Rose Leafhopper , Rose Hopper
Rose Leafhoppers are small true bugs (Order: Hemiptera). Like many leafhoppers, they specialise in feeding on one type of plant, and for this bug that's rose. They suck the sap from plants using modified mouthpieces, which resemble needle-like straws. These insects cause mottling on the leaves of roses, which is an indirect result of their feeding behaviour. Plants that are in hot, dry climates tend to be worse affected.
Leafhoppers are a key resource for predatory insects, like ladybirds!
These insects are capable of spreading disease when they feed on plants through their needle-like mouthparts.
These insects are relatively small for leafhoppers (3.5-4mm). The wings are held flat against the body which is a pale green. The tips of the wing fade to white. Leafhoppers are also called froghoppers because their faces seem frog-like. Find adults around the leaves of rose plants. They may jump off when disturbed. The immature stages, more widely known as nymphs, are smaller and creamy white. These can be found beneath the leaves of plants. Tip: Distinguish froghoppers (Superfamily: Cercopoidea) from leafhoppers (Family: Cicadellidae) using the hind legs. A leafhopper will have 1 to 3 rows of fine, thin, spines, whereas; a froghopper possesses 2 wide and thick spines on the outer edge of the hindleg.
Pale, mottling may be evident over the leaves of infested rose plants. Heavy infestations may result in leaf browning and premature falling.
Europe, Asia and North America.
In most cases, rose plants can tolerate the damage that these insects inflict, even when plants are looking worse for wear. Leafhoppers are a food resource for spiders, parasitic wasps and small insect-eating birds, so attracting these to your garden will limit the damage caused by these bugs. This can be done by planting pollinator-friendly flowers, incorporating some form of bug-friendly habitat, or by installing birdboxes and birdbaths. Alternatively, insects may be picked off, squashed or fed to the birds.
If infestations are reasonable, all biological forms of control should be attempted before resorting to chemical sprays. If a chemical treatment is sought, please check with your local regulating body for guidance on active ingredients and their authorisation for use. Plants that are in flower should never be sprayed due to the dangers they pose to pollinators.