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Eucalyptus Longhorned Borers

Recommended Steps to Control Eucalyptus Long-horned Borers

If caught early enough, immediately apply Multi-Insect Killer Tree Injection Kit to the tree. This insecticide is injected directly into the tree’s vascular system and is released quickly to help kill insects already inside the vascular system.

To prevent Eucalyptus Long-horned borer attacks, in the areas where the insect is active, there are a number of steps that can be taken to reduce the chances of a harmful attack. In the early spring, treating the tree with Once-A-Year Insecticidal Drench w/Merit helps protect the tree’s vascular system. This treatment can be supplemented by regularly spraying the tree’s trunk with a good dosage of Borer-Miner Killer (every three to three weeks), thus creating a barrier to reduce further insect penetration through the bark.

The good news is that healthy and well-maintained trees are normally more resistant to the Eucalyptus Long-horned Borer, as well as less of a target. Trees under stress are more likely to be borer targets, so it is important to ensure that Eucalyptus trees receive adequate water. To help ensure that a tree is healthy, apply a TreeHelp Annual Care Kit for Eucalyptus in the spring or early summer which contain the appropriate fertilizer and mycorrhizal treatment to support the functioning of the root system.