Every year, from March onwards, dozens of herons of various species come here to nest, escaping the hustle and bustle of the city.