All Fact Sheets
Bedding plant production has become a specialized, energy-efficient, and highly-profitable business. The short period of time between seeding and selling the crop leaves no room for mistakes. Plant diseases cannot be allowed to reduce the quantity of plants for sale or to reduce plant quality by stunting plants or spotting the flowers and foliage.
Over-fertilization of commercial pot or container-grown crops results in high concentrations of soluble salts in the potting medium.
While most nematodes are soil-dwelling, the foliar nematode Aphelenchoides lives only briefly in soil. More importantly, it lives on the above-ground portions of plants, often without causing any obvious symptoms.
Two closely related viruses, Impatiens Necrotic Spot (INSV), and Tomato Spotted Wilt Virus (TSWV), once called the I-strain and L-strain of tomato spotted wilt, have been widespread and devastating in the greenhouse industry.