Archives – July, 2016

BEEHAVE | The Model

From: Beehave-model.net

WELCOME

BEEHAVE simulates the development of a honey bee colony and its foraging of nectar and pollen in a realistic landscape. The purpose of BEEHAVE is to allow representing stressors, alone and in combination, of honeybee colonies within a hive and in the landscape: varroa mites transmitting the deformed wing virus (DVW) or the acute paralysis virus (APV), effects of several beekeeping practices, poor forage availability or even forage gaps in the landscape, and pesticide losses of foragers, inhive bees, or brood.

BEEHAVE can be freely downloaded from this website. It comes together with a user manual and a detailed model description. BEEHAVE is implemented in the free open-source software (NetLogo).

Leave a Comment July 29, 2016

Minneapolis Honey Bee Report 2016

From: City of Minneapolis

This report summarizes the results of a survey for 57 honey bee hive permit holders in the City of Minneapolis. The survey occurred between January and May 2016 to determine the number of honey bee colonies and extent of threats posed by the parasitic mite, Varroa destructor.

Understanding the issues

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VARROA MITES POSE CHALLENGES FOR HONEY BEE COLONIES

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Leave a Comment July 28, 2016

Jeff Harris: Honey bee deaths predate ag chemicals

From: Delta Farm Press

| Delta Farm Press

First of a series

Environmental and anti-pesticide activists have made honey bee deaths “the poster child” of their ongoing crusade against ag chemicals, particularly neonicotinoids, says Jeff Harris.

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“In the long history of man’s relationship with honey bees, going back to Aristotle, who wrote the first manual on beekeeping, there have been many instances of unexplained colony losses — and many  occurred long before agricultural pesticides came into widespread use.

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Leave a Comment July 27, 2016

Mites are major bee threat

From: Wilkes Journal-Patriot

Jule Hubbard

Varroa mites are the most devastating honeybee parasite and the key to having healthy hives is keeping their numbers low, said an N.C. Department of Agriculture official during a recent program at the Wilkes Agricultural Center in Wilkesboro.

“July is a critical time to knock varroa populations down to preserve bee colonies,” added Greg Fariss, one of four NCDA bee inspectors.

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Leave a Comment July 26, 2016

Honey bee parasite threatens horticulture industry [Australia]

From: North Queensland Register

For more than 10 years now the national government and its agencies have worked to raise awareness about the threat of Varroa mite. At many forums horticulture has been warned of the ramifications about when (not if) Varroa mite establishes in Australia. We now have the first evidence from Biosecurity Queensland that this devastating pest is here.

While we are dealing with Varroa jacobsoni rather than Varroa destructor, the experts say it is just a matter of time before jacobsoni will cause as much damage as destructor.

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Leave a Comment July 25, 2016

Beehive Size May Contribute to Colony Collapse Disorder

From: Cox’s Honey

In recent years, Colony Collapse Disorder has been blamed on a couple of factors. The first factor, and one that research has proven correct, is neonicotinoids. Neonicotinoids are chemicals found in agricultural pesticides. The second factor is the varroa mite, a microscopic parasite that attaches itself to bees, that feeds off their host and off of the honey bees’ brood.

Leave a Comment July 22, 2016

University: Marianas honeybees remain healthy

From: The Guam Daily Post

Samples from bee colonies test free of deformed wing virus

The University of Guam College of Natural and Applied Sciences (CNAS) is uncovering some very interesting information about honeybee health in the Mariana Islands.

Chris Rosario, research associate with the Western Pacific Tropical Research Center at CNAS, has been surveying bees on Guam and in the region as part of the Honeybee Health Survey funded by USDA-APHIS.

Rosario has been sampling domestic and feral hives to verify the presence or absence of the parasitic mite Varroa destructor, which uses its piercing-sucking mouthparts to feed on the blood of honeybees and their larva.

Leave a Comment July 21, 2016

Varroa mites found at second north Queensland site, prompting expanded search for pest

From: ABC News

by David Chen

Biosecurity Queensland is boosting its efforts to find and destroy Asian Honey bees in north Queensland after the discovery of more varroa mites.

Tests on an Asian honey bee hive found in the backyard of a house in the Townsville suburb of Annandale have confirmed the presence of the potentially destructive pest.

Another hive, which also had the mite, was found last month at the Port of Townsville.

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Leave a Comment July 20, 2016

Potato leafhoppers and mites on the rise in chestnut

From: Michigan State University | Extension

Potato leafhopper numbers are up and European red mites are visible in Michigan chestnut orchards

by Erin Lizotte, Michigan State University Extension

Potato leafhoppers in chestnuts

Like many plants, chestnuts are sensitive to the saliva of potato leafhoppers that is injected while feeding. Damage to leaf tissue can cause reduced photosynthesis, which can impact production, affect nut quality and damage the tree.

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. . . Neonicotinoids (e.g., Admire, Nuprid, Porvado and Assail) are longer lasting and narrow spectrum, making them a solid choice for management.

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Leave a Comment July 19, 2016

CATCH THE BUZZ – Australia Varroa find is jacobsoni, NOT destructor

From: Bee Culture | The Magazine of American Beekeeping

From Coloss
The four species of Varroa: a. V. jacobsoni dorsal view; b. V. jacobsoni ventral view; c. V. destructor dorsal view; d. V. destructor ventral view; e. V. rindereri; f. V. underwoodi. Photo: Denis Anderson. 

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Confirmation from the federal and Queensland governments and industry sources that the two mites in a feral Asian honey bee hive in Townsville, 830 miles north of Brisbane, were jacobsoni means Australia has again dodged the Varroa bullet.

Leave a Comment July 18, 2016

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