Side quests in Diablo 4 often provide far more than simple experience rewards. They help players earn Renown, unlock regional progression bonuses, gather valuable crafting resources, and farm useful Diablo 4 Items while exploring Sanctuary's dangerous regions. One early-game quest that many players encounter in Scosglen is "Of Pests and Pestilence," a straightforward but rewarding mission centered around clearing deadly swarms infecting the moors.

Although the quest itself appears simple at first glance, many players overlook efficient farming routes, enemy spawn patterns, and optimization opportunities that can make completion significantly faster. This walkthrough explains exactly how to complete Of Pests and Pestilence in Diablo 4 while also maximizing rewards and progression efficiency.

Where to Start: Pests and Pestilence

The "Of Pests and Pestilence" side quest begins in the Scosglen region, specifically within The Shrouded Moors near Tirmair. Players must speak with Meav, the quest-giving NPC, who warns about dangerous swarms overrunning the area.

To unlock the quest:

1. Travel to Scosglen

2. Head toward Tirmair in The Shrouded Moors

3. Speak with Meav

4. Accept the quest

The objective is simple: eliminate 75 Stinging Swarms roaming the surrounding marshlands. Once completed, players return to Meav to receive their rewards.

Best Strategy for Killing Stinging Swarms Quickly

While the mission sounds easy, many players underestimate how spread out the enemies can be. The best strategy is to move in a circular farming route around the highlighted quest area while focusing on dense swarm clusters.

Classes with strong area-of-effect abilities perform especially well here:

·Sorcerer Blizzard builds

·Necromancer Corpse Explosion setups

·Rogue Barrage builds

·Barbarian Whirlwind builds

AoE-heavy skills allow players to clear entire groups instantly, dramatically speeding up the quest. Strong mobility skills also help minimize downtime between enemy packs.

The Stinging Swarms appear as red markers on the minimap, making them easier to track while moving through the marshland.

This quest is also a decent early opportunity to collect gold, salvage gear, and lower-tier Diablo 4 Items that can be dismantled into crafting resources. Efficient players often combine side-quest farming with gear progression to maximize overall efficiency.

Rewards for Completing the Quest

Completing Pests and Pestilence rewards players with:

·Gold

·Experience

·Scosglen Renown

·Elixir Cache rewards

The Renown gain is particularly valuable because regional progression unlocks additional:

·Skill points

·Potion charges

·Paragon points

·Obol capacity

For players trying to optimize seasonal progression, side quests like this remain an efficient source of early Renown.

The Elixir Cache can also contain crafting resources and consumables useful for leveling builds. Many players use these materials alongside salvaged Diablo 4 Items to improve gear quality during early progression.

Why Farming Materials Matter in Diablo 4

As players move deeper into endgame content, resource management becomes increasingly important. Crafting systems, rerolling affixes, imprinting aspects, and masterworking gear all require large quantities of crafting components.

This is why many players prioritize efficient farming routes or choose to buy D4 materials in order to accelerate progression. High-end builds often require:

·Rare crafting reagents

·Legendary upgrade components

·Tempering materials

·Gold for rerolls

Without enough resources, optimizing endgame Diablo 4 Items becomes extremely time-consuming.

Side quests like Of Pests and Pestilence may seem minor, but they contribute steadily toward overall account progression by providing additional loot opportunities and crafting resources while building Renown simultaneously.

Common Problems Players Encounter

Although the quest is relatively simple, several players have reported spawn-related issues in more recent seasons. Community discussions on Reddit mention situations where Stinging Swarms fail to appear consistently within the designated area.

Some players discovered temporary workarounds by:

·Completing nearby world events

·Leaving and re-entering the zone

·Turning cross-play off

·Waiting for dynamic enemy respawns

One Reddit user noted that certain world events near the northeastern section of the quest area occasionally trigger additional swarm spawns.

Fortunately, Blizzard has periodically addressed several quest bugs through seasonal patches, though some players still report occasional issues depending on server state and seasonal updates.

Best Builds for Fast Side Quest Farming

If your goal is efficient Renown grinding and fast side-quest completion, several meta builds currently stand out:

·Chain Lightning Sorcerer

·Whirlwind Barbarian

·Minion Necromancer

·Rapid Fire Rogue

·Poison Spiritborn

These builds combine:

·Strong AoE clearing

·High movement speed

·Efficient cooldown cycling

·Excellent survivability

Faster clear speeds allow players to gather more Diablo 4 Items, gold, and crafting materials per hour.

Players focusing heavily on seasonal progression frequently buy D4 materials to complement their farming efficiency, especially when upgrading multiple characters or testing new meta builds.

Is Of Pests and Pestilence Worth Doing?

Absolutely. While it may not be the most exciting side quest in Diablo 4, Of Pests and Pestilence remains worthwhile because it contributes toward:

·Scosglen Renown progression

·Experience gain

·Early crafting resources

·Seasonal completion goals

·Efficient exploration

For completionists, every side quest matters when pushing toward full regional completion. Even small quests help build momentum toward larger account-wide rewards.

Additionally, quests like this naturally complement gear farming. Players can collect salvageable Diablo 4 Items, accumulate crafting materials, and improve build efficiency while exploring the open world.

Final Thoughts

Of Pests and Pestilence is a simple but rewarding Diablo 4 side quest that offers useful progression benefits for both new and veteran players. While the mission primarily involves exterminating swarms in Scosglen, efficient routing and AoE-heavy builds can make completion much faster and more rewarding.