Construction materials can include fiberglass, wood, wire, plastic and PVC hoops.
Browning or dieback is usually caused by weather-related stress, sometimes in combination with pests and diseases.
The Columbia root-knot nematode attacks potatoes and causes injury to tubers in the Columbia Basin of Oregon and Washington as well as other areas of the Pacific Northwest.
Tomatoes are the most commonly produced greenhouse vegetable crop. Although greenhouse promoters claim each plant can produce 30 or more pounds of marketable fruit per year, that level of production is only possible with very ...