# Pesticides - Stage 2 (technology) internal name `pesticides-mk02` · tier 7 (Production science pack, [tier 7](https://factorio.kalzumeus.com/tier/7.md)) HTML page: https://factorio.kalzumeus.com/tech/pesticides-mk02/ ## Cost 1400 units of (1 × [Production science pack](https://factorio.kalzumeus.com/item/production-science-pack.md), 2 × [pY science pack 3](https://factorio.kalzumeus.com/item/py-science-pack-3.md), 3 × [Chemical science pack](https://factorio.kalzumeus.com/item/chemical-science-pack.md), 6 × [pY science pack 2](https://factorio.kalzumeus.com/item/py-science-pack-2.md), 10 × [Logistic science pack](https://factorio.kalzumeus.com/item/logistic-science-pack.md), 20 × [pY science pack 1](https://factorio.kalzumeus.com/item/py-science-pack-1.md), 30 × [Automation science pack](https://factorio.kalzumeus.com/item/automation-science-pack.md), 6 × [Military science pack](https://factorio.kalzumeus.com/item/military-science-pack.md)), 300 s each. ## Requires (2) - [Biotechnology - Stage 4](https://factorio.kalzumeus.com/tech/biotech-mk04.md) - [Pesticides - Stage 1](https://factorio.kalzumeus.com/tech/pesticides-mk01.md) ## Leads to (6) - [Cadaveric arums - Stage 4](https://factorio.kalzumeus.com/tech/cadaveric-arum-mk04.md) - [Grod - Stage 4](https://factorio.kalzumeus.com/tech/grod-mk04.md) - [Guar - Stage 4](https://factorio.kalzumeus.com/tech/guar-mk04.md) - [Rennea - Stage 4](https://factorio.kalzumeus.com/tech/rennea-mk04.md) - [Tuuphras - Stage 4](https://factorio.kalzumeus.com/tech/tuuphra-mk04.md) - [Yotoi aloe - Stage 4](https://factorio.kalzumeus.com/tech/yotoi-mk04.md) ## Unlocks (5 recipes) ### Diethyl dithiophosphoric acid (DDA) (`dda`) - 15 s · tier 7 - Ingredients: 2 × [Phosphorous pentasulfide](https://factorio.kalzumeus.com/item/p2s5.md), 80 × [Ethanol](https://factorio.kalzumeus.com/fluid/ethanol.md) - Results: 200 × [Diethyl dithiophosphoric acid (DDA)](https://factorio.kalzumeus.com/fluid/dda.md) - Made in: Agitator MK 01, Agitator MK 02, Agitator MK 03, Agitator MK 04 - Unlocked by: [Pesticides - Stage 2](https://factorio.kalzumeus.com/tech/pesticides-mk02.md) ### Ethyl mercaptan (`ethyl-mercaptan`) - 10 s · tier 7 - Ingredients: 2 × [Aluminium plate](https://factorio.kalzumeus.com/item/aluminium-plate.md), 50 × [Ethanol](https://factorio.kalzumeus.com/fluid/ethanol.md), 100 × [Acid gas](https://factorio.kalzumeus.com/fluid/acidgas.md), 100 × [Phosphorous acid](https://factorio.kalzumeus.com/fluid/phosphorous-acid.md) - Results: 200 × [Ethyl mercaptan](https://factorio.kalzumeus.com/fluid/ethyl-mercaptan.md) - Made in: Mixer MK 01, Mixer MK 02, Mixer MK 03, Mixer MK 04 - Unlocked by: [Pesticides - Stage 2](https://factorio.kalzumeus.com/tech/pesticides-mk02.md) ### Ethyl mercaptan (`ethyl-mercaptan-2`) - 10 s · tier 7 - Ingredients: 2 × [Chromium](https://factorio.kalzumeus.com/item/chromium.md), 100 × [Ethylene](https://factorio.kalzumeus.com/fluid/ethylene.md), 100 × [Acid gas](https://factorio.kalzumeus.com/fluid/acidgas.md) - Results: 200 × [Ethyl mercaptan](https://factorio.kalzumeus.com/fluid/ethyl-mercaptan.md) - Made in: Mixer MK 01, Mixer MK 02, Mixer MK 03, Mixer MK 04 - Unlocked by: [Pesticides - Stage 2](https://factorio.kalzumeus.com/tech/pesticides-mk02.md) ### Pesticide MK 02 (`pesticide-mk02`) - 30 s · tier 7 - Ingredients: 100 × [Pre pesticide 02](https://factorio.kalzumeus.com/fluid/pre-pesticide-02.md), 50 × [Arqad venom](https://factorio.kalzumeus.com/fluid/bee-venom.md), 10 × [Plastic bar](https://factorio.kalzumeus.com/item/plastic-bar.md), 50 × [Carbonyl sulfide](https://factorio.kalzumeus.com/fluid/carbon-sulfide.md) - Results: 50 × [Pesticide MK 02](https://factorio.kalzumeus.com/item/pesticide-mk02.md) - Made in: Biofactory MK 01, Biofactory MK 02, Biofactory MK 03, Biofactory MK 04 - Unlocked by: [Pesticides - Stage 2](https://factorio.kalzumeus.com/tech/pesticides-mk02.md) ### Pre pesticide 02 (`pre-pesticide-02`) - 10 s · tier 7 - Ingredients: 100 × [Formaldehyde](https://factorio.kalzumeus.com/fluid/methanal.md), 50 × [Diethyl dithiophosphoric acid (DDA)](https://factorio.kalzumeus.com/fluid/dda.md), 100 × [Ethyl mercaptan](https://factorio.kalzumeus.com/fluid/ethyl-mercaptan.md), 1 × [Dodecylamine (DDA)](https://factorio.kalzumeus.com/item/dodecylamine.md) - Results: 50 × [Pre pesticide 02](https://factorio.kalzumeus.com/fluid/pre-pesticide-02.md) - Made in: Biofactory MK 01, Biofactory MK 02, Biofactory MK 03, Biofactory MK 04 - Unlocked by: [Pesticides - Stage 2](https://factorio.kalzumeus.com/tech/pesticides-mk02.md)