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