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Cebolla

How to recognize and combat center rot in onions

Center Rot

Bacterium

Type:

Risk to the plant:

HIGH

Pantoea Ananatis (Erwinia Ananatis), Pantoea Agglomerans (E. Herbicola)

Pathogen:

How to recognize and combat center rot in onions

Bacteriosis

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WHO CAUSES IT?

Pantoea ananatis and Pantoea agglomerans are phytopathogenic bacteria that affect various crops, including onion, causing a disease known as basal rot. These bacteria can survive in plant residues and soil, spreading through contaminated water, aerosols and mechanical vectors. They can colonize and damage plants at different stages of their development. Bacteria can enter the plant through wounds or natural openings, such as stomata.

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SYMPTOMS

Basal rot in onions caused by Pantoea ananatis and Pantoea agglomerans manifests itself with symptoms such as decay and softening of the base of the plants. The bulbs can become soft and emit an unpleasant odor, which can lead to plant death and significant crop losses.

• Decomposition and softening of the base of the plant.
• Unpleasant odor due to decomposition.
• Soft and poor quality bulbs.
• Death of the plant in serious cases.

Onion Core Rot: How to Recognize and Treat It Effectively
Center rot in onions | idMicrobe
Center Rot: Symptoms and Damage in Onions
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DEVELOPMENT CONDITIONS

Temperature:

18 ºC - 30ºC

Humidity:

75% - 100%

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HOW IS IT SPREAD?

Water, infected plant remains, contaminated tools, aerosols.

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HOW TO ELIMINATE IT?

Home treatments

BONE MEAL OR GROUND FISH SHELLS

RUSTY NAILS OR IRON SHAVINGS

BANANA PEELS

EPSOM SALTS (MAGNESIUM SULFATE)

SOLUTION WITH HOUSEHOLD BORAX

GROUND OR BOILED EGGSHELLS

COMPOST WITH ONION OR GARLIC SCRAPS

VEGETABLE COOKING WATER

WOOD ASH

WATER WITH VINEGAR OR LEMON (VERY DILUTED)

GARLIC INFUSION

USED COFFEE OR TEA

BANANA AND EGGSHELL INFUSION

POTATO OR LEGUME COOKING WATER

COMPOST FROM FRESH GREEN LEAVES

COMPOST OR WELL-AGED MANURE

DILUTED MILK (1:10)

BANANA TEA

LEAF COMPOST

NETTLE SLURRY

POTASSIUM SOAP AND NEEM OIL SOLUTION

POTASSIUM SOAP SOLUTION + NEEM OIL + DIATOMACEOUS EARTH

BAKING SODA AND NEUTRAL SOAP SOLUTION

GARLIC INFUSION WITH NEUTRAL SOAP

CHROMATIC OR ADHESIVE TRAPS

DILUTED MILK

HORSETAIL INFUSION

TRUNK WHITEWASHING

DIATOMACEOUS EARTH

WOOD ASH

NETTLE SLURRY

CUT THE AFFECTED BRANCHES AND APPLY CINNAMON

GARLIC AND CINNAMON INFUSION

INFUSION OF WORMWOOD, CHILI OR CHILLI

CLEAN THE AFFECTED AREA AND APPLY ASH PASTE WITH GARLIC OR CINNAMON

GARLIC AND MINT INFUSION

LIGHT TRAPS

APPLY CINNAMON POWDER

PITFALL TRAPS

CRUSHED EGG SHELLS

CLEAN AND SEAL THE WOUND WITH CLAY, CINNAMON AND GARLIC PASTE

GARLIC INFUSION

MATURE COMPOST

TRAPS WITH VINEGAR AND SOAP

SEAL HOLES WITH ASH PASTE AND CRUSHED GARLIC

VINEGAR AND BAKING SODA SOLUTION

ANT TRAP

TAPE TRAP

PHEROMONE TRAP

ALCOHOL TRAPS

FUNNEL TRAP

There are no home treatments

Natural allies

PREDATORY MITES

LADYBUGS

LACEWINGS

PARASITIC WASPS

HOVERFLIES OR PARASITIC FLIES

PREDATORY BUGS

There are no natural allies

Mycodiplosis oidii (predatory mosquito)

Chemical treatments

AGRICULTURAL SULFUR (POWDER OR SOLUBLE)

POTASSIUM FERTILIZERS

MAGNESIUM FERTILIZERS

BORON FERTILIZERS

CALCIUM FERTILIZERS

NITROGEN FERTILIZERS

PHOSPHORUS FERTILIZERS

IRON FERTILIZERS

SULFUR FERTILIZERS

NPK FERTILIZERS

There are no treatments for this disease. Treatments are directed at the insect vectors that transmit it. See insect treatments.

ABAMECTIN 0.0015% + PYRETHRINS 0.02%

RAPESEAL OIL

RAPESEAL OIL + PYRETHRINS

ORANGE OIL 6%

PARAFFIN OIL

ACETAMIPRID

ACETAMIPRID 0.005%

ACETAMIPRID 20%

SULFUR

COPPER 20%

COPPER 25%

COPPER 35%

COPPER 38%

COPPER 50%

COPPER 52%

DELTAMETHRIN 1.57%

DELTAMETHRIN 10%

DELTAMETHRIN 2.5%

DIFENOCONAZOLE 1.67%

ESFENVALERATE 2.5%

ESFENVALERATE 5%

100% GARLIC EXTRACT

PHENHEXAMIDE 50%

FLUPYRADIFURONE

FLUPIRADIFURONE 20%

FOSETIL-AL 80%

FERRIC PHOSPHATE

ALUMINUM PHOSPHIDE 56%

PHOSTIAZATE 10%

PHOSTIAZATE 15%

HEXITIAZOX 10%

POTASSIUM HYDROGEN CARBONATE

LAMBDA CYHALOTHRIN

LAMINARIN 4.5%

METALDEHYDE

PIRACLOSTROBIN 6.7% + BOSCALIDE 26.7%

PYRETHRINS

PYRIPROXIFEN 10%

POTASSIUM SALTS OF UNSATURATED FATTY ACIDS

SPINOSAD 0.024%

SPINOSAD 12%

SPINOSAD 48%

TAU-FLUVALINATE 24%

TETRACONAZOLE 10%

TETRACONAZOLE 12.5%

TETRACONAZOLE 4%

TRICHODERMA ASPERELLUM (STRAIN T34)

RECOMMENDED PRODUCTS TO ELIMINATE THE PEST

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Fruit Fly Traps

Fruit Fly Traps

Ready-to-use fruit fly trap with attractant.

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Liquid Copper Fungicide

Liquid Copper Fungicide

Copper fungicide for fungal diseases and plant diseases.

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Organic Seaweed Fertiliser

Organic Seaweed Fertiliser

Plant Food Ideal for All Plants, Rich in Additional Nutrients

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Fungus Fighter Plus | Fungicide for Plants

Fungus Fighter Plus | Fungicide for Plants

Broad-spectrum fungicide for effective control of fungal diseases in plants.

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Ultimate Bug Killer | Broad-Spectrum Insecticide

Ultimate Bug Killer | Broad-Spectrum Insecticide

Fast acting bug spray with up to 2 weeks protection, controls common garden pests

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REPELLENT PLANTS

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RECOMMENDATIONS

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