Ganoderma lucidum disease: verrucous spore brown ground bowl fungus

Alternaria alternata (PezizabadiaPers.) It belongs to the subphylum ascomycetes, Arteriacea, Sphaeroptera, Armillariaceae.

1. Morphological characteristics: ascus bowl-shaped, sessile, dark brown, 3-6 cm wide. The ascus is cylindrical in the upper part, tapering downward into a stalk. The spores are arranged in a single row in the upper part of the ascus, oval, with obvious small sunken process. The side wire is light yellow.

two。 Morbidity regularity

The main results are as follows: (1) the spores are transmitted by air flow and wind, and the disease can also be caused by the introduction of culture material and covered soil.

(2) it is easy to occur under the conditions of rich organic matter, high humidity of culture site, poor ventilation and so on.

3. Damage symptoms bed culture materials and territory to grow a number of nearly round, slightly fleshy fruiting bodies, the size of mung beans to soybean grains. After growing up, the apical opening forms a cup-shaped or bowl-shaped fruiting body, which is nearly sessile. In the later stage, the edge is petal-shaped, and the ascus is released. When damaged by verrucous spore brown ground bowl fungus, the matrix loses nutrients and water, which affects the growth and nutrient accumulation of Ganoderma lucidum hyphae, resulting in a decrease in yield.

4. Prevention and cure method

(1) do a good job in the cleaning and hygiene of the site.

(2) the covered soil was disinfected.

(3) when it is found that the occurrence of the fruiting body of the disease should be removed in time and dealt with centrally to prevent the spread of the disease.