Apple Leaf Miner


Apple Leaf Miner

Lyonetia clerkella


In a Nutshell

    Irregular or serpentine white or pale gray tunnels appear on leavesThe passageway are sometimes crossing the main veins or the midribA continuous line of black larval frass runs alongside the tunnels

Hosts: %1$s

· Apple · Pear · Quince · Cherry · Apricot · Plum · Peach


Irregular or serpentine white or pale gray lines appear on leaves. These correspond to long, sinuous passageways that are bored by the larvae while feeding between the two leaf epidermis. They are sometimes crossing the main veins or the midrib. The activity of one larvae is limited to one leaf and it never passes to another one. A close look shows a continuous line of black larval frass alongside the tunnels. The frass is actually ejected through holes chewed in the lower epidermis and is commonly seen hanging from the mine in threads. Having finished their feeding, the caterpillar exit the leaves to build pupae suspended from the underside of leaves.


Symptoms are the result of the feeding activity of the larvae of Lyonetia clerkella. Adults are small, with an elongated brown body and a wingspan of about 7-9 mm. Moths overwinter under cracks on the bark or in other shelters. They are nocturnal and are attracted to light. Their narrow silvery-white forewings are marked with black and brown spots on their tips and fringed with a long thin brush of dark hairs. Their hindwings are brown and even narrower, also with a long brown fringe. Females lay oval, whitish eggs, one by one, on the underside of leaves but inside the tissues. After hatching, the caterpillars start to bore sinuous tunnels (mines) between the two leaf epidermis and feed on the tender tissues. Larvae are whitish to pale green, with a brown or black head and and generally remains within the leaf.

Biological Control

In most cases, treatment is not necessary, since a minor infestation leads only to aesthetic blemishes. You should remove affected leaves. Neem oil can be applied. to deter the moths from laying their eggs on the leaves. Insecticide based on bacterial compounds (Spinosad) can also be used to kill the larvae

Chemical Control

Always consider an integrated approach with preventive measures and biological treatments if available. Use insecticides based on pyriproxyfen

Preventive Measures

    Use yellow sticky traps to monitor or mass-catch the mothAvoid excess fertilization that would enhance leaf growth and make them more attractive to the larvaeRemove root initials that contribute to the amount of food available for larvaeRemove infected leaves or branchesMonitor the orchard regularly for symptoms


Regional Weather

Get detailed forecast and actual weather data.

Plantix offers detailed weather information on the following issues:



Air Pressure


Wind speed

Plantix Community

Get in touch with experts around the world.

Post your questions

You can post your questions and pictures and get feedback from other farmers or gardeners. Plantix' experts will answer your questions related to plant diseases and pests.


Exchange with Plantix users around you, in your language and related to the crops you grow.

Global Community

Connect to farmers, gardeners, experts and interested people around the world that discuss plant diseases, remedies and best practice for sustainable farming.

AI-Driven Disease Detection

Instant diagnostics and solutions based on your picture

Image Recognition

Plantix analyzes your picture within a few seconds and gives you instant feedback on your plant problem.

Customized Management Options

On top of the detection result, Plantix offers you a detailed description of possible solutions - both biological and conventional.

Preventive measures

Plantix offers information on preventive measures to protect your crop from the next attack.