Vid
How to recognize and combat crown gall in grapevines
Crown Gall
Bacterium
Type:
Risk to the plant:
HIGH
Agrobacterium Vitis
Pathogen:
Bacteriosis
WHO CAUSES IT?
*Agrobacterium vitis* is a pathogenic bacteria that mainly affects grapevines, causing the disease known as crown gall. This bacteria has the ability to survive in soil and infected tissues for long periods of time. It is introduced into the plant through wounds, such as those caused by pruning or mechanical damage. Once inside, *A. vitis* transfers a fragment of its DNA to the plant cells, which causes uncontrolled proliferation of tissue, forming galls at the base of the stem or on the roots. During the dormant phase, the bacteria can persist in the vascular system of the vine without causing visible symptoms until environmental conditions, such as cold temperatures or plant stress, favor its active development. At this time, galls begin to form, compromising nutrient circulation and weakening the plant.
.png){kind=small}
SYMPTOMS
Crown gall is a disease that seriously affects the vine, weakening its structure and reducing its productivity. As the disease progresses, galls begin to form at the base of the plant and on the roots, obstructing the flow of water and nutrients and affecting the development of the vine, which can lead to death in severe cases.
- Formation of galls at the base of the stem or roots.
- Decrease in the general vigor of the plant.
- Delayed growth and lower production of grapes.
- Chlorosis in the leaves due to poor circulation of nutrients.
- Regressive death of branches and shoots in severe cases.
.JPG)
DEVELOPMENT CONDITIONS
Temperature:
20-30°C
Humidity:
60-90%
HOW IS IT SPREAD?
Pruning wounds, contaminated soil, pruning tools, grafts
HOW TO ELIMINATE IT?
Home treatments
There are no home treatments
Natural allies
Chemical treatments
There are no treatments for this disease. Treatments are directed at the insect vectors that transmit it. See insect treatments.
RECOMMENDED PRODUCTS TO ELIMINATE THE PEST
Sponsored link
Sponsored link
Sponsored link
Sponsored link
Sponsored link
Sponsored link
Effective against all types of fungi
REPELLENT PLANTS
Rosemary, Dill, Coriander
RECOMMENDATIONS
- Check the back of the leaves frequently, especially in dry weather.
- Spray water on the leaves to increase humidity and prevent them from settling.
- Keep plants healthy with good watering and adequate light.
- If you see cobwebs or damage, clean the leaves with a damp cloth or pressurized water.
- Use potassium soap or neem oil every few days until they disappear.
OTHER PESTS THAT MAY INTEREST YOU
DID YOU LIKE IT?
Now you can always have it on your mobile, without ads and totally FREE. TRY idMicrobe NOW!
