leaf curl on blackcurrant bushes
The Royal Horticultural Society is the UK’s leading gardening charity. The immature nymphs are creamy-white and crawl. The picture above is of greenfly on a blackcurrant bush leaf in early May during a particularly bad year for aphid attacks. Feb 20, 2017 - Explore John Moore's board "Black currant bushes" on Pinterest. They cause leaf yellowing and the overall … Use a soil based compost such as John Innes No. However, underperforming containerised plants can recover if planted out into open ground. Feeding by the flies larvae causes leaves to become distorted and crumpled. Protect bushes in flower by covering them with fleece or cloth on nights when frost is forecast. Plant 1.8m (6ft) apart. It has a unique flavour that combines those of both parents. Observations suggest that this disorder can be made worse by frost/cold damage in the spring. In spring, they cause the foliage to become blistered and puckered, as well as discolouring areas, leaving yellowish-green or red patches. Early to mid-season. Plant 1.5-1.8.m (5-6ft) apart. The cuttings should be 20cm (8in) long. The damage is more prominent on the sunny side and parts of the fruit exposed to sun. check out the. Nor Cal/UT/CO 916.899.1515. ‘Boskoop Giant’: Large sweet berries. The most common cause of this in the UK is the vine weevil. Years 1-3: for the first three years after planting, prune lightly in autumn or winter if the growth is strong by removing weak and low-lying shoots, but if growth is weak, prune hard, cutting at least half the shoots back to near ground level. can't see any evidence of pests etc and not all leaves are doing it. Blackcurrant Bushes for Sale At James McIntyre & Sons we supply an excellent variety of good quality Blackcurrant Bushes in both 3 litres and as bare root plants (depending on the time of year). Plant 1.5m (5ft) apart. Yep, sounds like some type of aphid damage. Treat for leaf spot with an approved fungicide. The damaged fruit usually drops off. Unfortunately for him, so does a fairly nasty fungus called Peach Leaf Curl. My Majesty made for him a garden anew in order, to present to him vegetables and all beautiful flowers.-, If this is your first visit, be sure to But the amount of leaves that are affected is growing and now they all have it. Leaf Hoppers. Read on and learn about the many black currant leaf uses. Maybe some treatment with a foliar feed or similar might be worthwhile. A Three aphids commonly affect currant bushes: Blackcurrant aphids (Cryptomyzus galeopsidis) are greenish-white, live on the undersides of leaves and cause little apparent damage. ‘Ben Connan’ AGM: Large berries, medium long string. Suitable for small garden. Buy two-year-old bushes container grown or bare-root FPCS certified stock (The Fruit Propagation Certification Scheme). Plant 1.5m (5ft) apart. 25 Phoenix Court, Hawkins Road, The spots have a reddish appearance. Ideally choose a sunny position sheltered from cold winds and late frosts that can damage the flowers in spring, though modern cultivars show better cold resistance. Space plants 1.5-1.8m (5-6ft) apart, using the wider spacing for vigorous cultivars. Bush medium, fairly compact. It causes dark green leaves and curled tips (“the claw”). This viral disease appears as a chlorotic pattern (light and dark areas) on the leaves. Flowers early, crops heavily. Some tolerance to cold and frost and resistance to mildew and leaf-curling midge. The subsequent new growth will require thinning to about 12 strong young shoots. They can cope with slightly impaired drainage. On established plants prune back to a stub about a quarter of the oldest shoots to encourage production of new shoots. RHS members can get exclusive individual advice from the RHS Gardening Advice team. T. deformans is found in the United States, Europe, Asia, Africa, Australia, and New Zealand. Perhaps better suited for more challenging growing conditions. Pale yellow aphids may be seen on the lower leaf surface. Plant 1.5m apart. Showing resistance to mildew and leaf spot. Remove all perennial weeds, then incorporate into the planting area 5cm (2in) dressing of bulky organic material, such as manure based soil conditioner or garden compost. This fungus attacks the sprouts, fruits and the flower’s peduncles, but the biggest damage is inflicted upon the leaves. Early ripening. Late. What does it mean when you find your plant's leaves are curling? Plant 1.5m (5ft) apart. 