Kiwi vine with heart-shaped leaves and fuzzy brown kiwi fruit
Plant Guide

Kiwi Problems

Actinidia deliciosa / A. chinensis

Kiwi vines are long-lived, vigorous climbers that need a strong support structure, both a male and female plant to fruit, and patience — it can take 3-4 years before the first real harvest. Bacterial canker is the disease every kiwi grower should watch for.

21 problems coveredFungalRootsGrowthLight

All Kiwi Problems

Critical
Fungal

Kiwi — Bacterial Canker (Psa) on Kiwi Vines

Reddish-brown, angular leaf spots with yellow halos appear, along with cane cankers that ooze a rust-red bacterial exudate, and entire canes or the whole vine can collapse in severe cases.

Critical
Roots

Kiwi — Root Rot in Kiwi Vines

The vine wilts and declines despite adequate watering, with roots appearing brown, soft, and mushy rather than firm and white when checked.

Moderate
Fungal

Kiwi — Botrytis Grey Mould on Kiwi Fruit

A fuzzy grey mould develops on fruit, often starting at the stem end, spreading rapidly especially on fruit in storage or during cool, humid weather near harvest.

Moderate
Growth

Kiwi Vine Not Setting Fruit

The vine flowers but produces no fruit, or only a handful of small, poorly-formed fruit despite abundant blossom.

Minor
Light

Kiwi — Sunscald on Kiwi Fruit

A pale, hardened patch develops on the sun-facing side of the fruit, especially after sudden exposure from pruning or storm-damaged foliage.

Moderate
Stems

Kiwi — Winter Cold Damage on Kiwi Vines

New growth emerging in spring is blackened or dies back after a late frost, and severe winter cold can kill entire canes or damage the main trunk.

Minor
Pests

Kiwi — Leaf Roller Caterpillars on Kiwi Vines

Leaves are rolled or webbed together with caterpillars feeding inside, leaving ragged holes and sometimes damaging young fruit that touches rolled leaves.

Minor
Pests

Kiwi — Scale Insects on Kiwi Vines

Small, immobile brown or grey bumps attach to canes and leaf undersides, secreting honeydew and weakening the vine over time.

Minor
Pests

Kiwi — Aphids on Kiwi Vines

Clusters of small soft-bodied insects gather on new shoots and leaf undersides, leaving sticky honeydew and causing curling of affected foliage.

Moderate
Pests

Kiwi — Spider Mites on Kiwi Leaves

Fine yellow stippling spreads across leaves, with webbing visible in heavier infestations during hot, dry weather.

Minor
Nutrients

Kiwi — Iron Deficiency Chlorosis in Kiwi Vines

New leaves turn yellow with distinctly green veins, an interveinal chlorosis pattern, most common in alkaline or heavily limed soil.

Moderate
Stems

Kiwi — Vine Dieback on Kiwi Plants

Sections of vine or entire canes turn brown and die back, sometimes progressing toward the main trunk, while healthy growth continues elsewhere.

Minor
Growth

Kiwi — Slow Establishment in Newly Planted Kiwi Vines

A newly planted vine grows very slowly or barely at all in its first season or two, showing minimal new growth compared to expectations.

Moderate
Fungal

Kiwi — Powdery Mildew on Kiwi Leaves

A white powdery coating develops on leaf surfaces, particularly in humid conditions with poor airflow through a dense canopy.

Moderate
Growth

Kiwi Fruit Dropping Before Ripening

Fruit falls from the vine while still small and hard, sometimes in noticeable quantity, well before the normal autumn harvest window.

Minor
Stems

Kiwi — Wind Damage to Kiwi Vines

Vines tear loose from their trellis or canes break during strong wind, sometimes damaging developing fruit clusters.

Minor
Growth

Kiwi — Excessive Vine Growth But No Fruiting

The vine grows extremely vigorously with lush foliage covering the trellis, but produces little to no fruit despite reaching a mature size.

Moderate
Roots

Kiwi — Root-Knot Nematodes on Kiwi Vines

The vine shows general decline and reduced vigour despite adequate care. Roots, when examined, show small knotted galls along their length.

Minor
Growth

Kiwi — Splitting Fruit on Kiwi Vines

Cracks appear on the fruit's skin, typically during rapid growth phases, especially after inconsistent watering.

Minor
Fungal

Kiwi — Leaf Spot on Kiwi Vines

Small, circular brown spots scatter across leaves, sometimes merging into larger dead patches in humid conditions, causing premature leaf drop.

Moderate
Growth

Kiwi — Frost Damage to New Kiwi Growth

Tender new shoots and leaves blacken and wilt after a late spring frost, while older, hardened growth remains unaffected.

Kiwi Care Guide

Light, watering, humidity, fertilising, repotting and propagation — everything you need to keep your Kiwi thriving.

Full care guide →

See how growers fixed these problems

Browse real Kiwi grow diaries from the community — treatments, timelines, and results.

Browse community diaries →

Common Kiwi Questions

Why does my kiwi vine flower but never set fruit?

Reddish-brown, angular leaf spots with yellow halos appear, along with cane cankers that ooze a rust-red bacterial exudate, and entire canes or the whole vine can collapse in sever… Read the full guide →

What is bacterial canker on kiwi vines?

The vine wilts and declines despite adequate watering, with roots appearing brown, soft, and mushy rather than firm and white when checked.… Read the full guide →

Do I need a male and female kiwi plant to get fruit?

A fuzzy grey mould develops on fruit, often starting at the stem end, spreading rapidly especially on fruit in storage or during cool, humid weather near harvest.… Read the full guide →

How do I protect kiwi vines from winter cold?

The vine flowers but produces no fruit, or only a handful of small, poorly-formed fruit despite abundant blossom.… Read the full guide →

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