Pest and Disease Control Methods for Industrialized Soilless Cultivation of Clivia

1. Diseases: Common diseases of Clivia during cultivation include soft rot, root rot, and anthracnose. Soft rot generally occurs in the hot, rainy midsummer; at this time, if the greenhouse is poorly ventilated or rainwater even drips onto the plants, the disease is often triggered. Once the rainy season begins, spray 2000-fold streptomycin for human use in the Clivia greenhouse about every 10 days for prevention, and strengthen ventilation; in the early stage of the disease, spray 2-3 applications of Daconil M-45 fungicide. When root rot occurs, the growing medium must be replaced, dead and diseased roots removed, and the plants cultivated in fresh river sand until new roots grow, after which they are replanted separately. In the early stage of anthracnose, spray 800-fold mancozeb fungicide for control.

2. Insect pests: Common pests of Clivia during cultivation include slugs and scale insects. Scale insects mostly occur in dark, poorly ventilated environments and generally appear in small numbers; they can be brushed off with a relatively soft brush. Slugs bite and feed on the tender leaves and young roots of the plants; they can be caught in the early morning or trapped and killed with shallow dishes filled with beer, and when they occur in large numbers, 800-fold metaldehyde slug bait can be used as a root drench to kill them.