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Ribes (/ ˈ r aɪ b iː z /) [5] is a genus of about 200 known species of flowering plants, most of them native to the temperate regions of the Northern Hemisphere. [2] The species may be known as various kinds of currants, such as redcurrants, blackcurrants, and whitecurrants, or as gooseberries, and some are cultivated for their edible fruit or as ornamental plants.
The blackcurrant leaf midge can cause browning, crimping and distortion of leaves at the tips of shoots but it is seldom a serious problem. The blackcurrant sawfly (Nematus ribesii) lays its eggs on the underside of the leaves and the voracious larvae work their way along the shoots, stripping off leaf after leaf. In a serious attack, the bush ...
The mites suck sap from the buds and while they are doing so, can transmit the virus that causes blackcurrant reversion disease. [1] The mites are 0.25 mm (0.01 in) long. When mature they move out of the buds onto the twigs where they make their way to uninfested buds or may feed on the foliage later in the season causing distortion of the leaves.
The species is divided into two varieties, [4] each known simultaneously as northern black currants, and by their own individual common, and scientific names; the type variety, R. h. var. hudsonianum, is also known as the Hudson Bay currant; [4] [7] whereas R. h. var. petiolare is also known as the western black currant.
Ribes laxiflorum is a species of currant known by the common names trailing black currant, and spreading currant. [2] It is native to western North America. Description
Ribes americanum is a North American species of flowering plant in the gooseberry family known as wild black currant, [1] [3] [4] [5] American black currant, [6] and eastern black currant. [7] It is widespread in much of Canada (from Alberta to Nova Scotia ) and the northern United States (from New England to Washington , with additional ...
There was a demand to have gooseberry-type fruits on thornless plants, and the first successful attempt to cross blackcurrant (R. nigrum) with European gooseberry (R. uva-crispa) was carried out by William Culverwell in Yorkshire, England in 1880. [3] This hybrid was termed Ribes × culverwellii and was nearly sterile. [4]
The shrub Ribes lacustre is known by the common names prickly currant, bristly black currant, [3] black swamp gooseberry, and black gooseberry. [4] It is widely distributed in North America. Description