Becauseprivet(Ligustrum spp . ) shrubs do n’t listen trim and pruning , they ’ve traditionally been used as hedge plants . These evergreen , semi - evergreen or deciduous shrubs mature in U.S. Department of Agriculture plant hardiness zones 3 through 10 , depending on the metal money . Examples include amur privet ( Ligustrum amurense ) , which grow up to 15 foot tall and 10 feet wide and develop in USDA zones 4 through 7 , and 10 - metrical foot - tall and wide common privet ( Ligustrum vulgare ) , which grow in USDA zones 5 through 8 . Considered invasive in some areas , privet hedging choose moist , well - drain dirt in full sunlight or partial tint . A few job can cause privet leaves to curl .
Sap-Sucking Pests
Step 1
Tiny pests , including aphid , scale leaf worm and whiteflies , can have a big wallop on privet hedge in spring and summertime . Often notice on the bottom of leave of absence , these bug take up the juice from the plant and cause leaf curl and wilting . Privet mites may cause scrubby growing and leaf curl in California privet ( Ligustrum ovalifolium ) , which grows in USDA zones 7 through 10 . speck often attack the tender , new growth on privet hedges .
Pest Control
you may remove a light plague of aphids , whiteflies , scales or hint with a substantial spray of water , or spray heavily infested privet hedges with insecticidal soap . Dilute 2 1/2 tablespoons of insecticidal soap in 1 gallon of water supply and spray the entire plant , including the undersides of leaves . you could apply it again after seven to 10 days . If you are meaning or breast feeding , have someone else apply pesticides , include insecticidal max . Keep pesticides out of the reach of children .
Diseases
combat-ready in the spring in deciduous privet and all year in evergreen varieties , anthracnose fungi spread in splashing piddle and attack twigs and leave . This disease causes curled , brown or malformed leaf and leaf drop , in particular in young privet leaves . Verticillium wilt fungus attacks privet roots and interferes with water uptake , resulting in curled or wilted leaves . Privet leave may suddenly turn brown or icteric and sink off the hedge . The fungi can stay in the grunge for years after you remove an infested plant .
Disease Control
you’re able to found anthracnose - repellent privet coinage , let in amur privet . To prevent the spread of anthracnose , rake and dispose of fall leaves in the fall . implant the shrubs 2 to 4 feet apart to allow enough air circulation . Prune and ruin verticillium - infected leg , and dip instrument in a solution of 1 part rubbing alcohol and 1 part water supply between cuts . Keep minor and pet off from sharp pruning tools and antimicrobial . If the privet shrub has die , remove the entire bush with the roots entire . Do not implant privet hedging where verticillium - infect plants have produce .
Other Causes
If your privet hedges have curled leaves in hot , dry weather , check that they are getting enough water . vernal flora are particularly sensitive to water supply focus . Too much water or badly drain soil can cause curled leaves because the root and plant tissue paper die and can not send water to the leaves . Magnesium inadequacy can induce leaf curl in foliage plants such as privet hedges . To treat this deficiency , water the soil twice a year with 1 teaspoon of Epsom salts dilute in 1 congius of piss , advocate North Carolina State Cooperative Extension .
References
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