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Broccoli care requirements
water
Consistently moist — 2.5–5cm per week.
soil
Fertile, slightly alkaline, well-draining soil.
light
Full sun.
symptoms
Symptoms to look for in Broccoli
- fiber_manual_recordV-shaped yellow lesions starting at leaf edges (in brassicas) or circular dark spots
- fiber_manual_recordBlackened veins visible in cut stems
- fiber_manual_recordFruit or root tissue turning black and shriveled
help
Common causes in Broccoli
Caused by fungi such as Guignardia (grapes) or the bacterium Xanthomonas campestris (brassicas), spreading through water splash and contaminated seed in warm, wet weather.
healing
How to treat black rot in Broccoli
Remove and destroy infected plant parts, avoid overhead watering, and apply an appropriate fungicide or bactericide labeled for the specific host plant.
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Preventing black rot in Broccoli
Use certified disease-free seed or stock, practice crop rotation, and clean up plant debris at the end of the season.