Weak toFlyingPoisonBug ×1.6

Attacker	Type	Moveset	DPS
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	32.6
Pheromosa	BugFighting	Bug BiteBug Buzz	29.7
Enamorus	FairyFlying	Fairy WindFly	28.4
Yveltal	DarkFlying	GustOblivion WingLegacy	28.1
Toucannon	NormalFlying	PeckBeak BlastLegacy	27.8
Moltres	FireFlying	Wing AttackFly	27.7
Naganadel	PoisonDragon	Poison JabSludge Bomb	27.3
Staraptor	NormalFlying	GustFlyLegacy	27.3
Nihilego	RockPoison	Poison JabSludge Bomb	25.9
Salamence	DragonFlying	Dragon TailFly	25.7
Vikavolt	BugElectric	Bug BiteFly	25.6
Rayquaza	DragonFlying	Air SlashHurricaneLegacy	25.6

Windy boosts the Flying attacks above. Clear and Rainy boost Ludicolo.

Level 40, 15 attack IV, costed against Ludicolo's own defense and typing, one per evolution family.

Ludicolo's moveset, CP and shiny All counters Raid board

Questions people ask

What is Ludicolo weak to in Pokémon GO?

Ludicolo takes 1.6 times from Flying, Poison and Bug.

What's the best counter to Ludicolo?

Eternatus with Poison Jab and Dynamax Cannon, worth 32.6 damage per second against Ludicolo's own defense. The full ranking is above.