Anthrax
Anthrax is a common disease of garden plants and crops, which mainly damages the leaves, stems and twigs. If developing serious, it will reduce the ornamental value of plants, and even cause plant death. The disease is not easy to be found in the early stage due to its latent infection characteristics. Therefore, sometimes the opportunity for early prevention and control is lost, resulting in certain losses.
Symptoms:
Anthrax mainly occurs on plant leaves, often harming leaf margins and tips, and in severe cases, most of the leaves are black and dead.
When anthrax occurs on the stem, it produces round or nearly round disease spots, which are light brown, and there are black spots arranged in whorls on them. The disease spots on tender shoots are oval ulcer spots with slightly raised edges.
Occurrence regularity:
The pathogen overwinters in the host residue or soil as mycelium, conidia or conidial, and the suitable temperature for growth is 26 ℃ to 28 ℃ with high humidity and humidity.
