How do you get rid of lace bugs on azaleas?
For adult lace bugs, recommended spray insecticides include acephate, bifenthrin, lambda cyhalothrin, malathion, and cyfluthrin. Acephate may give the best control, as this insecticide is a foliar systemic that will move through the leaves to kill the lace bugs on the undersides of the leaves.
What time of year do you treat lace bugs?
In general, treatments for lace bugs are most effective when started during spring and early summer, when the season’s first generation of nymphs are developing. Treatment should continue through summer to combat subsequent generations (there may be three or four total, depending on the area).
Can I put Sevin dust on azaleas?
Lace bugs are doing serious injury to azaleas and Pieris japonica (andromeda) in some gardens in the Washington area. It is a good idea to inspect your plants and if they are infested, specialists recommend spraying them with Sevin.
Are lace bugs seasonal?
Lace bugs have two generations per growing season in Minnesota. They live through the winter, as adults on or near their host plants. They can be found in bark crevices and under leaves and other debris on the ground next to these plants. In the spring, adults fly to plants and feed on newly-expanding leaves.
What are lace bugs on azaleas?
Whitney Cranshaw, Colorado State University, www.forestryimages.org Azalea lace bugs can be a very destructive pest in home landscapes. Lace bugs feed with piercing-sucking mouthparts during both the nymph and adult life stages. The resulting damage appears as a grayish cast on the azalea’s foliage.
How to get rid of Azalea insects?
For organic control of these azalea insects, you can try several methods. The first method to try is to spray the plant down with a sprayer on the hose. This can knock the pests of the plant and disorient them enough to prevent re-infestation.
What do infested azalea leaves look like?
Infested leaves have tiny yellow spots on the top surface and are discolored with dark, varnish-like excrement and old insect parts on the underside. Azalea plants begin to look unhealthy as insect numbers increase through spring and summer. Azalea lace bugs spend winter as eggs on the underside of azalea leaves.
What are the natural enemies of lace bugs?
Several natural enemies, including parasitic wasps, predatory assassin bugs, lacewing larvae, lady beetles, jumping spiders, pirate bugs, and mites attack lace bugs. Avoid using broad-spectrum insecticides and plant native perennials to attract beneficial insects into the landscape naturally. For more information, see Attracting Beneficial Insects.