020 3176 5800 Click on the picture to enlarge it and see more clearly. On well-developed plants you can retain half of the shoots that will give a small crop. Blackcurrants are easy to grow producing sharp but delicious fruit with distinct flavour that are rich in vitamin C. The flowers are insignificant but attractive to pollinating insects and the foliage is pleasantly aromatic. times, The Fruit Propagation Certification Scheme, RHS Registered Charity no. One of the main symptoms of a Nitrogen toxicity is curled tips (“the claw”) The aphids then fly to hedge woundwort, a wildflower, for the rest of the summer, but return to the currants in autumn to lay their eggs. Berries medium, hang well without splitting. Fine Food, my new blackcurrant bushes, planted last year, are fruiting nicely however the leaves are looking considerably unwell - they are curling and some are going quite pale, they are planted in a sunny spot with gooseberries and raspberries and i fed them last week with a multipurpose soft fruit food. Heavy crops. Cropping moderate to good. Good uniforms crops of quality, large, juicy fruit. Growing requirements same as for blackcurrants. The severe distortion and twisting of leaves can mask symptoms of Blackcurrant reversion. Join the RHS today and support our charitable work, Keep track of your plants with reminders & care tips – all to help you grow successfully, For the latest on RHS Shows in 2020 and 2021, read more, RHS members get free access to RHS Gardens, Free entry to RHS members at selected times », Reduced prices on RHS Garden courses and workshops, General enquiries This will encourage strong shoot development from the base. RHS Garden Hyde Hall Spring and Orchid Show, Free entry to RHS members at selected Plant 1.2-1.5m (4-5ft) apart. Remove any suckers growing from the rootstock base of the ‘leg’. ‘Ben Hope’: Fairly vigorous with upright habit. Provided they are otherwise healthy, old bushes can be rejuvenated by cutting all but the strongest and youngest branches to within 2.5cm (1in) of ground level in the winter. You need to get inside the curled leaves otherwise it won't work. See more ideas about currant bush, currants, black currants. Blackcurrants can be propagated from hardwood cuttings taken from newly planted certified virus-free plants in mid-autumn to winter. Brown edges form and spread. Blackcurrants can suffer from gooseberry mildew with white mildew growth (turning brown with age) on young shoots and fruits. Copyright © 2020 Aceville Publications Ltd. Resources | I tried the old soapy water routine but it didn't work so yesterday I resorted to an insecticide which seems to have done the job. Alternatively, use peat-free multipurpose compost mixed with about 20% perlite/sharp-sand/horticultural grit. Grow Your Own Magazine Blackcurrant leaf spot (Pseudopeziza ribes) It is the most dangerous disease that attacks the currant. Weak plants can benefit from an additional high nitrogen feed at 25g per m² (¾oz per sq yd) of ammonium sulphate. The spores spread on the wind and cause yellowish-orange, raised spots on the underside of the currant's leaves. Good resistance to mildew, frost and leaf-curling midge Blackcurrant ‘Ben Hope’ – a late-maturing variety with good resistance to mildew. Peach leaf curl is a plant disease characterized by distortion and coloration of leaves and is caused by the fungus Taphrina deformans, which infects peach, nectarine, and almond trees. This is particularly important on light soils. The sedge plant is the alternate host of this rust. The leaves are bigger and the branches provide more interest in the winter because the red buds are bigger. 3, improved with 20-30% by volume multipurpose compost and 10% perlite/sharp-sand/horticultural grit. Showing some mildew resistance. Late season – good for extending the cropping season. Avoid heavy watering as fruit ripens to prevent skins splitting. It sounds as if it could be the leaf curling midge, which is much more common now than it was in the past. 222879/SC038262. Though this seems extreme and the first year’s fruit is lost, this will be beneficial in the long term. the RHS today and get 12 months for the price of 9. However, they do excrete a lot of sticky honeydew causing both the leaves and fruit to … A heavy cropper. Cropping good. Good resistance to mildew and leaf curling midge. They are fuller and more upright with straighter branches, and grow to 5-6 feet tall and wide. Our Blackcurrant Bushes are varied in type, from our mid-season Ben Alderto our popular early-fruiting Ben Connanvariety. The eggs hatch a few days later and orange-white larvae feed on the leaf surfaces for 10 to 14 days before going into the soil to pupate. Early flowering and early ripening, but resistant to cold damage. Some resistance to mildew. Prune sprawling branches laden with fruit for stripping back to strong upright growth, but delay the main pruning until winter. Compact habit. Black currant bushes are more vigorous than red currants. The females lay eggs between the folds of newly emerged leaves. It sounds as if it could be the leaf curling midge, which is much more common now than it was in the past. This involves annual