Ant Nests & Eggs on UK Lawn: Pyrethroids & Baits

New UK property. 8+ ant nests, eggs on surface. Millions. Son can't play. Help.

Pyrethroid Sprays (Contact)

• Active: allethrin, deltamethrin, etc. (ends in -thrin).
• Safe for humans, fast breakdown.
• Must hit insect—no preventive value.

Baits (Colony Kill)

• Amdro (hydramethylnon) in US; similar in UK.
• Place around nests, not on them (ants may reject).
• Foragers carry to queen.

Combine: bait for colony, spot-spray for immediate relief.