Diseases

Peach leaf curl

Taphrina deformans

Peach leaf curl is a dangerous stone fruit disease caused by the fungus Taphrina deformans. It manifests as blistering and deformation of leaves, shoots, and fruits, leading to mass defoliation and a yield loss of up to 80%.

Mentioned in descriptions 3 891 varieties reference book.

The disease affects peach, nectarine, apricot, and almond, appearing immediately after bud break. Blisters of a pale green, yellow, or scarlet red color form on the leaves, and a whitish waxy coating eventually appears on their undersides. Shoots thicken and become twisted, while affected fruits develop a smooth surface, become covered in cracks, and drop off.

Pathogen development depends on weather conditions: the critical infection period is a cool and humid spring with temperatures between +6 and +15°C. The fungus overwinters on the surface of branches, in bark crevices, and within bud scales. Upon the arrival of dry and hot weather with temperatures above +26°C, infection activity ceases.

The concept of complete resistance to the disease does not exist; however, varietal resistance is often linked to differences in bud break timing: late-maturing varieties are less likely to encounter the peak of pathogen activity. Resistance evaluation in variety testing is conducted visually using a point scale in collection orchards under comparative monitoring in identical conditions.

Sources10

Breakdown by crop

Tomato Leaf Curl 732 Peach leaf curl 283 Bean leaf curl 32 Squash Leaf Curl 24 Lettuce leaf curl 23 Tomato leaf curl 22 Cucumber leaf curl 19 Parsley leaf curl 12 Leaf curl — Kale 8 Pepper Leaf Curl 6 Peach leaf curl of nectarine 6 Curly Top — Sugar Beet 5 Melon Leaf Curl 4 Peach leaf curl of almond 4 Leaf curl — Savoy cabbage 4 Apricot leaf curl 3

Found in these crops

Tomato 942 Peach 280 Field pumpkin 33 Tomato 24 Cucumber 16 Lettuce 14 Nectarine 6 Melon 6 Bell pepper 5 hybrids between Solanum lycopersicum L. and S. habrochaites S. Knapp & D.M. Spooner 4 Almond 4 Curly kale 3

Varieties that feature this in their description

Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.

Tutti

Active

Solanum lycopersicum L. · Tomato

2 records

Shelby

Terminated

Solanum lycopersicum L. · Tomato

2 records

Tuono

Active

Solanum lycopersicum L. · Tomato

2 records

Top Titano

Active

Solanum lycopersicum L. · Tomato

2 records

Sanguine de Savoie

Active

Prunus persica (L.) Batsch · Peach

3 records

Solbello

Active

Solanum lycopersicum L. · Tomato

2 records

Tobralina

Active

Solanum lycopersicum L. · Tomato

2 records

Toboval

Active

Solanum lycopersicum L. · Tomato

2 records

Snow Sweet

Active

Solanum lycopersicum L. · Tomato

2 records

Setcopa

Terminated

Solanum lycopersicum L. · Tomato

2 records

Romy 406

Active

Solanum lycopersicum L. · Tomato

2 records

Sirali

Active

Solanum lycopersicum L. · Tomato

2 records

Red Peachy

Active

Prunus persica (L.) Batsch · Peach

3 records

Scaltro

Active

Solanum lycopersicum L. · Tomato

2 records

Sanguine vineuse

Active

Prunus persica (L.) Batsch · Peach

2 records

Sonarosa

Active

Solanum lycopersicum L. · Tomato

2 records

Porfyra

Terminated

Solanum lycopersicum L. · Tomato

2 records

Showbor

Terminated

Brassica oleracea L. (Curly kale Group) · Curly kale

2 records

Rodomonte

Active

Solanum lycopersicum L. · Tomato

2 records

Santawest

Active

Solanum lycopersicum L. · Tomato

2 records

Pink Sun

Active

Solanum lycopersicum L. · Tomato

2 records

Reliance

Active

Prunus persica (L.) Batsch · Peach

5 records

Rubizzo

Active

Solanum lycopersicum L. · Tomato

2 records

Parvati

Terminated

Solanum lycopersicum L. · Tomato

2 records

1 2 ... 34 35 36 37 38 39 40 ... 57 58 Next

Jump to page 8 17 25 27 33 41 47 50

Diseases

Powdery mildew 33 570
Fusarium wilt and blight 29 887
Viral mosaic diseases 22 022
Downy mildew 16 384
Leaf spot diseases 15 926
Rust 14 859
Verticillium wilt 12 175
Scab 12 064

All terms →

Text source

This summary is compiled from the publications listed in the sources and verified by an editor. It contains no legally significant information; it provides agronomic context for registry data rather than the registry data itself.