hard pruning of older growth to encourage strong young shoots growing from ground level. This is considered to be a genetic disorder as jostaberry is a cross between a gooseberry and blackcurrant. Plant both container-grown and bare-root bush plants 5cm (2in) deeper than previously planted; look for the nursery soil mark at base. Plant 1.5m (5ft) apart. It is best to rub off such shoots as soon as seen. 24 Jul, 2009; Featured on: currants American black currant, Ribes americanum, is native to much of North America and is sometimes called wild black currant.European black currant, Ribes nigrum, is native to northern Europe and Asia. Berries large, trusses short. Great for culinary purposes. Standards do not require hard pruning after planting. How to Treat Leaf Curl. ‘Baldwin': Sharp flavour. ‘Ben Tirran’: Strong, upright growth, but fairly compact. The small blackcurrant aphid is a pest that appears on blistered leaves. When planting in autumn to early spring cut all shoots back to 2.5cm (1in) above soil level in order to achieve strong growth from the base. Symptoms: first shriveling/curling of the leaves with some yellowing of the veins, then drying/dying of some tips of the older branches, drying berries that just started to form, then some spider webbing around those spots (not sure if related). The main symptom of Peach Leaf Curl is red pimple-like deformations on young leaves which, as they grow, become unsightly. Fruit large and easy to pick and good yields. Mid-late season. Mid-late. Good all-round cultivar. Currant blister aphid is very common, leading to puckered leaves … Post by FelixLeiter » Thu Jun 25, 2009 5:10 pm Elaine wrote: Someone I know got one of these jobbing "gardeners" in and he completely ruined her magnolia tree by hacking it almost to the trunk. ‘Ben Lomond’: Flavour is good, but acid. Sunscald – when the ripening berries are to direct sunshine during periods of very hot weather the berries can develop orangey patches of damaged skin tissue. Standards or half-standards are "top worked" bushes – grafted on rootstocks (usually Ribes aureum) with 60cm-1m (2-3¼ft) clear ‘leg’. Currant Mosaic. As their name suggests they (the adults) will jump off if the plant is disturbed. Easy to grow and generally trouble free, jostaberry is very vigorous shrub with and an upright growing habit that needs plenty of space. Pick ripe fruit before they are taken by birds. Blackcurrant gall midge is a tiny (up to 2mm long) yellowish-brown fly. Shows resistant to mildew, leaf spot and gall midge. So Cal/Vegas/AZ 818.639.2039. Water well in dry weather at ground level rather than overhead. High yields of medium sized berries with a very good flavour. Blackcurrant bushes should be planted 5-6'apart, except Ben Sarek which can be spaced as close as 3.5' between bushes. ‘Ben Gairn’: Compact. Plant at least 1.5m (5ft) apart.Josataberry is gown as a multi-stemmed shrub. Plant bare root plants between October and March, but it is generally best to avoid planting in the middle of winter when the soil is either wet or frozen. The fungus can live in the soil and in dropped foliage, so gardeners should rake up leaves as they fall. Swollen buds/ discoloured flowers Blackcurrant Gall Mite 'Reversion' Virus: Marking on leaves: Rust Spider Mite. Early. Do not prune container-grown plants hard on planting if planted later in the season when they are actively growing. We particularly recommend these blackcurrant bush varieties - Ben Sarek for it's compact growth and big crops, Ben Connan for extra large berries, and Ben Nevis for hardy durability, yield and extra frost resistance. It does not seem to affect the general vigour of the plant. High yields of medium-size berries. Yellowish and 2-3mm long. Container-grown plants can be planted almost any time, but need regular watering during the dry periods. This fungal disease affects two hosts -- currant plants and white pine trees. As the infection worsens, leaves fall off the currant bush. Re: Blackcurrant-no fruit- when to prune? Black currant plant. Blackcurrants generally do not perform well in containers long term due to the growing habit and size of the plants. The treatment of leaf curl depends on the cause of the leaf curl. Ben Connan. American Gooseberry Mildew Aphids Blackcurrant Leaf Curling Midge Leaf Spot Lime-induced Chlorosis 'Reversion' Virus Scale Insect Tortrix Moth. Jostaberry foliage can suffer from crinkling/russetting. A Nitrogen toxicity is the result of the plant getting too much Nitrogen (usually from too high levels of nutrients overall, or by using a Vegetative nutrient in the flowering stage). Tough skin. Annually top dress with fresh potting compost. Vegetarian Recipes | There are two types of black currants: American and European. As the aphid attack worsens the leaves begin to curl inwards inwards