Participants will to learn about photoperiodic versus photosynthetic lighting in this three-month, self-paced online course about greenhouse and horticultural lighting. Registration closes Dec. 7, 2018.
Some species of nematodes are an asset in reducing pest populations in greenhouse production while other species can cause plant stunting, reduced yields and marketability.
New combinations of nematicides, bleach dips and ultraviolet treatments are successful in reducing the northern root knot nematode pressure on daylily rootstock.