Prevention and treatment of parasitic diseases of silkworms

1. Multiplicity @ # @ 261 infectious disease

1 symptom

There is a black triangular spot on the parasitic part of the silkworm, with yellowish fly eggshell sticking to it.

2 prevention and treatment

① hunts and kills fly pupae. ② uses "killing silkworm flies" to kill maggots. Body spray 300 times, spray mulberry leaves to feed silkworms with 500 times liquid. The 5th instar silkworm was used once every other day, and the 4th instar was used twice, but not before the 3rd instar.

Wall lice disease

1 symptom

The young silkworms died quickly, most of them had protruding head and chest and dark body color; the injured silkworms could not peel off and die in sleep; the big silkworms suffered from different diseases such as excretion of beaded or irregular feces, prolapse of anus, small hairy feet, protruding head and chest, bending of silkworm body, spitting water and so on.

2 prevention and treatment

Smoke with sulfur or spray with 300 times "killing silkworm flies". The source of lice should be found and cut off when the disease occurs in silkworm period. Quickly adjust the plaque and spray the silkworm body with "killing silkworm flies" to drive out ticks. The concentration of "killing silkworm flies" is 1000 times for 1-year-old, 500-fold for 2-year-old, 300-fold for 3-5-year-old, and do not pile cotton, wheat straw, rice and so on in the silkworm room.