· Grape · Strawberry
After an infection with Crown Rot, single leaves start to turn brown. Starting with the heart leaves, the aerial plant parts wither and finally die off. Inside the root, you can find clearly delimited, red brown, rotten spots. These are causing the disruption of the plants water provision. The symptoms of Crown Rot appear in spring, very soon after blossom. Healthy plants growing in the immediate neighborhood of infected plants, which is typical for the disease. In warm spring weather, first losses appear after 4-6 weeks.
The Crown Rot pathogen is a fungus (Phytophthora cactorum) that can survive in the soil for years. Its zoospores depend on free water to spread and are be distributed by splashing water. Waterlogging is a common source of Root Rot fungus infection.
No direct treatment is possible. Apply preventive measures to avoid infection.
Always consider an integrated approach with preventive measures together with biological treatments if available. Apply Mefenoxam and Metalaxyl by drip irrigation to contaminated areas to prevent reinfections.
Plantix offers detailed weather information on the following issues:
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.
Connect to farmers, gardeners, experts and interested people around the world that discuss plant diseases, remedies and best practice for sustainable farming.
Plantix analyzes your picture within a few seconds and gives you instant feedback on your plant problem.
On top of the detection result, Plantix offers you a detailed description of possible solutions - both biological and conventional.
Plantix offers information on preventive measures to protect your crop from the next attack.