Blueberry plants can with burnt looking leaf tips have contracted a disease called Bilberry leaf scorch. Blueberry leaf scorch is a disease caused by the bacterium Xylella fastidiosa, according to the University of Georgia. It is important to correctly identify blueberry leaf scorch, burn because the symptoms similar to other health problems such as fertilizers, drought watch or root rot, according to the University of Georgia.
Blueberry leaf scorch
The bacteria that causes blueberry leaf scorch inhabited many different host plants without causing symptoms, according to the University of Georgia. Blueberry plants infected with the bacteria in insects, such as saliva or sniper bugs feed off the plant. The bacteria infect the water-conducting tissues of the blueberry plant or xylem. Once in the xylem is the bacterial colonies that prevent adequate nutrients or water transport of the entire system, according to the University of Georgia.
Burnt-looking leaf tips or leaf scorch is one of the first indicators that your blueberry plant is infected. The burned area of the sheet often shows a dark line between healthy leaf tissue and the burned area. In addition, blueberry plants produce smaller branches, defoliate and yellowing stalks. In fact, yellow stalks are unique leaf scorch disease. Finally, leaf scorch disease kills from the blueberry plant.
Gardeners can reduce the spread of blueberry leaf scorch by removing the diseased plant and debris from the garden. Nearby plants easily contract blueberry leaf scorch. Throw away or burn diseased debris. Avoid diseased plants in your compost. To prevent your blueberry plants from contracting the disease, water them during the growing season. A correlation between low-water blueberry plants and blueberry leaf scorch.
No chemical control products kill the bacteria that cause the blueberry leaf scorch. However, gardeners can apply pesticides to control the insect populations that transmit the disease. Use a pesticide that insects such as cicadas, saliva controls bugs and snipers. Gardeners can use a pesticide as a leaf applied pyrethroids or oil application neonicotinoid products in the spring to control these pests, according to the University of Georgia.