Black-headed worm: locut. The black-headed worm designates the cochylis (Eupoecilia ambiguella), a Lepidoptera belonging to the tortrix family, without doubt the best known of vine pests along with eudemis and eulia. The cochylis is a nocturnal butterfly whose caterpillar attacks the foliage and the grapes that it perforates, which favors the installation of gray rot and other secondary rots. The grains will then soften, dry out or rot. We have a...
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