Here is the full list of all 100 Pesticide Not Required achievements.
Win a run without scaring any ducks
Pet Rosco 100 times during a single run
Win a run with 3 or less weapons
Win a run with 2 or less weapons
Win a run with only 1 weapon
Buy 5 pet cosmetics
Win a run as Sir Hopselot
Win a run without eliminating any pests on Day 1
Buy 10 pieces of decor
Win a run as Truffle
Eliminate a boss within 5 seconds of it spawning
Reach level 90 in a single run
Win a run as Pumpkin
Survive Winter IV
Stand still for 100 seconds
Win a run as James Pond
Win a run as Stripe
Survive Autumn IV
Win a run as Penelhoppe
Survive Spring IV
Win a run as Sprout
Survive Summer IV
Win a run as Collier
Win a run as Mignon
Win a run with 500,000 or more coins remaining
Find every unique Summer fish
Fill out the entire compendium
Reach max level on Mole Turret
Finish a run without getting hit
Win a run as Furog
Win a run as Bean
Survive Winter III
Reach 75% or higher Move Speed
Reach 50% or higher Enemy Spawns
Win a run as Greg From Accounting
Survive Autumn III
Win a run while under 10% health
Land a triple critical hit
Survive Summer III
Win a run as Bubba
Survive Spring III
Eliminate a boss while WUMBO
Win a run with under 100 crop harvests
Reach max level on Tongue Lash
Win a run as Swifty
Survive Autumn II
Win a run as Squeegee
Survive Spring II
Reach 75% or higher Coin Gain
Win a run as Billybob
Survive Summer II
Eliminate 10,000 or more pests in a single run
Reach level 70 in a single run
Fill all 48 plots with the same crop
Reach 20 water capacity
Reach max level on Fairy Dance
Harvest at least 1 of each unique crop in a single run
Reach max level on Pitchfork
Reach 75% or higher Crop Yield
Harvest 500 crops in a single run
Reach 75% or higher Crop Growth Speed
Win a run as Finn
Survive Winter II
Reach max level on Wood Axe
Reach max level on Katana
Find every unique Winter fish
Reach 75% or higher Resistance
Reach max level on Bombs
Win a run as Dr. Hopps
Survive Winter I
Reach 200 or higher Max Health
Reach max level on Scarecrow
Reach max level on Bonk Hammer
Reach max level on Bouncy Ball
Reach max level on Tadpole Spew
Win a run as Hue Mann
Survive Autumn I
Reach max level on Weed Wacker
Find every unique Autumn fish
Win a run as Plotty
Survive Spring I
Reach max level on Toad Oil
Reach 100% or higher Projectile Speed
Reach max level on Lawnmower
Get 10 pets in a single run
Reach max level on Haybale
Reach max level on Mower Blades
Find every unique Spring fish
Mine 50 Ore in a single run
Win a run as Joe
Survive Summer I
Plant 50 crops in one day
Reach max level on Boomerang
Catch 50 fish in a single run
Occupy all 48 farming plots at once
Collect 20 apples in a single run
Reach max level on Twin Scythes
Reach max level on Yoyo
Find each unique ore type
Reach max level on Water Beam