14. non infectious disorders and control of bee diseases Flashcards
neglected brood is caused by
sudden shortage of nurse bees
what leads to chilled brood
happens in early spring when broods nests expand rapidly and theres a shortage of adult bees - on fringes of the brood area
larvae of a chilled brood
yellowish
tinged with black on segmental margins
what is starved brood restricted to
larval stages - affected larvae not restricted to periphery of brood combs and larvae will crawl out of the brood cells in search for food
what causes overheating
sudden loss of worker bees to cool the colony down
how can bees overheat
without proper ventilation of access to water
newly emerged bee during overheating
may be wingless
worker bees during overheating
wet and wings appear to be hazy
some cases abnormally large amount of dead bees at hive entrance
when does genetic lethality occur
during all stages of development
Directions for sending diseases brood and adult honey bees for diagnosis
sample should be loosely wrapped in a paper bag/towel and newspaper
describe problem and give name and address
sample of adult honey bees
atleast 100 bees
what bees are not okay for sampling
decayed bees
samples of brood
should be about 10x10 - no honey should be present
viral diseases treatment
no known direct treatment
when is black queen cell virus, bee virus Y and filamentous virus suppressed
indirectly by control of nosema apis
