Difference between revisions of "Blight"

Latest revision as of 12:03, 17 January 2024

Blighted potato plants with a bubble-shaped yellow indicator above them.

Blight is a disease that infects domesticated plants with a growing period shorter than 15 days. Blighted crops will not grow or yield anything when harvested, and can spread the blight to other nearby plants within 4 tiles while losing health points and dying. Blighted plants can neither be saved, nor healed, nor consumed by herbivore animals, and must be destroyed.

Progression[edit]

Blight starts on one species of plant, at 10% severity, affecting 20% of your plants^{[Fact Check]} (1 in 5). It will progress slowly once plants are infected, and once it reaches 28% it can spread to nearby plants within a 4-tile radius.^[Rate?]

Blight jumping from a rice field to a potato crop past a 3 tile gap

Unaffected Plants[edit]

Trees, wild, decorative plants, and devilstrand mushrooms are immune to blight.

Removal[edit]

To stop the spread of blight and allow replanting, the affected plants must be removed. Blighted plants can be automatically marked for removal en masse by selecting a blighted plant and clicking the "Cut all blight" button, designating all plants currently infected with blight across the map for cutting as if the Cut plants order was used. Note that this only designates the plants that are currently blighted at the time of the order - it will not automatically designate the plants blight spreads to in the meantime. The affected plants can also be manually designated for cutting using the right-click plant cut command, or the Cut plants orders tab of the Architect menu. No matter the designation method, colonists with the Plant cut work enabled will then cut the blighted plants. Consider temporarily setting Plant Cut priority to 1 in the Work tab if colonists do not respond immediately.

If grower time is short, then the plants can also be destroyed by any other means such as by burning them with Molotov cocktails or Incendiary launchers. The fire will spread and rapidly destroy the field, though this risks igniting healthy plants, colony structures, or colonists.

Mitigation strategy[edit]

To mitigate the effects of blight, it is recommended to leave 4-square wide strips between crops, left empty or planted with species not affected by blight.

Version history[edit]

Beta 19/1.0 Update - Doubled initial blight size, increase spread rate by 30%.
1.4.3523 - Added a "cut all blight" command to blighted plants.

@@ Line 1: / Line 1: @@
 [[File:Crop blight.png|400px|thumb|right|Blighted [[potato plant]]s with a bubble-shaped yellow indicator above them.]]
-Blight is a disease that infects plants.  Blighted crops will not grow or yield anything when harvested, and can spread the blight to other nearby plants while losing health points and dying.
+Blight is a disease that infects [[domesticated plants]] with a growing period shorter than 15 days. Blighted crops will not grow or yield anything when harvested, and can spread the blight to other nearby plants within 4 tiles while losing health points and dying.
+Blighted plants can neither be saved, nor healed, nor consumed by herbivore animals, and must be destroyed.
-===Deterrence===
+== Progression ==
-To stop blight, the affected plants need to be manually selected for cutting (using the plant cut command), or burned with [[Molotov cocktails]] or [[Incendiary launcher]]s, though burning the plants may be inaccurate and kill plants that are not blighted. The advised method to deal with a blight outbreak is to set up a plant cutting order for all blighted plants and quickly set plant cutting to priority 1 for everybody. Once the blight has been dealt with, reset the priorities.
+Blight starts on one species of plant, at 10% severity, affecting 20% of your plants{{Check Tag|Fact Check|An incident of 40% initial plants affected was reported in December of 2020}} (1 in 5). It will progress slowly once plants are infected, and once it reaches 28% it can spread to nearby plants within a 4-tile radius.{{Check Tag|Rate?|What is the rate of spread?}}
+[[File:Rimworld V1.4 blight crop jump Gif.gif|thumb|right|Blight jumping from a rice field to a potato crop past a 3 tile gap]]
-The blight starts at 10% severity, on 20% of your plants (40% initial plants affected has been witnessed in December of 2020). It will progress slowly once plants are infected, and once it reaches 28% it can spread to nearby plants within a 4-tile radius.
+== Unaffected Plants ==
+[[Tree]]s, [[Wild Plants|wild]], [[Decorative Plants|decorative]] plants, and [[devilstrand mushroom]]s are immune to blight.
-===Affected Plants===
+== Removal ==
-[[Devilstrand mushroom]]s or any other plants with a 15-day or longer growing period are immune to blight.
+To stop the spread of blight and allow replanting, the affected plants must be removed. Blighted plants can be automatically marked for removal en masse by selecting a blighted plant and clicking the "Cut all blight" button, designating all plants currently infected with blight across the map for cutting as if the [[Orders#Cut plants|Cut plants]] order was used. Note that this only designates the plants that are currently blighted at the time of the order - it will not automatically designate the plants blight spreads to in the meantime. The affected plants can also be manually designated for cutting using the right-click plant cut command, or the Cut plants orders tab of the [[Architect]] menu. No matter the designation method, colonists with the [[Work#Plant cut|Plant cut]] work enabled will then cut the blighted plants. Consider temporarily setting Plant Cut priority to 1 in the Work tab if colonists do not respond immediately.
+If grower time is short, then the plants can also be destroyed by any other means such as by burning them with [[Molotov cocktails]] or [[Incendiary launcher]]s. The fire will spread and rapidly destroy the field, though this risks igniting healthy plants, colony structures, or colonists.
+== Mitigation strategy ==
+To mitigate the effects of blight, it is recommended to leave 4-square wide strips between crops, left empty or planted with species not affected by blight.
+== Version history ==
+* Beta 19/1.0 Update - Doubled initial blight size, increase spread rate by 30%.
+* [[Version/1.4.3523|1.4.3523]] - Added a "cut all blight" command to blighted plants.
+[[Category:Game mechanics]]