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Entries with tag varroa .

Scientists determine how to control parasite without harming bees

The parasitic mite Varroa destructor (varroa) is generally agreed to be the greatest threat facing honey bees worldwide. Despite much research, losses continue due to lack of effective control measures, because the mite has become resistant to several commonly used chemicals. The natural product oxalic acid has been widely used in mainland Europe but surprisingly little previous research...
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Bloodsucking mite threatens UK honeybees

Scientists have discovered how a bloodsucking parasite has transformed Deformed Wing Virus (DWV) into one of the biggest threats facing UK honeybees. Honeybees are a key pollinating insect, adding around $40Bn globally to crop value. Over recent years the spread of parasites and the viruses they transmit has resulted in high overwintering colony losses. New and emerging threats to...
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Virtual bees help to unravel complex causes of colony decline

Scientists have created an ingenious computer model that simulates a honey bee colony over the course of several years. The BEEHAVE model, published in the Journal of Applied Ecology, was created to investigate the losses of honeybee colonies that have been reported in recent years and to identify the best course of action for improving honeybee health. Click here to view a video ...
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Model of bee disease provides tool in fight against honeybee infections

Scientists at the University of Warwick have modelled an outbreak of the bee infection American foulbrood in Jersey, using a technique which could be applied to other honeybee diseases such as European foulbrood and the Varroa parasite. American foulbrood is caused by the bacterium  Paenibacillus larvae , which affects the larval stage of honeybees. It can cause the death of an...
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