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Detailed Explanation of Lily Pest and Disease Control Measures and Practical Methods

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(1) Rotate crops with a 3-year break. When planting lilies along a slope, plant from the bottom upward to reduce the spread of pathogens. (2) Select bulbs free of disease, mites and mechanical injury as seed bulbs to reduce sources of bacteria and mites. (3) Burn dead branches and fallen leaves in the field and diseased and pest-infested plant residues to reduce sources of pests and diseases. Organic fertilizer should be composted and fermented until fully decomposed before being applied to the lower soil layer. (4) Use deep furrows and high beds, clear the furrows and drain water to control soil moisture content. (5) Soak for disinfection and mite elimination. Before sowing, use a 4000-fold dilution of 20% Saomanjing wettable powder plus a 70% Thiophanate-methyl wettable powder

(1) Rotate crops with a 3-year break. When planting lilies along a slope, plant from the bottom upward to reduce the spread of pathogens.

(2) Select bulbs free of disease, mites and mechanical injury as seed bulbs to reduce sources of bacteria and mites.

(3) Burn dead branches and fallen leaves in the field and diseased and pest-infested plant residues to reduce sources of pests and diseases. Organic fertilizer should be composted and fermented until fully decomposed before being applied to the lower soil layer.

(4) Use deep furrows and high beds, clear the furrows and drain water to control soil moisture content.

(5) Soak for disinfection and mite elimination. Before sowing, soak the bulbs for 3-5 minutes in a 4000-fold dilution of 20% Saomanjing wettable powder plus a 1000-fold dilution of 70% Thiophanate-methyl wettable powder (when the temperature is above 30°C, shorten the time to 3 minutes) to eliminate bacteria and mites.

(6) Chemical control in the field. According to experiments and investigations, chemical control in the field emphasizes prevention and values early application, and only continuous multiple applications can be effective. At sowing, use 10% zinc and phorate granules plus 2 kg of 50% Dexon wettable powder or 0.5 kg of 50% Thiophanate-methyl wettable powder per mu to make medicated soil, place it in the sowing furrow, then sow and cover with soil; in early to mid-April, drench the root area with a 3000-fold dilution of 20% Saomanjing wettable powder or a 1500-fold dilution of 40% isocarbophos emulsifiable concentrate plus a 300-fold dilution of 5% JunDuQing aqueous solution or a 700-fold dilution of 50% Dexon wettable powder. Root drenching must be done on a sunny day or a cloudy day when the soil is not waterlogged, and the surface soil must be hoed loose before drenching; otherwise, the effect is poor and the normal growth of lilies is affected. Drench the root area 2-3 times in total, with an interval of 15-20 days each time. Begin spraying for protection from the emergence of lily seedlings, applying once about every 15 days, for 6-7 consecutive sprayings, alternating treatments. In addition, a 700-fold dilution of 50% mancozeb wettable powder or a 700-fold dilution of 75% chlorothalonil wettable powder can also be used to drench the root area.

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