Experienced gardeners always have red plugs in their greenhouses.
We'll tell you what it gives and how to use this life hack correctly.
Then, to pour into them a product to protect seedlings from ants.
The color of the corks should be bright so that they do not get lost. You can use lids instead of corks.
The remedy for ants is prepared as follows. Mix an ampoule of insecticide for ants (Muravyed, Fitoverm) with sugar (one or two tablespoons) and 100 milliliters of water.
Fill the corks with the resulting mixture and place them near the walls. You can add a little jam to each cork.
The method is not humane, but effective. In a couple of days there will be no ants in the greenhouse.