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Cochinillas

Woodlouse scale: what it is, how it originates, and how to eliminate it effectively

Ribbed Mealybug

Icerya Purchasi

Pathogen:

Insect

Type:

Risk to the plant:

MILD

Woodlouse scale: what it is, how it originates, and how to eliminate it effectively
Ribbed mealybug on an orange tree | idMicrobe

Don’t know which pest or disease your plant has?

Correctly identifying the problem is key to saving the plant.

 

A plant expert analyzes the photos and sends you a clear diagnosis within 24 hours, explaining the causes and the most effective solutions step by step.

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DESCRIPTION

WHO CAUSES IT?

The ribbed mealybug, also known as Saissetia coffeae, is a scale insect that feeds on the sap of various plants, including citrus trees. This pest can cause significant damage to citrus crops by weakening the plants and reducing the quality of the fruit produced.

SYMPTOMS

In citrus, the presence of grooved mealybug can lead to a number of worrying symptoms. These include the formation of yellowish, sticky Taches on the leaves and branches of trees, caused by the excretion of honeydew by insects. Additionally, infested plants may show poor growth, yellowing leaves, and premature fruit drop.

Ribbed mealybug: Symptoms and damage in orange trees
Damage caused by the fluted scale insect in Naranjo
Ribbed scale in orange trees: How to recognize and treat it effectively

Don’t know which pest or disease your plant has?

A plant expert reviews your photos and sends you a clear diagnosis within 24 hours, with step-by-step solutions.

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TEMPERATURE AND HUMIDITY

20°C - 30°C

60% - 80%

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HOW IS IT SPREAD?

Passive transport by wind, the movement of insect vectors, such as ants, and dispersal through transport of infested plants.

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HOW TO REMOVE IT?

Home remedies

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

Chemical treatments

• ORANGE OIL 60g/L [ME] P/S
• PARAFFIN OIL (CAS [64742-46-7]) 79% [EC] P/V
• PARAFFIN OIL (CAS [64742-46-7]) 80% [EC] P/V
• PARAFFIN OIL (CAS [8042-47-5]) 54.6% [EW] P/V
• PARAFFIN OIL (CAS [8042-47-5]) 79% [EC] P/V
• PARAFFIN OIL (CAS [97862-82-3]) 80% [EC] P/V
• Paraffin oil 65.4% [EW] P/V
• PARAFFIN OIL 81.7% [EC] P/V
• PARAFFIN OIL 83% [EC] P/V
• ACETAMIPRID 20% [SG] P/P
• ACETAMIPRID 20% [SL] P/V
• ACETAMIPRID 20% [SP] P/P
• AZADIRACTIN 1% (AS AZADIRACTIN A) [EC] P/V
• Azadirachtin 2.6% (AS AZADIRACTIN A) [EC] P/V
• DELTAMETHRIN 2.5% [EC] P/V
• LAMBDA CYHALOTHRIN 5% [EG] P/P
• MALTODEXTRIN 47.6% [SL] P/V
• PYRIPROXIFEN 10% [EC] P/V
• POTASSIUM SALTS OF FATTY ACIDS C14-C20 48% [EW] P/V
• SPIROTETRAMAT 10% [SC] P/V
• SPIROTETRAMAT 15% [OD] P/V

Authorized treatments in organic farming

• ORANGE OIL 60g/L [ME] P/S
• PARAFFIN OIL (CAS [64742-46-7]) 79% [EC] P/V
• PARAFFIN OIL (CAS [64742-46-7]) 80% [EC] P/V
• PARAFFIN OIL (CAS [8042-47-5]) 54.6% [EW] P/V
• PARAFFIN OIL (CAS [8042-47-5]) 79% [EC] P/V
• PARAFFIN OIL (CAS [97862-82-3]) 80% [EC] P/V
• Paraffin oil 65.4% [EW] P/V
• PARAFFIN OIL 81.7% [EC] P/V
• PARAFFIN OIL 83% [EC] P/V
• AZADIRACTIN 1% (AS AZADIRACTIN A) [EC] P/V
• Azadirachtin 2.6% (AS AZADIRACTIN A) [EC] P/V
• LAMBDA CYHALOTHRIN 5% [EG] P/P
• MALTODEXTRIN 47.6% [SL] P/V
• POTASSIUM SALTS OF FATTY ACIDS C14-C20 48% [EW] P/V

Insect allies

PREDATORY MITES

LADYBUGS

LACEWINGS

PARASITIC WASPS

HOVERFLIES OR PARASITIC FLIES

PREDATORY BUGS

There are no natural allies

Mycodiplosis oidii (predatory mosquito)

EFFECTIVE PRODUCTS TO ELIMINATE THIS DISEASE

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Liquid Copper Fungicide

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Copper fungicide for fungal diseases and plant diseases.

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Organic Seaweed Fertiliser

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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

To prevent and control channel mealybug infestation in citrus crops, it is recommended to implement a combination of cultural, mechanical and chemical measures. This includes regular pruning of infested branches, biological control through the introduction of natural enemies of the mealybug, such as certain species of ladybugs and parasitoid wasps, and the selective use of insecticides when necessary.

Recommendations

Consulting on plant problems and diseases
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