1. Chronic Bee Paralysis Virus
There are two kinds of symptoms: "macrocoma" or "black bee disease", which means bee CBPV infection, at room temperature, about 3-4 days to begin to show symptoms, 4-5 days to die.
Belly type (type I): tremor, inability to fly and bloating. Crawling bees on the ground in severe cases. Crawl in clumps in front of the nest door. More than 70% contain chronic paralysis virus.
Black bee type (type II): The sick bee has stripped of its villi and is black and shiny. Sick bees are initially able to fly, are often attacked by healthy bees, and are turned out of boxes by guard bees. Final tremor, death.
Spreads rapidly in bee colonies, is not seasonal, is associated with accidental damage caused by bees during normal gathering activities, and may spread through wounds. Severe weather, hunger, and excessive populations can increase the incidence of morbidity. There are virions in both the abdominal ganglion and the thoracic ganglia.
2. Cystic larval disease virus
2.1 Beekeeping knowledge of beekeeping larval disease virus, introduction of bee virus (1), bee cystic larval disease virus
2.2 Chinese Scabrood Virus (CSBV or AcSBV)
In 2010, 75% of colonies were infected, and infection occurred recommended to break the king of prisoners, screening disease-resistant bee species.
3. Black King Tai Virus (BQCV)
BQCV infection with adult worker wasps can result in K-winged wings.
4. Deformed Wing Virus
On the right is a bee infected with a residual wing virus
5. Bee Iridescent Virus
The disease is called "nodular disease", and the patient's bees cannot fly, and the bee colonies are scattered into small clusters. Individual bees continued to die of illness, and after 2 months, the whole herd died.
6. Medium bee large larval disease virus (Apissinesis Piornavirus)
Place of occurrence: Longmen district, Guangdong.
Features: acute onset, great harm, large larvae onset, the larvae of the disease are not as fluid sacs as the middle cystic disease.
In 1981, a non-inclusion spherical virus was isolated from diseased and dead larvae in China, and initially named it the medium bee large larval disease virus. This virus is the first time that this virus has been detected in China.
<h1 class= "pgc-h-arrow-right" > the control of bee virus disease</h1>
Strengthen quarantine, disinfection, to prevent the spread of viruses; physical and chemical therapy; use of virus interference to treat viral diseases; strengthen management, improve feeding techniques: control mites; breed disease-resistant varieties.