Aphids
pest
- • Soft-bodied clusters at nodes and undersides
- • Honeydew and curling in active zones
Quiz Topic Library
Review key clues before your next run.
AutoPot Salt Gradient
medium_issue
- • Uneven uptake pattern despite stable reservoir values
Boron Deficiency
nutrient_deficiency
- • Brittle deformed new growth
Bud Rot (Botrytis)
disease
- • Interior flower tissue browns or greys before outer tissue fails
- • Dense flower sections soften and break down
Calcium Deficiency
nutrient_deficiency
- • New growth deformity and spot necrosis
- • Tip regions appear crinkled
Caterpillar/Budworm Damage
pest
- • Chewed tunnels and frass in flower tissue
Caterpillars / Bud Worms
pest
- • Chew channels and damaged bud structures in localized zones
- • Frass (dark pellets) near feeding points
Cold Stress
environment
- • Slow metabolism and uptake-like symptoms
- • Purpling can increase under cold conditions
Copper Deficiency
nutrient_deficiency
- • Weak top growth and reduced vigor
Damping-Off
disease
- • Seedling collapse at media line
- • Stem pinching with very wet starts
Foxtailing from Heat/Light Stress
environment
- • Stacked spires near hotspots
Fungus Gnats
pest
- • Adults rise when medium is disturbed
- • Seedling stalls in chronically wet media
Healthy Cannabis
healthy
- • Consistent color and structure for stage
- • No active lesion/pest progression pattern
Heat Stress
environment
- • Leaf tacoing and top-zone stress
- • Symptoms follow heat hotspots
High pH Lockout Pattern
ph_imbalance
- • Micronutrient-like chlorosis with mixed symptoms
Iron Deficiency
nutrient_deficiency
- • New growth chlorosis with greener veins
- • Top-down pattern on youngest tissue
Leaf Spot (General)
disease
- • Discrete brown to tan lesions with defined borders
- • Spots expand and can merge under sustained pressure
Light Bleaching
environment
- • Very pale tops under strongest light footprint
Light Burn
environment
- • Top-down gradient near fixture
- • Edge curl and fading in highest intensity zones
Low pH Lockout Pattern
ph_imbalance
- • Multiple deficiency-like symptoms appear together
- • Single nutrient corrections fail
Magnesium Deficiency
nutrient_deficiency
- • Interveinal chlorosis on older leaves
- • Rust spotting can appear as it progresses
Manganese Deficiency
nutrient_deficiency
- • Interveinal chlorosis with small specking
Mealybugs
pest
- • White cottony clusters at nodes, petioles, or under leaves
- • Sticky honeydew and reduced vigor around infestation pockets
Mechanical Bruising
environment
- • Localized handling damage that does not spread
Medium Compaction
medium_issue
- • Poor dryback and recurring uptake issues
Molybdenum Deficiency
nutrient_deficiency
- • Rare mixed chlorosis and poor vigor pattern
Nitrogen Deficiency
nutrient_deficiency
- • Older lower leaves yellow first
- • Overall pale growth with slower vigor
Nitrogen Deficiency
nutrient_deficiency
- • Older lower leaves yellow first
- • Overall pale growth with slower vigor
Nitrogen Toxicity
nutrient_toxicity
- • Dark green clawing leaves
- • Overly lush weak growth structure
Nutrient Burn
nutrient_toxicity
- • Tip burn starts first and spreads to margins
- • Pattern tracks overfeeding events
Overdrying (Not Rot)
postharvest
- • Crisp dry tissue without spreading decomposition
Overwatering
medium_issue
- • Droop with wet heavy media
- • Slow recovery and sluggish growth
pH Instability Pattern
ph_imbalance
- • Symptoms shift and overlap instead of staying single-class
Phosphorus Deficiency
nutrient_deficiency
- • Stunted growth with darker dull foliage
- • Flower development slows when unresolved
Potassium Deficiency
nutrient_deficiency
- • Leaf margin burn and necrosis on older tissue
- • Weak stem support under load
Powdery Mildew
disease
- • White powdery patches on leaf surfaces
- • Pattern spreads in irregular colonies
Re-Veg During Flower
environment
- • Odd single-finger leaves in flower
Root Rot / Root Disease
disease
- • Droop and poor uptake despite feeding adjustments
- • General stress pattern repeats after interventions
Russet/Broad Mites
pest
- • Twisted rough new growth without obvious visible pests
- • Can mimic nutrition or heat stress
Salt Buildup
medium_issue
- • Burn patterns worsen despite more feeding
- • Media concentration trends upward
Spider Mites
pest
- • Stippling across leaves
- • Underside mites or eggs, webbing when severe
Stress-Triggered Hermaphroditism
environment
- • Male structures appear during flower
Sulfur Deficiency
nutrient_deficiency
- • Uniform pale growth pattern
- • Can resemble nitrogen deficiency
Thrips
pest
- • Silvery scrape-like streaking
- • Small black specks can accompany damage
Underwatering
medium_issue
- • Limp dry droop and crisping edges
- • Rapid recovery after proper watering
Wind Burn
environment
- • Localized drying/curling in direct fan path
Zinc Deficiency
nutrient_deficiency
- • Small distorted new growth with stunting
- • Interveinal chlorosis may appear