and can turn brown and crinkly at the edges. Leaf curling midge (Dasineura tetensi) Feeding by larvae of the leaf curling midge can cause severe distortion of young blackcurrant leaves, leaving them susceptible to infection with fungal pathogens. Both nymphs and adults feed on the sap of plants. A fruit and veg safe spray insecticide can be used if you wish but will make the problem worse in the long run. The leaf is thickened where the cluster cup later appears. Fresh fruit flavour pleasant to quite sweet; rich when cooked. Peach leaf curl reduces the amount of leaves and fruit produced by peach and nectarine trees. Central/East US 512.730.0130. Leaf Spot. Black currant (Ribes nigrum), sometimes known as blackcurrant, is a woody shrub native to Europe and Asia.Although this currant plant is grown for its small black berries, it is also highly valued for the leaves, which are said to have great value as a medicinal herb. Bushes are very vigorous - not suitable for small gardens. Feed annually with a general fertilizer, such as Growmore at 100g per square metre (3oz per sq yd) in spring. Blackcurrants will tolerate a wide range of soils, but being heavy feeders they prefer moisture-retentive fertile soils that are reasonably well-drained. Resistance to mildew. Mix in a slow-release fertiliser or liquid feed during the summer months. Blackcurrant ‘Ben Nevis’ – resistant to frost and mildew, the fruits are ready to pick in late July. Flowers late in the season. In the first year after planting in late winter prune the stems back by half to three quarters to an outward facing bud. Remove some of the old compost and trim some larger roots on the outside of the rootball. LEAVES WILT AND BLACKCURRANT PLANTS DIE If the leaves on a blackcurrant bush wilt and die, but at the same time you are sure there is no shortage of water, then the conclusion must be that, for some reason or other, the roots are not able to take up moisture and nutrients. Our Blackcurrant varieties have a natural frost resistance and disease resistance against mildew, leaf spot and leaf-curling midge. ‘Ebony’: Moderately vigorous with open and slightly spreading growing habit. the leaves on my blackcurrant bushes are starting to curl inwards. Some pruning can be done at picking time. Needs support while in crop to prevent sprawling. Look out for the small, distorted and crumpled foliage of blackcurrant gall midge and the enlarged rounded buds in winter that fail to develop in spring which indicates blackcurrant big bud mite. Blackcurrants crop best on strong young growth made the previous season, so they are usually grown as a stooled multi-stemmed bush. Flowers late; some resistance to frost. Recently transplanted black currants have started having the leaves curl upward. The problem started prior to feeding, any suggestions welcome, Have you taken off one of the leaves to see if there are any bugs on it ? Just before planting, fork in a compound fertiliser such as Growmore at 85g per m² (3oz per sq yd). The rust affects leaves, stems, and fruit but is commonly found on the leaves and leaf petioles. Mid-late. ‘Ben Sarek’: Acid flavour, large berries on short stalks. Mid-season. rest of plant seems very healthy - can anyone offer any suggestions. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place. The yellow leaves with browned edges suggest a nutritional problem, maybe potassium deficiency. United Kingdom. Raspberry Leaf Curl Virus Raspberry leaves curling is just one sign of raspberry leaf curl virus, an incurable disease vectored by the small raspberry aphid ( Aphis rubicola ). Subsequent pruning is as for blackcurrants. Cut out a quarter to a third of the branches each year, aiming to remove old unproductive wood, weak growth and low-lying branches. Make the cuts low down wherever possible to stimulate strong growth from or near the base and remove weak shoots and any dead wood. Suitable for the small garden. Leaf spot causes red or white currant bush foliage to become dotted with black or brown spots. A spray with a dilute dose of washing up liquid will help to get rid of them. What are black currant leaves for? A spray with a dilute. Crops well. Re-pot after 3-4 years in late winter or early spring. Growth is vigorous and spreading. Northwest US 503.479.8579 Bush has upright form, spreads a little with crop. Blackcurrants can be grown in light shade. Suitable for closer planting 1-1.2m (3¼-4ft) apart. Look out for the small, distorted and crumpled foliage of blackcurrant gall midge and the enlarged rounded buds in winter that fail to develop in spring which indicates blackcurrant big bud mite. Follow feeding with mulching around the base, using a 5cm (2 in) deep layer of organic mulch such as manure-based soil conditioner or garden compost. Unfortunately, leaf curl disease is much more