The Spanish slug is mobile and active. It is difficult to control. Tip: Use multiple methods together.
First, make a plan. Consider how much time and money you have. A neighbor can help.
Electric barriers are helpful. For example, SnailStop. If the neighbor does nothing, it is good.
Collecting slugs is difficult. They are active at night. You need to collect them multiple times. Use other methods as well.
Poisons and traps are useful. Beer traps attract slugs. Czech beer works well. Fermented milk is also good.
Plant trap plants in the garden, such as lettuce. Slugs gather there. They are easy to collect.
Use iron phosphate. It is harmful to slugs. Repeat it often.
Birds and hedgehogs eat slugs. Toads and blackbirds also help. Use various methods.
In spring, set out traps. During dry periods, the fight is easier.
Be consistent. Different gardens are different. If you do it consistently, the number of slugs will decrease.