Cucumber Green Mottle Virus

Disease

Cucumber Green Mottle Virus

CGMMV

virus

In a Nutshell

    Light green or yellow spots and vein clearing on young leavesChlorotic mottling, crumpling, leaf deformation, plant stunting, and necrosis at later stagesFruit sometimes severely spotted, streaked or distorted and drops prematurely

Hosts: %1$s

· Cucumber · Pumpkin · Zucchini

Symptoms

At early stages of the disease, light yellow green spots and vein clearing can be observed on young leaves. Severe infections result in a chlorotic mottling, crumpling and deformation of leaves as well as plant stunting and necrosis at later stages of growth. Mature leaves can become bleached or yellow-whitish and drop prematurely. Symptoms on fruits range from completely symptomless (at least externally) to a severe spotting or streaking, deformation or dropping. The latter symptoms are particularly visible at elevated temperatures. In some cases, fruit showing no external symptoms may be internally discolored or necrotic. Premature dropping is also common.

Trigger

The symptoms are caused by the cucumber green mottle mosaic virus (CGMMV), which infects cucurbits, including cucumber, watermelon and cantaloupe. The virus can stay active for very long periods of time in dead plant material in the soil. The transmission is via infected seeds, mechanical wounds made with cutting tools, farming equipment, and through chewing insects such as beetles. It can also be passed to other plants through grafting or other tasks that could injure the crop. Sucking insects (e.g. aphids, mites, whiteflies) do not transmit this virus. Once it infects a plant, there is no known cure against this virus. In greenhouses especially, the number of infections from this virus is on the rise..

Biological Control

If you treat seeds at 70°C dry heat for up to three days, they will be free from active virus particles, but still able to germinate. Apply CGMMV test kits, if available. Apply organic insecticides targeting chewing insects.

Chemical Control

Always consider an integrated approach with preventive measures together with biological treatments if available. The application of chemical insecticides targeting chewing insects can prevent spreading of the virus. The direct treatment of viral diseases like the cucumber green mottle virus is not possible.

Preventive Measures

    Use seeds or transplants from certified sources onlyPlant resistant varieties, if availableDo not plant multiple hosts for the disease close to each otherMake sure to work with sterile tools while handling any plant parts and seedsAvoid wounding of plants during field workMonitor susceptible crops regularly for symptoms of CGMMV and remove infected plants as well as any plant debris immediatelyRemoved crop material should be burned or buriedAvoid overlapping of susceptible crops




Features

Regional Weather

Get detailed forecast and actual weather data.

Plantix offers detailed weather information on the following issues:

Precipitation

Humidity

Air Pressure

Temperature

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.

MyCommunity

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.