Beekeeping beware of honeybee tea nectar poisoning

1. Etiology

The experimental analysis showed that Camellia nectar mainly contained high polysaccharides in addition to trace caffeine and glycosides. Toxicity experiments show that camellia nectar is not toxic, and the cause of bee poisoning is that bees can not digest and utilize the oligosaccharides in camellia nectar, especially the combined galactose components, which cause physiological disorders.

2. Symptoms

Camellia nectar poisoning mainly caused the death of bee larvae. The dead insect has no definite shape and no odor, which is obviously different from the larval death symptoms caused by pathogenic microorganisms.

3. Rescue measures

By using regional feeding and management combined with drug detoxification, the bee colony can not only make full use of the source of camellia honey, but also eat camellia honey as little as possible, so as to reduce the degree of poisoning. According to the strength of the colony, partition management can be divided into two methods: relay box partition management and single box partition management.

① relay box partition management

This measure is applicable to the strong colony (more than 6 frame-footed bees). The specific method is to first divide the nest box into two areas with an isolation board, and put honey spleen, powder spleen and an appropriate amount of empty spleen together with queen bees in any area of the nest box to form a breeding area. then the remaining spleen together with the bees are raised to another area of the nest and in the relay box to form the production area (honey and pulp are collected in this area). The relay box and the nest box are separated by a royal board, so that the queen bee cannot pass through, and the worker bee can enter and leave freely. In addition, in the breeding area, in addition to the edge spleen near the production area, a honey powder spleen and a frame feeder should be added respectively in order to artificially supplement feeding and prevent bees from moving camellia nectar into the breeding area. The nest door opens in the production area, and the nest door on one side of the breeding area is equipped with an iron gauze nest door controller, so that bees can only go out but not in.

② single box partition management

The nest box is divided into two areas with an iron yarn isolation plate, and then the honey spleen, powder spleen and appropriate amount of empty spleen and capped spleen are put into any area with the queen bee to form a breeding area. The other district forms the production area. Cover the yarn cover, pay attention to leave a gap of 0.5 to 0.6 cm between the isolation plate and the gauze cover, so that the bees can pass freely, but the queen bee cannot pass through. In the breeding area, in addition to adding a honey powder spleen to the frame near the production area, a frame feeder is also added near the partition to be used as artificial supplementary feeding and to prevent bees from moving camellia honey into the breeding area. however, a bee path is still left on one side of the frame beam in the far-high production area so that bees can get in and out freely. The nest door is opened in the production area, and the nest door on one side of the breeding area is equipped with an iron gauze nest door controller, so that the bees can only go out, and the collected bees can only enter the production area, so as to avoid the poisoning and death of the larvae in the breeding area and achieve the purpose of rescue.

The combination of ③ drug feeding and feeding management

First, the breeding area is sprayed or irrigated with detoxification drugs containing a small amount of syrup (0.1% multi-enzyme tablets, 1% ethanol and 0.1 rhubarb soda) every evening; 1:1 syrup or honey is fed the next day, and pay attention to replenishing the right amount of pollen. Second, the honey-gathering area should pay attention to timely honey collection. In the peak period of honey flow of camellias, honey is usually collected once every 3-4 days. If the colony is strong, royal jelly can be produced or the virgin king can be used to get honey. They were sprayed and fed with detoxification syrup every 3 to 4 days.