Cypress tip moth and allies

Argyresthia spp.

20 host plants

Last updated

Data Maturity Baseline

This profile contains verified pest data from extension databases. Regional field notes and expert review are in progress.

Cypress tip moth and related species produce webbing and damage at juniper and cypress shoot tips, causing dieback and deformation of new growth. You will see brownish, wilted shoot tips with entry holes and silk webbing in late spring and early summer. The affected tips eventually turn brown and fail to elongate, leaving bare branches and ragged plant form. Damage accumulates season after season on heavily infested trees.

Prune out infested shoot tips below visible damage and dispose of them in sealed bags to destroy larvae. This simple removal controls light infestations effectively. Maintain plant vigor through adequate watering; stressed junipers are more attractive to moths. Monitor new growth regularly during late spring for early signs of damage. Dormant oil spray applied in late winter may reduce overwintering populations. Most infestations remain light enough that pruning alone keeps appearance acceptable.

Quick Reference

Order
Lepidoptera
Type
chewing-insect
Host Plants
20

Cultural Controls

Host Plants (20)

Juniperus californica California Juniper, California White Cedar, Desert White Cedar Juniperus cedrus Canary Island Juniper Juniperus chinensis Chinese Juniper Juniperus communis Common Juniper Juniperus conferta Juniperus conferta Juniperus deppeana Alligator Juniper, Checkered-bark Juniper Juniperus formosana Formosan Juniper Juniperus grey Juniperus grey Juniperus horizontalis Creeping Juniper Juniperus monosperma Oneseed Juniper Juniperus occidentalis Western Juniper Juniperus osteosperma Utah Juniper Juniperus pingii Ping Juniper Juniperus procumbens Japanese Garden Juniper, Bonin Island Juniper, Ibuki Juniper Juniperus rigida Temple Juniper, Needle Juniper Juniperus rigida subsp. conferta Shore Juniper Juniperus sabina Savin Juniper Juniperus scopulorum Rocky Mountain Juniper Juniperus squamata Singleseed Juniper, Flaky Juniper, gao shan bai Juniperus virginiana Eastern Redcedar Pencil Cedar