Diseases and their control of Elaeocarpus elaeocarpus

Diseases and their control of Elaeocarpus elaeocarpus

Leaf blight

The main symptoms of the disease: leaf spots or dead leaves. When leaf blight occurs, appropriate measures should be taken in a timely manner, and pesticides can be used for treatment. Use Butojin wettable powder, or cypermethrin wettable powder, thiophanate-methyl and other agents for spraying to eliminate the disease.

Cataplexy

The main symptoms after the disease: The Elaeocarpus plants suddenly fall over and turn black and brown. Damping-off disease is mostly caused by the invasion of pathogens. The pathogen invades the roots of seedlings through the soil, causing the seedlings to fall to the ground. This is what we call cataplexy. In addition, the symptoms of disease in lignified plants are different from those in seedlings, mostly wilting. Moreover, if the growing environment is humid, pink colonies of pathogens will appear at the location of the diseased plants.

For the disease of seedlings, it is recommended to use drug treatment, spraying methyl thiophanate wettable powder, dichlorodiphenyltrichloroethane and other agents for sterilization. Because damping-off disease is contagious, in order to reduce losses and better control the disease, the diseased plants should be removed in a timely manner to prevent infection of healthy plants. All diseases should be prevented from the very beginning. To this end, it is recommended to disinfect the soil and kill the pathogens during the initial planting period.
Damping-off disease of seedlings is caused by Rhizoctonia solani in the soil. The pathogen mostly invades the base of the rhizomes of seedlings from the surface soil. When the plants are infected, the diseased parts sink and shrink, and appear black-brown. Infected seedlings often fall over from the soil surface, causing sudden wiping-off (the so-called sudden wiping-off disease). If the seedling tissue has become lignified, the diseased seedlings often do not fall over but show symptoms of damping-off. When the soil is moist, a pink mold layer often forms on the diseased part.

Sunburn