What's eating my betula pendula 'youngii'?

Youngii weeping birch shares the pest vulnerabilities of all Betula pendula selections. Bronze birch borer is the most serious threat, while birch aphids, leaf miners, and caterpillars cause seasonal cosmetic damage. The weeping, compact form can make it harder to spot early borer entry holes, so inspect the bark annually.

D-shaped exit holes and swollen ridges on main stems; dieback spreads downward through the weeping crown; bark splits revealing winding galleries Water deeply during dry periods; remove infested wood promptly; preventative systemic imidacloprid drench for high-value specimens; site in partial shade to reduce bark heat

Dense colonies on pendulous shoot tips; honeydew drips onto anything below; minor leaf puckering and early leaf shed Insecticidal soap or neem oil spray; encourage natural predators; strong water jet dislodges light infestations

Brown blotch mines forming in leaves from late spring; premature browning and leaf drop; aesthetically damaging on a specimen tree Rake and bin all fallen leaves; systemic soil drench in early spring for repeated infestations; avoid creating drought stress which compounds damage