Ganoderma lucidum pest: big flea fly
Big flea fly (MegaselishalterataWood) synonym common flea fly, Walsing flea fly. It belongs to Diptera, Muscidae.
1. The adult is active in shape and habit, black to dark brown, 2-3 mm in length, short antennae and Awned. The protuberance of middle chest dorsal plate is higher. The larva is maggot-shaped, yellowish to white, the front end of the head is pointed, the body has 11 notches, the back end is obliquely round, there are 2 papillae, posterior valve type. The pupa is brown. The egg is white, oval, and the egg period is about 7 days.
The adults have strong phototaxis, which are active frequently above 17 ℃ and lay eggs on the culture medium near mycelium growth. It takes only 15 days to complete a generation under 24 ℃, and a large number of them occur in spring and summer.
two。 The damage is caused by the larvae to damage the hyphae. Generally, the flea fly larvae invade close to the covered soil and concentrate on the mycelium where the buds grow, resulting in the death of the fruiting body. High humidity, poor ventilation, serious occurrence.
3. Prevention and cure method
(1) install screen on doors and windows to prevent adults from flying into and lay eggs, and at the same time do a good job in site cleaning and hygiene.
(2) the occurrence period of flea flies is irregular, and they get into the material and do harm, so the control should be mainly to kill adults. Pay attention to the humidity of covering soil should not be too high, in order to reduce the occurrence of a large number of flea flies.
(3) in severe cases, 1500 times diazinone was sprayed before or after collecting Ganoderma lucidum, and 3000 times deltamethrin was sprayed in the period of sprouting.
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Ganoderma lucidum pest: Oriental mole cricket
Oriental mole cricket (GryllotalpaorientalisBurmeister) is commonly known as local dog, ground dog. It belongs to Orthoptera, Gryllidae. 1. Morphological and individual adults are 29-31 mm long. The head is conical, dark brown. The dorsal plate of the anterior chest is oval. The forewings are yellowish brown, which can be extended to the middle of the abdomen, the abdomen is fusiform, the abdomen back is dark brown, the ventral surface is dark yellow, and there is a pair of long tail whiskers at the end. The forefoot is specialized as an excavated foot, and there are 3-4 spines on the dorsal medial edge of the hindfoot intestinal segment. The body shape of nymph is similar to that of adult.
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Ganoderma lucidum pest: concave yellow mushroom beetle
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
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