MySheen

Disease Ganoderma lucidum Alternaria

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, Streptomyces is known as NeurosporasitophilaSh.etDodge, also known as Neurospora or Erythromycosis, Bread Mould, Neurospora, and Candida albicans. It belongs to the subphylum ascomycetes, Chlamydia faecalis and Neurospora. It is a kind of miscellaneous bacteria which is very threatening in the production of edible fungi of Ganoderma lucidum. It occurs and spreads quickly. After the original species of the symptom is damaged, a fleshy to red conidia pile is formed on the outside of the cotton plug, which surrounds the whole mouth of the bottle, and the spread of pollination occurs at the slightest touch.

Streptomyces is known as NeurosporasitophilaSh.etDodge, also known as Neurospora or Erythromycosis, Bread Mould, Neurospora, and Candida albicans. It belongs to the subphylum ascomycetes, Chlamydia faecalis and Neurospora. It is a kind of miscellaneous bacteria which is very threatening in the production of edible fungi of Ganoderma lucidum. It occurs and spreads quickly.

The hyphae in the strain bottle changed from gray-white to yellow-white.

The asexual generation of the pathogen belongs to the semi-knowing subphylum, the hyphae are colorless and polyseptal, the conidiophores grow from the hyphae and produce conidia at the top of the conidiophores. In the early stage, the conidia at the top of the conidiophores are long-chain and branchable, and in the later stage, the hyphae can break into spores, irregular shapes, different sizes, pink or orange, pink.

According to the characteristics of the disease, the pathogen is widely distributed, lives on organic matter and spreads through airflow. The culture material was not sterilized thoroughly, the inoculation room or box was not sterilized thoroughly, the aseptic operation rules were not observed during inoculation, the cotton plug was not replaced after damp, and the original seed or mother seed was contaminated with miscellaneous bacteria in the seed bag. Alternaria prefers high temperature and humidity and grows rapidly when there is plenty of oxygen. The high air humidity and poor ventilation in the strain culture room are conducive to the occurrence and spread of the disease, and the occurrence of bacteria is closely related to the indoor and outdoor environmental hygiene conditions of the strain production room.

Prevention and cure method

The main results are as follows: (1) to do a good job in the environmental hygiene of bacteria production houses, centralized disposal and deep burying of wastes to prevent the growth and spread of bacteria.

(2) sterilize the culture material thoroughly to avoid moisture in the cotton plug and reduce the damage to the strain bag.

(3) disinfect the inoculation site and utensils with potassium permanganate.

(4) when inoculating, replace the cotton plug in time and sprinkle a layer of lime powder on the cotton plug to absorb moisture and prevent bacteria.

Potassium permanganate is commonly used.

 
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