Vinca , also know as periwinkle or Catharanthus , is a hardy garden flower that produces pretty pink or bloodless flowers . It is a perennial in hot climates but most gardeners turn it as an yearbook . Deer and rabbits do not wish to eat genus Vinca and the plant is n’t incommode by too many worm or disease , but there are a few blighter gardeners should depend out for when growing this flower .
Aphids
aphid are minuscule , diffused insect that are most often green or white but may also be chocolate-brown , crimson or grim . aphid fertilise on the leaves of a vinca , but the insects are too modest to bring forth visible holes in the leaf . rather , look for leaves that are wave , warped or yellow . Aphids also pull up stakes behind a sticky residue that may bet like black soot and may also transfer disease to the plant which can damage the leave or stunt ontogenesis . good insects such as lady beetles feed on aphids , and you may purchase lady beetles to release into your garden at some greenhouse or through mail - order garden supplying stores . For modest aphid infestations , you may be able-bodied to just knock them off the vinca plant with a secure stream of water .
Scales
While scales are in reality insects , to the naked human eye they just look like a small bump on a foliage or base . Depending on the species , they may be either soft - bodied or protected by a voiceless shell called armor . Small numbers of scales do n’t do much damage to vinca plants , but a major infestation may countermine the plant and cause the parting to droop , turn yellow or descend off . Lady beetles , lacewings and parasitic wasps are all natural enemies of scales and boost their mien in your garden will help fight a plate infestation on your vinca .
Whiteflies
Like aphid , whiteflies are small-scale , white insects that flow on parting and leave behind viscid residue . Unlike aphid , though , whiteflies can be difficult to do . polish off whitefly by manus or with a small vacuum will help , and beneficial lacewings will also eat whitefly . Most insecticides are ineffectual against whiteflies , but there are whiteflies snare which may lure the pests forth from your vinca works . Whiteflies often congregate on the undersides of leaves .
Spider Mites
Spider speck are almost invisible and it takes a lot of them to bring down serious damage , but they can stimulate the leaves of genus Vinca to discolor and drop off . Spider mites tend to gravitate toward drought - accent plant , so keeping your genus Vinca thoroughly water will fight off spider mites .
Weevils
Both grownup and larvae weevil feed on the leaves of vinca plant . grown weevil are brown or gray and have a distinct snout ; larvae are immature or white . The best way to control weevils is to simply pick them off the vinca plant life and drip them in a jar of rubbing alcohol to obliterate them .
