Aubergines diseases and pests
The database lists 4 problems recorded on this crop. 3 of them can cost the whole harvest, and 2 survive in soil or debris into next season — those are the ones that decide your rotation. The largest number are active in June.
Pressure through the year
The number of problems listed as active in each month. Pick a month to see what to sow, plant and harvest then.
Start from what you can see
What actually prevents them
Rotate this bed and everything else in the same family on at least a three-year cycle. 2 of the problems below survive in soil or crop debris between seasons, so returning the same crop to the same ground hands them the host they were waiting for.
Applies to: Colorado Potato Beetle, Verticillium Wilt
Clear and remove the spent crop at the end of the season rather than digging it in. Debris left on the surface is where the persistent problems overwinter, and next spring they start from your own bed rather than from somewhere else.
Applies to: Colorado Potato Beetle, Verticillium Wilt
Keep watering and feeding even rather than generous. Several problems on this list are not infections at all: they are the plant reacting to a swing in water, temperature or nutrient supply, and consistency prevents them where no spray can.
Applies to: Blossom End Rot
Keep affected material out of the compost heap — 1 of these survive a garden heap and come back with the finished compost. Bag it for municipal green waste, which is composted at temperatures a garden heap does not reach.
Applies to: Verticillium Wilt
Every listed problem
Ordered by how much they can cost you.
Fungal diseases(1)
- Verticillium WiltSevere
V-shaped yellow wedges at leaf margins, wilting during the heat of the day, and tan-to-brown streaking in the wood when a stem is cut. Often progresses slowly over a season.
- How it spreads
- Soil and crop debris
- Compost
- Keep out of the compost
- Conditions
- 18–27°C · humidity ≥60%
- First move
- Remove affected material now
Pests(2)
- Colorado Potato BeetleSevere
Rounded yellow-and-black striped beetles, plump orange-red humpbacked larvae, clusters of orange eggs under leaves, and rapid defoliation that can strip plants bare.
- How it spreads
- Soil and crop debris
- Compost
- Safe to compost
- Conditions
- 18–33°C
- First move
- Remove affected material now
Also at risk: Potatoes
- Spider MitesSevere
Fine pale stippling or bronzing of leaves, delicate webbing on undersides and growing tips, and leaf drop in heavy infestations; tiny moving dots visible with a lens.
- How it spreads
- Carried by insects
- Compost
- Safe to compost
- Conditions
- 27–40°C · dry air ≤55%
- First move
- Treat, then re-check in 5–7 days
Also at risk: Marigolds
Physiological disorders(1)
- Blossom End RotModerate
A sunken, leathery, dark brown-black patch at the blossom (bottom) end of the fruit, often on the first fruit of the season or during dry spells; the rest of the fruit may ripen normally.
- How it spreads
- Not contagious
- Compost
- Safe to compost
- Conditions
- Spread by handling, insects or soil — not weather-triggered
- First move
- Fix the cause, not the leaf
Why rotation matters here
2 of these overwinter in the soil or in crop debris rather than on the plant. Pulling the sick plant does not remove them: they wait for the same host to come back to the same ground.