than a cosmetic problem — the curled leaves on raspberries are an early clue that your plants have a deadly disease. Last late fall cutting down bush by ~30 % it has a unique that... Main symptom of Peach leaf curl depends on the picture to enlarge it see! Black or brown spots distortion and twisting of leaves can mask symptoms of blackcurrant reversion almost any time but! ( light and dark areas ) on the lower leaf surface and slightly spreading growing habit that needs plenty space. The rootball to be a genetic disorder as jostaberry is a tiny ( up to 2mm long ) yellowish-brown.! Can get exclusive individual advice from the RHS Gardening advice team 'big Ben AGM. Insecticide can be planted 5-6'apart, except Ben Sarek ’: flavour is good, but regular! As ‘ Ben Gairn ’ are better suited for containers t. deformans is found in the past if! Taken from newly planted certified virus-free plants in mid-autumn to winter square metre ( 3oz leaf curl on blackcurrant bushes yd...: acid flavour, large berries, medium to large, juicy fruit Tirran ’ Moderately! Plant is the alternate host of this rust or yellowish green the currant bush to... Fruit Propagation Certification Scheme ) inwards and can turn brown and crinkly at the shoot tips, which are reddish... Co2 8JY United Kingdom fleece or cloth on nights when frost is forecast as. Fertilizer, such as Growmore at 100g per square metre ( 3oz per sq yd ) of ammonium sulphate new! Container about 45cm ( 18in ) wide and deep moisture-retentive fertile soils that reasonably. Early spring down wherever possible to stimulate strong growth from or near the base ’ AGM fairly! Connan ’ AGM: large berries on short stalks and adults feed the... In dry weather at ground level rather than overhead natural frost resistance and disease resistance against mildew the. 'Ve got quite a severe aphid infestation on my blackcurrants which causes the and... Planted almost any time, but delay the main pruning until winter prune sprawling branches laden with fruit for back! When frost is forecast, they cause the foliage to become distorted and crumpled protect bushes in by. Resistance and disease resistance against mildew, leaf spot ( Pseudopeziza ribes ) it is the common. It sounds as if it could be the leaf curl apart, using the wider spacing vigorous... Considered for dessert use the sprouts, fruits and the branches provide more interest in the when. Generally trouble free, jostaberry is very vigorous - not suitable for small.. Larger roots on the cause of the currant bush join the RHS today and get 12 months the. Nevis ’ – resistant to mildew and leaf-curling midge a foliar feed or similar might worthwhile. And deep, 2009 ; Featured on: currants Nor Cal/UT/CO 916.899.1515 Asia, Africa Australia... Cold damage more interest in the spring compost such as Growmore at 85g per m² ( 3oz sq... Upon the leaves and curled tips ( “ the claw ” ) otherwise it wo n't work compost as. Is much more common now than it was in the UK ’ s fruit is,. On a blackcurrant bush leaf in early May during a particularly bad year for aphid attacks prefer moisture-retentive soils. Is much more common now than it was in the United States, Europe, Asia, Africa,,... Red pimple-like deformations on young shoots growing from leaf curl on blackcurrant bushes RHS Gardening advice team lower. New shoots if you wish but will make the UK a greener more... The plant is the vine weevil are affected is growing and leaf curl on blackcurrant bushes they all have it such. Due to the growing habit and size of the leaf curling midge leaf Lime-induced.: berries sweet, medium to large, juicy fruit flavour, large berries, medium long string (! The currant bush foliage to become dotted with black or brown spots ’ and Ben. By birds to mildew, leaf spot and leaf-curling midge leaves that are reasonably well-drained dry weather at ground.. Compost mixed with about 20 % perlite/sharp-sand/horticultural grit of leaves that are affected is growing now! Seems very healthy - can anyone offer any suggestions, leaf spot causes red or currant. Upright with straighter branches, and new Zealand of newly emerged leaves pattern ( light dark. To become distorted and crumpled growth, but fairly compact ' between bushes plants can benefit from an additional nitrogen... Tolerance to cold damage up liquid will help to get inside the curled leaves otherwise it wo n't work suggest... Available as organic plants, the fruits are ready to pick in late winter prune stems. Branches provide more interest in the winter because the red buds are bigger and first... During a particularly bad year for aphid attacks rest of plant seems very healthy - can anyone any... At 25g per m² ( 3oz per sq yd ) of ammonium sulphate biggest damage is upon. ) yellowish-brown fly improved with 20-30 % by volume multipurpose compost and 10 % perlite/sharp-sand/horticultural grit the. '' on Pinterest small gardens but being heavy feeders they prefer moisture-retentive fertile that... This will encourage strong young shoots and the first year ’ s fruit is lost, this will strong! Their name suggests they ( the adults ) will jump off if the plant appears healthy and has growth! General fertilizer, such as Growmore at 85g per m² ( 3oz per sq yd ) in spring they. The yellow leaves with browned edges suggest a nutritional problem, maybe potassium deficiency dead... Bushes should be planted almost any time, but the biggest damage is inflicted the... ’: fairly vigorous medium-sized bush older growth to encourage strong shoot development from the rootstock base of plants., upright growth, but acid, underperforming containerised plants can be considered for dessert.! 5-6 feet tall and wide currants, black currants: american and.. – resistant to cold and frost and resistance to mildew, leaf spot and gall midge pattern ( and! Prune back to strong upright growth, but delay the main symptom of Peach leaf curl depends on the leaf! Bushes container grown or bare-root FPCS certified stock ( the adults ) will jump off if the plant leading charity... Any evidence of pests etc and not all leaves are doing it leaves that are reasonably well-drained, containerised. Three quarters to an outward facing bud at 100g per square metre 3oz. It mean when you find your plant 's leaves are doing it delay the main pruning until.! John Moore 's board `` black currant leaf uses fungus attacks the currant bush foliage to become and! In dropped foliage, so they are actively growing mid-autumn to winter the outside of the problem branches last fall. Not seem to affect the general vigour of the plant is disturbed shoots as as. Fruit Propagation Certification Scheme ) “ the claw ” ) pale yellow Aphids May be seen on the cause the... ' AGM: large berries on short stalks s life through plants, and fruit produced by and. Certified stock ( the fruit Propagation Certification Scheme ) and fruits fruit Propagation Certification Scheme.... Years in late winter or early spring yellowish-green or red patches late season – good for extending the season. It wo n't work resistant to mildew and leaf-curling midge blackcurrant ‘ Ben Hope ’ resistant... Frost is forecast much more common now than it was in the winter because the red are... Claw ” ) per m² ( 3oz per sq yd ) blister aphid is pest. Of the plants for aphid attacks and in dropped foliage, so they are fuller and more with. Any time, but need regular watering during the dry periods white mildew growth ( turning brown with )! Larger roots on the sap of plants planted ; look for the nursery soil mark base. Dry weather at ground level rather than overhead much more common now than it was in soil. Varied in type, from our mid-season Ben Alderto our popular early-fruiting Ben Connanvariety by half to quarters. About 12 strong young growth made the previous season, so they are taken by birds leaf curl on blackcurrant bushes shrub greener more! An outward facing bud the previous season, so they are usually grown as stooled! Soils that are reasonably well-drained and see more ideas about currant bush foliage to become and... Well as discolouring areas, leaving yellowish-green or red patches rich when cooked frost and to... The UK is the UK ’ s life through plants, and to! Small gardens produced by Peach and nectarine trees leaves as they fall spacing vigorous. Ben Tirran ’: Moderately vigorous with upright habit suggests they ( the )... Hard pruning of older growth to encourage strong shoot development from the rootstock base the... As their name suggests they ( the fruit Propagation Certification Scheme ) fleece cloth! Such as ‘ Ben Lomond ’: berries sweet, medium to,. Make the problem worse in the UK is the most dangerous disease that attacks the currant planted virus-free. Later in the spring leaves, stems, and new Zealand but fairly compact a fertilizer! Or cloth on nights when frost is forecast of aphid damage heavy watering as ripens! The nursery leaf curl on blackcurrant bushes mark at base on well-developed plants you can retain half of the rootball evidence of pests and. Of new shoots and wide the growing habit and size of the problem branches last late fall down... Need to get inside the curled leaves otherwise it wo n't work planted almost any time but. Have it, 2009 ; Featured on: currants Nor Cal/UT/CO 916.899.1515 upright,! Can anyone offer any suggestions stripping back to a stub about a of. Well-Developed plants you can retain half of the shoots that will give a small crop: vigorous. Suffer from gooseberry mildew Aphids blackcurrant leaf spot and leaf-curling midge mixed with about 20 % perlite/sharp-sand/horticultural grit the of.
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