Onion Teon 307 F1 Drooping Leaves - Causes & Fixes

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Water Stress (Drought or Overwatering)

Onion varieties like Teon 307 require consistent moisture to maintain turgor pressure in their succulent leaves; extreme drought causes wilting, while waterlogged soil leads to hypoxia and root dysfunction.

Very Common

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How to confirm: Check the soil moisture level at a depth of 2-3 cm; if it is bone dry or muddy, you have identified the stressor.

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1 Check the soil moisture level at the root zone using a moisture meter to determine if the plant is suffering from drought or overwatering.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

In Stock

2 If the soil is bone dry, water the plant thoroughly; if the soil is waterlogged, allow it to dry out and ensure the pot has proper drainage.

Bleuhome 10" Plant Saucer 6-Pack Black

Pot Saucers

$20

In Stock

3 For long-term moisture stability, consider using a self-watering system or adding perlite to the soil to improve aeration and drainage.

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Downy Mildew (Peronospora destructor)

This fungal pathogen causes leaves to become limp and pale, often accompanied by purplish discoloration on the underside of the leaves in high-humidity conditions.

Very Common

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How to confirm: Inspect the undersides of the drooping leaves for a fuzzy, greyish-purple growth pattern.

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1 Apply an organic fungicide to control the spread of the pathogen and protect healthy plant tissue.

Bonide Captain Jack's Copper Fungicide 32 oz

0.9 L • 1 pcs • Organic

$12

In Stock

2 Prune and remove the most heavily infected leaves to prevent the fungus from spreading to the rest of the onion crop.

Fiskars 5/8" Bypass Pruning Shears

Cutting Tools

$13

In Stock

3 Improve air circulation around the plants and avoid overhead watering to reduce the high humidity that favors Downy Mildew.

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Nitrogen Deficiency

Onions are heavy nitrogen feeders; a lack of available nitrogen prevents cell wall strength and nutrient transport, leading to weak, drooping, and pale green foliage.

Common

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How to confirm: Observe if the drooping is accompanied by a general yellowing (chlorosis) starting from the older, bottom leaves.

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1 Apply a nitrogen-rich organic fertilizer to boost foliage strength and greening.

Back to the Roots Blood Meal & Gypsum (4 Pack)

Organic Fertilizer

$40

Out of Stock

2 Supplement with a liquid seaweed fertilizer to enhance nutrient uptake and overall plant vigor.

FoxFarm Bush Doctor Kelp Me Kelp You Liquid Seaweed Fertilizer 1 Quart

0.9 L • 1 pcs

$32

In Stock

3 Monitor soil moisture levels to ensure nitrogen is being effectively transported to the roots.

GROWIT Soil Moisture Meter - Blue

Water Meters

$12

In Stock

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Onion Thrips Infestation

Thrips feed on the leaf tissue by sucking out the contents of the cells, which disrupts the structural integrity of the Teon 307 leaves and causes them to collapse or wilt.

Common

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How to confirm: Tap a drooping leaf over a white piece of paper to see if tiny, slender insects fall off.

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1 Apply an organic insecticide to eliminate the thrips population and prevent further feeding on leaf tissue.