Flies on Holly Bush: Likely Attracted to Flowers; Contact Local Extension

Hundreds of Flies on a 20‑Year‑Old Holly in July

A South Jersey (Atlantic County) gardener has a large, smooth‑leaved holly (not American or English) covered in flies. The responder initially asked for holly type and location, then after follow‑up, could only refer to Rutgers Cooperative Extension.

Likely Cause

Flies are often attracted to holly flowers (small, inconspicuous) or to honeydew from scale/aphids. Without a photo or precise ID, specific control is guesswork.

Best Next Step

Contact Rutgers Master Gardeners for Atlantic County: njaes.rutgers.edu/county/quickinfo.asp?Atlantic. They can identify the holly and the fly species, then recommend targeted, safe management.