What bug is eating my viburnum?

What bug is eating my viburnum?

viburnum leaf beetle
If you’re noticing lots of holes in the leaves of your viburnums from late spring through summer, chances are good that you have viburnum leaf beetle (VLB). Native to Europe, VLB was accidentally introduced to North America sometime in the last century.

What is attacking my viburnum?

With their attractive fruit, flowers, and fall color, viburnums are popular shrubs in Indiana landscapes. The arrival of the viburnum leaf beetle, Pyrrhalta viburni, in the US threatens the health of viburnums.

How do you get rid of viburnum beetles?

Research does suggest that soil application of a systemic insecticide such as imidacloprid is highly effective against viburnum leaf beetle. (Systemic insecticides are taken up by the plant and transported to the leaves where the beetles feed.)

What do you spray on viburnum?

Alternatively, you can spray the larvae from mid-April to early May with any insecticide recommended for a broad spectrum of plant pests. These could include Westland Plant Rescue Fruit & Vegetable Bug Killer, Scotts Bug Clear Gun for Fruit & Veg (organic) or Py Spray Garden Insect Killer (organic).

How do you get rid of thrips on viburnum?

To control thrips, spray pests thoroughly with Yates Nature’s Way Vegie & Herb Spray or Yates Nature’s Way Vegie & Herb Spray Concentrate. This is a contact insecticide, so you will need to ensure the spray thoroughly contacts the thrips for the product to be effective.

What insect looks like viburnum?

Viburnum beetle is a leaf beetle (family Chrysomelidae) with about 250 species found in Britain. They all feed on plants, most are do not have a noticeable effect on garden plants, many are colourful and many species are local or rare. Viburnum beetle feeds on viburnums.

What insecticide kills viburnum beetle UK?

A systemic insecticide (BugClear Ultra) – which also kills on contact – is absorbed by the leaves and moves all around inside the plant, so can kill the larvae and adults as soon as they start to eat the foliage.

How do you get rid of viburnum leaf beetles naturally?

Prune out and burn all infected twigs that you find. If, even after pruning out the egg sites, you still have larvae, apply registered insecticides in the spring when larvae are small. It’s easier to kill larvae, which cannot fly away, than adults that can.

How do you prevent viburnum leaf beetles?

Prune infected leaves and twigs – a viburnum beetle attack can leave the plant looking lacey and denuded, but these plants are generally hardy and can often withstand it. Remove any infested foliage, including whole twigs and branches if necessary, to eliminate the threat and give the plant a chance to recover.

What is thrips look like?

Adult thrips are slender and tiny, at 1 / 50- to 1 / 25-inches long. The nymphs look like even smaller adults, though they tend to be light green or yellow rather than darker colors. Their wings are also not fully developed, and they sometimes have red eyes. Thrips appear to be tiny dark slivers on your plants.

How do I know if my plant has thrips?

Signs your plant might have thrips

1. Tiny, rice-like flecks on your plant that are barely noticeable to the naked eye.
2. Mature plant growth may become deformed.
3. Foliage has tiny, discolored spots (or stippling) from thrips feeding on the plant.
4. Feeding damage can also cause leaves to develop a silvery appearance.

What Does a viburnum leaf beetle look like?

An adult viburnum leaf beetle is between 4.5 and 6.5 mm long. The body is gold-gray, but the head, wing cover and shoulders are brown. Larvae are yellow or green and twice as long as the adults. Both adults and larvae feed only on leaves of viburnum species.

What insects are harmful to Viburnum leaves?

Other insects affecting viburnums include: Weevils – Weevils chew on the edges of leaves. While they’re not usually dangerous, the damage isn’t pretty.

How do I get rid of Viburnum leaf beetles?

Only spray infested viburnum plants and try to avoid drift onto other plants to preserve pollinators and other beneficial insects in the yard and garden. More detailed information on viburnum leaf beetle is available at the Cornell University Viburnum Leaf Beetle website.

What causes black spots on Viburnum leaves?

The disease anthracnose (caused by Colletotrichum species) appears as black, sunken lesions. Leaf spots and anthracnose are fairly common on viburnum foliage, but these foliar diseases are not usually serious. Prevention & Control: Many foliar problems can be prevented by keeping leaves as dry as possible.

What are the symptoms of root rot in viburnums?

Most often, this disease is found on trees and shrubs, such as oak, pine, rhododendron, and dogwood, but hundreds of plant species, including viburnums, are susceptible. Typically, the symptoms of this root rot occur over the whole plant. Above-ground parts of the shrub generally appear stunted and yellowed and leaves may drop.