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