MySheen

Why is it forbidden to use insecticides in litchi flowering period?

Published: 2024-11-05 Author: mysheen
Last Updated: 2024/11/05, Experimental research and production practice have proved that the pollination of litchi at flowering stage is the guarantee of high yield of litchi, and the honey brewed by bees collecting pollen is also a natural health food for human beings. In order to prevent bee poisoning and honey pollution, ensure that there are enough workers to collect nectar, improve the effect of pollination and protect human health.

Experimental research and production practice have proved that the pollination of litchi at flowering stage is the guarantee of high yield of litchi, and the honey brewed by bees collecting pollen is also a natural health food for human beings. In order to prevent bee poisoning and honey contamination, ensure that there are enough workers to collect nectar, improve the effect of pollination and protect human health, litchi is prohibited from spraying insecticides before flowering and before the colony is evacuated. The spraying of litchi during flowering, especially organophosphorus and organochlorine pesticides, is absorbed into plant tissues, part of which is decomposed at the end of flowering and then secreted with honey, and bees are poisoned in the process of sucking honey containing pesticide residues. The results showed that the honey secreted 27 days after spraying omethoate in litchi flowering could still poison the bees. In addition, after the low-toxic nectar is collected and brewed by bees, the toxic content increases, and people's health can not be guaranteed when they eat the honey containing pesticide residues. Therefore, spraying insecticides should be prohibited before litchi blossoms (depending on the residual period of pesticides) and before bees leave the orchard. In addition, there are often more flies in the litchi orchard during flowering. These flies can also help pollinate, but spraying pesticides during flowering will also kill them.

 
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