Reproduction of Varroa Jacobsoni During Successive Brood Cycles of the Honeybee

Ruijter, A. de

doi:10.1051/apido:19870403

Cited by 73 publications

(59 citation statements)

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“…A wire gauze prevented the bees from removing the mites from the sheet. Ruijter, 1987 (Liebig, 1994;Boot et al, 1995;Mar-tin, unpublished data) that suggested a strong correlation between levels of falling mites and the emergence of honeybee brood. The level of mite drop from naturally infested worker cells was nearly twice as high as that from the drone cells, despite drone cells being more attractive to the mite (Fuchs, 1990 (Martin, 1994) (Nation et al, 1992).…”

Section: Methodsmentioning

confidence: 99%

Mortality of Varroa jacobsoni Oudemans during or soon after the emergence of worker and drone honeybees Apis mellifera L

Lobb

Martin

1997

Apidologie

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Summary — In a naturally infested colony a strong correlation between levels of falling mites and the emergence of honeybee brood was found. When comparing the number of mites falling between emerging worker and drone brood with known infestation levels, the mite fall was 2-3 times higher from worker than from drone cells. It was estimated that around half of the falling mites originate from mites that died within the sealed cell with the other half dying shortly after bee emergence. About 50% of the fallen mites were still alive and found to be able to reproduce when artificially introduced into sealed brood cells. The implications of mite mortality associated with brood emergence on the mite population dynamics and of using numbers of falling mites as a monitoring tool are discussed.

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Section: Methodsmentioning

confidence: 99%

Mortality of Varroa jacobsoni Oudemans during or soon after the emergence of worker and drone honeybees Apis mellifera L

Lobb

Martin

1997

Apidologie

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“…The cell caps of the control group were opened and closed in the same way, but no mites were placed inside. For reidentification the position of the cells was marked on a clear plastic sheet that could be readjusted to the same position (De Ruijter, 1987 (Jones and Rothenbuhler, 1964;Rothenbuhler, 1964 In 2 of 3 cells that were uncapped and containing live pupae after 6 days, several mites were found hiding at the cell bottom under the pupae. In one of these 2 cells we found 3 adult V jacobsoni, one egg, and 2 female deutonymphs.…”

Section: Methodsmentioning

confidence: 99%

Response of Apis cerana Fabr towards brood infested with Varroa jacobsoni Oud and infestation rate of colonies in Thailand

Rath¹,

Drescher

1990

Apidologie

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Summary — Apis cerana F, colonies responded with effective removal behavior towards sealed worker brood that was artificially infested with vital of dead Varroa jacobsoni Oud. The bees removed artificially infested drone brood to a very low extent. A cerana workers showed a differential hygienic behavior towards freeze killed sealed brood, consisting of fast removal of dead worker and slow removal of dead drone brood. The V jacobsoni populations infesting A cerana colonies in South Thailand were determined by acaricide treatment. A maximum infestation with 798 mites was ascertained.Apis cerana / Varroa-resistance / hygienic behavior / natural infestation / Thailand

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“…These mites may be callow or have reproduced once or several times [26]. In addition these mites may have a different origin owing to transfer by drifting of drones or inexperienced forager bees [35,54], or by robber bees [53].…”

Section: Does Invasion and Reproduction Depend On The History Of The mentioning

confidence: 99%

Invasion behaviour of Varroa jacobsoni Oud.: from bees into brood cells

1999

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-Varroa jacobsoni mites may invade worker or drone brood cells when worker bees bring them in close contact with these cells. The attractive period of drone brood cells is two to three times longer than that of worker brood cells. The attractiveness of brood cells is related to the distance between the larva and the cell rim and the age of the larva. The moment of invasion of the mite into a brood cell is not related to the duration of its stay on adult bees. The fraction of the phoretic mites that invade brood cells is determined by the ratio of the number of suitable brood cells and the size of the colony. The distribution of mites over worker and drone brood in a colony is determined by the specific rates of invasion and the numbers of both brood cell types. Knowledge of mite invasion behaviour has led to effective biotechnical control methods. © Inra/DIB/AGIB/Elsevier, Paris Apis mellifera / Varroa jacobsoni / invasion / brood cell type / biotechnical control

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Reproduction of Varroa Jacobsoni During Successive Brood Cycles of the Honeybee

Cited by 73 publications

References 1 publication

Mortality of Varroa jacobsoni Oudemans during or soon after the emergence of worker and drone honeybees Apis mellifera L

Mortality of Varroa jacobsoni Oudemans during or soon after the emergence of worker and drone honeybees Apis mellifera L

Response of Apis cerana Fabr towards brood infested with Varroa jacobsoni Oud and infestation rate of colonies in Thailand

Invasion behaviour of Varroa jacobsoni Oud.: from bees into brood cells

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