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Lilium orientalis Rialto Tiny Black Flies
eco Tiny Black Flies

Lilium orientalis Rialto – Tiny Black Flies

Why does your Lilium orientalis Rialto have tiny black flies? Diagnose the cause and fix it with our step-by-step guide.

yard View full Lilium orientalis Rialto care guide
Jump to cause: Fungus Gnats (Sciarid Flies) Overwatering and Soil Compaction Decomposing Organic Matter

search Possible Causes

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Fungus Gnats (Sciarid Flies)

The larvae of these flies live in the top layer of the soil and feed on organic matter or decaying root tissue. In Oriental Lilies, high humidity and frequent watering required for 'Rialto' blooms create the perfect breeding ground for them.

Very Common
lightbulb
How to confirm: Set a yellow sticky trap near the base of the lily to confirm the presence of small flying adults.
build How to fix it
shopping_cart Recommended Products
1 Deploy yellow sticky traps to capture the adult flying gnats and break the breeding cycle.
Super Ninja Fungus Gnat Traps - 30 Pack
Super Ninja Fungus Gnat Traps - 30 Pack
30 pcs
$7
In Stock
2 Allow the top inch of soil to dry out completely between waterings to eliminate the moist environment larvae need to survive.
GROWIT Soil Moisture Meter - Blue
GROWIT Soil Moisture Meter - Blue
Water Meters
$12
In Stock
3 Apply a biological control or organic insecticide to target the larvae living in the soil organic matter.
Bonide Captain Jack's Neem Oil 32 oz
Bonide Captain Jack's Neem Oil 32 oz
0.9 L • 1 pcs • Organic
$10
In Stock
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Overwatering and Soil Compaction

Excessive moisture in the lily pot prevents oxygen from reaching the roots, causing organic breakdown which attracts flies. This can lead to Bulb Rot, a critical issue for Oriental Lilies.

Very Common
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How to confirm: Stick your finger two inches into the soil to check if it remains saturated long after watering.
build How to fix it
shopping_cart Recommended Products
1 Reduce watering frequency and allow the top inch of soil to dry completely before watering again to eliminate the moist environment attracting flies.
GROWIT Soil Moisture Meter SMM-V3
GROWIT Soil Moisture Meter SMM-V3
Water Meters
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2 Repot the lily in a well-draining, aerated medium and incorporate perlite to alleviate soil compaction and prevent bulb rot.
Legigo Perlite 15qt
Legigo Perlite 15qt
14.2 L • Perlite
$22
In Stock
3 Apply yellow sticky traps near the soil surface to capture and reduce the adult population of fungus gnats.
Super Ninja Fungus Gnat Traps - 30 Pack
Super Ninja Fungus Gnat Traps - 30 Pack
30 pcs
$7
In Stock
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Decomposing Organic Matter

If there are old, dying lily leaves or unabsorbed fertilizer pellets in the pot, they serve as a primary food source and breeding site for flies.

Common
lightbulb
How to confirm: Remove any yellowing or dead foliage from the base of the 'Rialty' stem to reduce organic debris.
build How to fix it
shopping_cart Recommended Products
1 Remove all decaying organic matter, such as dead lily leaves or unabsorbed fertilizer pellets, from the soil surface to eliminate breeding sites.
2 Apply yellow sticky traps near the soil surface to capture and reduce the adult fly population.
Super Ninja Fungus Gnat Traps - 30 Pack
Super Ninja Fungus Gnat Traps - 30 Pack
30 pcs
$7
In Stock
3 Ensure the top layer of soil is well-aerated and avoid overwatering to prevent further decomposition of organic material.
GROWIT Soil Moisture Meter - Blue
GROWIT Soil Moisture Meter - Blue
Water Meters
$12
In Stock

Other Lilium orientalis Rialto problems

Your plant might also be experiencing one of these issues:

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eco Drooping Leaves chevron_right
eco Sticky Leaves chevron_right
eco White Cottony Spots chevron_right
eco Sudden Leaf Drop chevron_right
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