Definition of blackfly in English:
blackfly
nounPlural blackflies ˈblakflʌɪ
1A black or dark green aphid which is a common pest of crops and gardens.
Several species in the family Aphididae, in particular Aphis fabae
Example sentencesExamples
- One or two other insidious pests have crept almost unnoticed into my garden this month including blackfly, which have infested the tall flowering stems of the cardoons.
- Most common are greenfly on roses and blackfly on nasturtiums and broad beans, but dozens of their relations also attack other plants.
- But the sunny weather has suited greenfly and blackfly, while mildew has affected several plants.
- Hover flies and lace wings control aphids and blackfly.
- And try to avoid ‘revenge spraying’ - which is what happens when blackfly, for example, have ruined your roses.
2A small black fly, the female of which sucks blood and can transmit a number of serious human and animal diseases.
Family Simuliidae: Simulium and other genera
Example sentencesExamples
- Similarly, the device mimics a human by emitting a plume of carbon dioxide, heat and moisture, and an attractant, octenol, which targets mosquitoes, biting midges, black flies and sandflies.
- When you're not underwater, coat yourself in deet or be eaten alive by bloodthirsty blackflies.
- Similarly, as soon as I crossed the doorstep, the June hordes of bloodsucking blackflies and horseflies left off their hot pursuit.
- In fact, in their effort to discourage the world's mosquitoes, blackflies, sand flies and ticks, consumers spend an estimated $200 million annually on sprays, liquids, lotions, candles and other anti-insect concoctions.
- Other blood feeding insects or mites that may occasionally be pests of poultry include: chigger mites, biting midges, and black flies (turkey gnats).