As a lecturer, also I’m working as trainers for farmers in remote areas. Many of them lack of knowledge and poverty condition. My working areas has a highly synthetic pesticides application. Few months ago, I saw many honey bees coming into my observation area ~ in Brassicaceae crops ~ for feeding nectar. Commonly they coming after spraying of insecticides. I want to know how to detect residue contamination on honey bees or their product?I mean, simple and easy methods without laboratory detection, how characteristic of honey bee that contain many residues and where of their body we can find it? It will be a practice skill and very useful information for me and my farmers.
I guess you will note high mortality rate among bees, diarrhea, yellow droplets, as direct evidences. The indirect approach is to know the insecticide compounds and the subsequent intoxication symptomes
To : Imadeddin Moh'd Albaba
Dear Sir,
Did I must find their nest to look direct evidence of pesticides contaminant to honey bee?they are wild bees. At the moment, I'm never find their cadaver on field. Overall, I would say thank you very much your answer. It's very useful for me and I can transfer into my farmers.
Are they wild honey bees or hive box honey bees? Any way, take honey samples from their hive or nest and carry out laboratory analysis for residual pesticide content.
Dear Jacob...
My last observation they are a honey bees. It's very difficult find their honey, because I don't know where their nest. Can I detect residue from bee part body, I mean cadaver of them?please show me some literature to support my laboratory working....thanks a lot your answer.
"Low Doses of Radiation" - we have such a Laboratory in our Institute They have several stations near Chernobyl - to study the effects of radiation and radionuclides...
But here I would like to refer you to a brilliant book "Chernobyl Prayer by the 2015 Nobel Prize Winner in literature -Svetlana Aleksievich.
Here is - what she is writing about bees. The bees during 4 days after Chernobyl Catastrophy did not take off from beehives. Interestingly: the wasps - had left the contaminated region and returned back only 3-4 YEARS later.
Dear Dr. Sri,
please allow me to extend her very important question also to herbicides. From some years I have breed bees for hobby (only 4 beehives). In the area where my beehives are, no insecticide is used, but the nearby fields are grown with wheat alternating with Italian sainfoin (Hedysarum coronarium). So some glyphosate (selective endemic herbicides) is generally used in January, February and the first half of March. On the Brassicaceae crops are also used herbicides? What are the effects of these herbicides on bees and honey?
Ciao
Leonardo
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