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Macrosiphum hellebori, commonly known as 'Hellebore aphid' or 'greenfly', is a sap-feeding aphid that infests the flowers and foliage of hellebore plants. The whitish-green aphids are about 2–4 millimetres ( 3 ⁄ 32 – 5 ⁄ 32 inch) long and form dense colonies on hellebores, coating them with a honeydew that can lead to the growth of ...
Aphis is a genus of insects in the family Aphididae containing at least 600 species of aphids. [1] It includes many notorious agricultural pests , such as the soybean aphid Aphis glycines . Many species of Aphis , such as A. coreopsidis and A. fabae , are myrmecophiles , forming close associations with ants .
Hoverfly depositing an egg on an Epipactis helleborine leaf as a predatory response to aphids which are farmed by ants. This species of orchid is pollinated by several species of Hymenoptera, particularly the common wasp, but also other species in the genera Vespula and Dolichovespula. Flowers release a sweet nectar to attract the wasps, which ...
Aphids are repelled by strongly aromatic plants such as lavender, marigolds, garlic and mint. Plant these among your more vulnerable plants. Using trap plants is a different approach.
Veratrum viride, known as Indian poke, corn-lily, Indian hellebore, false hellebore, green false hellebore, [2] or giant false-helleborine, [3] is a species of Veratrum native to eastern and western (but not central) North America. [4] [2] [5] It is extremely toxic, and is considered a pest plant by farmers with livestock.
Thus, aphids show very complex and rapidly changing within-year dynamics, with each clone going through several generations during the vegetative season and being made up of many individuals, which can be widely scattered in space. The survival of the eggs and/or overwintering aphids determines the numbers of aphids present the following spring ...