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