Citrus paradisi Tiny Black Flies - Causes & Fixes

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Citrus Fruit Fly (Ceratitis capitata)

Adult flies lay eggs directly into the grapefruit fruit, where larvae develop and consume the pulp. This leads to internal rot and eventual fruit drop.

Very Common

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How to confirm: Inspect fallen or ripe fruit for small puncture marks on the skin and check for soft, mushy spots.

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1 Apply an organic insecticide spray to the plant to eliminate adult flies and prevent further egg-laying on the fruit.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

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2 Remove and destroy any infested or fallen fruit immediately to break the life cycle of the larvae.

3 Monitor the soil and plant environment for emerging adults using sticky traps to catch flying pests.

Super Ninja Fungus Gnat Traps - 30 Pack

30 pcs

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Fungus Gnats

The flies themselves are not attacking the fruit, but their larvae are living in the overwatered soil of the grapefruit tree. They feed on organic matter and can occasionally damage fine feeder roots.

Very Common

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How to confirm: Check if the flies emerge primarily from the soil surface when you disturb the top layer of mulch or dirt.

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shopping_cart Recommended Products

1 Reduce watering frequency and allow the top inch of soil to dry out completely to disrupt the larvae's moist habitat.

GROWIT Soil Moisture Meter SMM-V3

Water Meters

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2 Deploy yellow sticky traps to capture the adult flies and prevent them from laying more eggs in the soil.

Super Ninja Fungus Gnat Traps - 30 Pack

30 pcs

$7

In Stock

3 Apply a biological control or organic insecticide to target the larvae and adults effectively.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

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Mediterranean Fruit Fly

Similar to the Citrus Fruit Fly, these pests target citrus crops during the ripening stage, causing significant damage to the fruit's internal structure.

Common

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How to confirm: Look for small, dark exit holes near the stem end of the grapefruit.

build How to fix it

shopping_cart Recommended Products

1 Apply an organic insecticide spray to the plant and surrounding area to eliminate adult flies and larvae.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Inspect the fruit for soft spots or punctures and remove any damaged fruit immediately to prevent further infestation.

3 Clean up fallen fruit and organic debris from the base of the plant to destroy potential breeding sites.

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Black Olives/Scale Insects (Secondary Attraction)

While not 'flies,' certain scale infestations produce honeydew, a sticky substance that attracts various small flying insects like ants and flies to the citrus foliage.

Common

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How to confirm: Examine the undersides of leaves and stems for tiny, raised bumps or a sticky residue.

build How to fix it

shopping_cart Recommended Products

1 Treat the plant with an organic insecticide spray to eliminate the scale insects and the secondary flying pests.

Bonide Captain Jack's Neem Oil 32 oz

0.9 L • 1 pcs • Organic

$10

In Stock

2 Thoroughly wipe the citrus foliage with a damp cloth to remove sticky honeydew residue, which prevents further insect attraction.

3 Inspect the undersides of leaves and stems for any remaining scale clusters and prune heavily infested branches.