Excessive summer irrigation of oak and madrone trees may promote fungal diseases such as the oak root fungus (aka armillaria root disease) and crown rot.
OSU research indicates that the less toxic iron phosphate containing slug baits are as effective as those with metaldehyde.
Home remedies have shown some effectiveness against many garden pests and diseases.
Rooting tonics contain plant growth hormones used to stimulate root growth during plant propagation. They're easy to make at home.
Control plant-eating mollusks early and often
Gardeners with small-scale orchards can take advantage of hazelnut varieties bred in recent years at Oregon State University that resist eastern filbert blight.