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General Tree Health and Care
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Pests and Diseases
Pests and diseases in trees and plants of other varieties.
The Elm Leaf Beetle
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Elm leaf beetle lifecycle
Adult elm leaf beetles, approximately the size of a large grain of rice. Two to three generations or more of beetles can occur per year. was first identified in Australia in 1989.
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Adult elm leaf beetle
Adult elm leaf beetles, approximately the size of a large grain of rice was first identified in Australia in 1989.
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Beetle Damaged Trees
Beetles can cause major leaf damage and serious overall decline in trees.
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Factsheet
Read and download our factsheets on pests, diseases and treatment methods
- Tree Injection Trials on Giant Sequoia The main emphasis of these trials is on long term systemic control using chemistries that have a broad spectrum of activity.
- About Elm Leaf Beetles Lifecycle of the elm leaf beetle and treatment methods
- Moreton Bay Fig Psyllid Treatments Moreton Bay Fig Psyllid mycopsylla fici can cause significant damage and defoliation primarily in Moreton Bay Figs and less so in Port Jackson Fig
- Monterey Pine Aphid It is now present in all areas across Australia where pine trees are grown
- Ash Whitefly A small white sap sucking insect, causes leaf damage in Golden and Claret Ash trees.
- Ema-Ject® - Tree Injectable Emamectin Benzoate
- Cypress Canker Cypress canker is a serious fungal disease that affects certain coniferous species
- Oak Aphid and Powdery Mildew Oak aphids are small yellow elliptical insects that congregate on the leaf underside.