Fruit & Vegetable Magazine

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OMAFRA: Earwigs pesky at harvest time

September 6, 2023  By ONFruit

Earwigs are making an appearance in vineyards this summer. While they can be beneficial in controlling pest insects, they can be a problem when it comes to harvest.

Earwigs are generalist predators and are active mostly at night. They like to hide in dark places, like the centres of grape clusters, and can be off-putting for consumers of table grapes and vineyard workers. When disturbed or crushed during vinification, earwigs may release 2-methyl-1,4-benzoquinone and 2-ethyl-1,4-benzoquinone into the must, which give a smoky aroma and other off-flavours in wine. |READ MORE


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