Malpighamobosis. Mite infection Flashcards

1
Q

what bees does acarapiosis apium affect

A

adult honey bees

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2
Q

what is AA caused by

A

acarapis woodi - tracheal mite

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3
Q

female mites of AA

A

transfer to young bees which are less than 4 days old especially bees less than 24hrs old

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4
Q

what does AA infest

A

mainly first pair of thoracic spiracles

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5
Q

life cycle of AA

A

incomplete metamorphosis

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6
Q

when is AA not spread

A

during winter or via honey comb or flowers

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7
Q

when do females of AA lay eggs

A

after 3-4 days

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8
Q

when does the first male of AA appear

A

11-12 days

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9
Q

when do females of AA leave the trachea

A

after mating

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10
Q

symptoms of AA

A

wings are disjointed aka K wing

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11
Q

diagnosis of AA

A

detect mites in trachea - trachea will be stained dark

ELISA to confirm

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12
Q

treatment of AA

A

menthol vapour

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13
Q

one of the most serious parasites of bees

A

varrosis - devastating for apis mellifera

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14
Q

most widespread type of varroosis

A

korean haplotype

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15
Q

adult males of varroosis

A

never found outside brood cells - male develops first breeds and dies

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16
Q

what is the varroosis mite a vector of

A

mite virus syndrome

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17
Q

what bees does varroosis affect

A

adult bees by piercing the thin abdominal intersegment membrane

18
Q

life cycle of varroa mite

A

incomplete metamorphosis

19
Q

where do varroa mites breed

A

in capped cells only

20
Q

when do adult females of varroa invade cells

A

invade cells of workers and drone brood just prior to cell capping - 11.6 times more likely to infect drone cells

21
Q

how many varroa mites can develop from one cell

A

usually 2 but in drone cells up to 4 mites

22
Q

diagnosis of varroa

A

shake dead bees in liquid with a rotaru shaker for 30 minutes with different liquids

23
Q

treatment of varroae

A

drugs with akaricid effects
e.g. amitraz, brom proilat, cymazol, coumaphos, fluvalinat, flumethrin, akirinatrin

24
Q

other forms of treatment for varroa

A

natural substances like formic or oxalic acid and essential oils with thymol

25
pathogen of asian mites
tropilaelaps clareae and mercedesae notifiable to OIE
26
reproduction of TC
in sealed brood cells
27
characteristics of nosemosis
in adult bees affecting queen workers and drones new infection doesnt affect larvae
28
nosema apid, ceranae type of pathogen
obligate IC pathogen
29
infective stage of nosema
spores - 30-50 millions spores per bees
30
spores of nosema resistance
very resistant to environmental degradation and retain viability for over a year
31
pathogenesis of nosema
young nurse workers ingest spores - spores enter posterior part of ventriculus and mid gut, multiply in cytoplasm asexually spores form after 5 days at 30 degrees and shed in feces of bees
32
Nosema apis seasonality
in autumn and winter colder climates when brood amount decreases
33
signs of nosema apis
abdomen will be swollen and dysentery signs present
34
seriously affected worker bees of nosema apis
wont be flying but may crawl trembling shorter lifespan
35
feces of bees infected with nosema apis
feces on combs during winter will be dark and scaly in cells
36
queens infected with nosema apis
stop egg laying and die within 1-2 weeks
37
workers infected with nosema apis
start forage sooner
38
decline of nosema apis
spontaneous in summer
39
nosema ceranae similarity to apis
not similar to apis - no signs of crawling or dysentery, will have no specific symptoms
40
diagnosis of nosema ceranae
microscopic exam - methylene blue stain
41
signs of n.ceranae in heavily infected bees
white ventriculus, will be soft and swollen obscuring the constrictions
42
chemotherapeutic method of n.ceranae fumagillin 25g/ liter of sugar syrup - better during stress like winter/rainy seasons disinfect heavily infected colonies