Inquiries: I am a farmer in Minqin. I plant 50 mu of licorice. This year is the second year. The growing situation is poor. The leaves are eaten by insects. How can we solve them?

Answer: 1. If the licorice seed is in thin and acidic soil, it must be applied as soon as possible, slaked lime, Mushi 15 kg or so, can not only add calcium, but also promote the growth of licorice, while also changing the soil acidity . In addition, according to the growth of licorice, Mushi phosphorus diammonium 15 to 20 kg, is conducive to the promotion of licorice to restore growth.

2. Early licorice sprouting, perennial, high density in the field, high degree of deterrence, is conducive to the occurrence of rust, powdery mildew, leaf spot and other diseases, so it should be prevented as soon as possible. The use of three agents including lime sulfur, triadimefon, triadimefon, chlorothalonil, and thiophanate-methyl can be used for prevention.

3. Glycyrrhiza uralensis seeds When the licorice is in flowering, the eggs are produced on the flowers. After hatching, the seeds are bred and eaten. The seeds emerge within the seeds. The adults fly out of the seeds and leave a small hole on the seed. This seed completely loses its ability to germinate. Apply pesticides early to prevent it.

4. Acer palmatum is a kind of pest that specially eats licorice leaves. When the pest occurs seriously, all the leaves of licorice can be eaten, and the plants become light stalks to reduce the yield, thus affecting the quality of licorice. The insecticide should be used. Early prevention and treatment.

5. Small green leafhoppers and big leafhoppers suck the sap of the young leaves of licorice, causing the leaves to turn yellow and white and dry, affecting the growth of licorice, and can be used to prevent insecticides.

6. Spray foliar fertilizer, usually spray 2% potassium dihydrogen phosphate 60 ~ 80 kg, can also be used for amino acid and other leaf fertilizer, spray leaf fertilizer operation method is simple, can promote growth, but also improve the quality, cost small The effect macro is recommended.

7. Licorice drought, but excessive drought will inhibit the growth of licorice, artificial irrigation can be done, flood irrigation should not be flooded.

Through the above measures, we can promote the growth of licorice and prevent the leaves from being fed. This is an important measure to improve the quality and quality of licorice.

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