Red Shoot

Phytophthora spp. or environmental

13 host plants

Last updated

Data Maturity Baseline

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

Red shoot appears as reddish discoloration of new growth on affected plants. This condition can result from viral infection or environmental stress. Monitor plants closely for symptom progression. Remove severely affected material. Manage vectors and maintain plant health. Monitor your plants closely and implement integrated management strategies. Prompt removal of infected material helps limit disease spread Early detection and prompt management of symptoms help limit disease spread.

Prevention works better than treatment for red shoot. Choose resistant varieties when they exist, site plants where air moves freely, and maintain good sanitation by removing debris and infected material. When chemical intervention is necessary, timing matters more than product: apply protectants before the infection window, not after symptoms appear.

Quick Reference

Causal Agent
Phytophthora spp. or environmental
Host Plants
13

Host Plants (13)

Cotoneaster apiculatus Cranberry Cotoneaster Vaccinium angustifolium Lowbush Blueberry Vaccinium corymbosum Highbush Blueberry Vaccinium crassifolium Creeping Blueberry, Thick-leaved Whortlberry Vaccinium macrocarpon Cranberry American Cranberry Vaccinium membranaceum Big Huckleberry, Mountain Huckleberry Thinleaf Huckleberry Vaccinium moupinense Himalayan Blueberry Vaccinium ovalifolium Oval-leaf Blueberry Vaccinium ovatum Box Huckleberry, Evergreen Huckleberry Vaccinium parvifolium Red Huckleberry, Red Whortleberry Vaccinium sikkimense Sikkim Blueberry Vaccinium uliginosum Bog Blueberry, Bog Bilberry Vaccinium vitis Vaccinium vitis