MySheen

Ganoderma lucidum pest: concave yellow mushroom beetle

Published: 2024-11-08 Author: mysheen
Last Updated: 2024/11/08, The concave yellow mushroom beetle (DacnejaponicaCrotch) is also known as the small mushroom beetle and the concave mushroom beetle. It belongs to Coleoptera, Fungicidae. 1. Morphological and habitual adults are 3-4.5 mm long, oval and glossy. Head yellowish brown, antennae 11 nodes, brown. The compound eye is large and spherical. The width of the anterior chest dorsal plate is wider than long, yellowish brown, and deeper in the middle. The inner edge of the base of the sheath wing has a pair of square black spots, the base of the sheath wing is semi-yellowish brown, and the end is black. Feet yellowish brown, thin. From the shoulder angle oblique to the middle seam with red and yellow markings, and red and yellow

The concave yellow mushroom beetle (DacnejaponicaCrotch) is also known as the small mushroom beetle and the concave mushroom beetle. It belongs to Coleoptera, Fungicidae.

1. Morphological and habitual adults are 3-4.5 mm long, oval and glossy. Head yellowish brown, antennae 11 nodes, brown. The compound eye is large and spherical. The width of the anterior chest dorsal plate is wider than long, yellowish brown, and deeper in the middle. The inner edge of the base of the sheath wing has a pair of square black spots, the base of the sheath wing is semi-yellowish brown, and the end is black. Feet yellowish brown, thin. From the shoulder angle oblique to the middle seam there are red and yellow markings connected, and the red and yellow markings in the back of the sheath wing almost form a "concave" shape, hence the name concave mushroom nail. Larvae hatch 0.8 mm long, mature 5-6 mm, yellowish white, brown head, light yellow feet.

There are 2 generations a year, and 3-4 generations can occur indoors, overwintering with mature larvae and adults. The activity began in early April and spawned from mid-April to late May. The adults are pseudo-dead and like to live in groups, hatching into larvae from late May to June, pupating in late June, Eclosion into adults in late July, mating and oviposition in mid-August.

two。 In the damage situation, the adults mostly eat the mycelium at the edge of wood cracks or holes, and the fruiting body is transferred to feed on the stalk and cap after the occurrence of fruiting body. Most of the larvae eat into the xylem from the epidermis and eat the mycelium crisscross. It is also harmful to fruiting bodies, forming curved pores, so it has a great impact on the yield and grade of Ganoderma lucidum.

3. Prevention and cure method

(1) do a good job in the hygiene of cultivation sites and warehouses, and deal with pests in time when they are found.

(2) if the Ganoderma lucidum fruiting body produced or purchased by itself is found to be infested by concave yellow mushroom beetle, it should be exposed on more than 45 ℃ cement for 2 days and sealed into the warehouse. If the condition is put in the cold storage below 0 ℃ for 3-5 days, the pests can be frozen to death.

(3) the segment wood or fruiting body with insects can be fumigated with aluminum phosphide to kill insects.

 
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