Several readers have noticed the presence of a caterpillar which has infested their box hedges and bushes. In French known as "pyrale de buis" (lit. box pest) it can devastate growth of the useful and often iconic tree.
In Toulouse a biological treatment is being tested in municipal parks to try and halt the spread of the pest. The treatment started on the 6th April and it will be instructive to see if this moth and its offspring can be controlled without the use of chemical sprays.
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