Isatis root cultivation: How to prevent and control pests and diseases of Isatis root?
How to prevent and control pests and diseases of Isatis root? Please explain the methods. Common pests and diseases of Isatis root include downy mildew, root rot, cabbage white butterfly, diamondback moth, etc. The prevention and control methods are described in detail below for reference: 1. Downy mildew: mainly damages leaves and petioles. Pay attention to drainage and ventilation with light; before and at the early stage of the disease, spray with 50% Tuzet 1000...
How to prevent and control pests and diseases of Isatis root? Please explain the methods.Common pests and diseases of Isatis root include downy mildew, root rot, cabbage white butterfly, diamondback moth, etc. The prevention and control methods are described in detail below for reference:
1. Downy mildew: mainly damages leaves and petioles. Pay attention to drainage and ventilation with light; before and at the early stage of the disease, spray with 50% Tuzet 1000-fold solution or 65% zineb 500-fold solution for control.
2. Root rot: often occurs in rainy seasons, causing the roots to rot and potentially killing the whole plant. Control method: spray the plant roots with 70% thiophanate-methyl wettable powder 1000-fold solution, and pull out and burn the diseased plants.
3. Cabbage white butterfly and diamondback moth larvae: mainly damage the leaves. At the larval stage, spray with 90% trichlorfon 800-fold solution or 2.5% derris extract emulsifiable concentrate 500-800-fold solution for control.
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