Featured Insecticide
Guardsman® Dormant Oil is a horticultural oil-based insecticide/miticide used to control overwintering pests on trees and shrubs during the dormant season. It is designed to be applied when plants are dormant, typically in late winter or early spring before new growth begins. Guardsman Dormant Oil is formulated to suffocate and kill overwintering insect pests and their eggs by coating their bodies and blocking their breathing pores.
