How to treat the disease of medicinal leaves in Mashan?

Ma yam is mostly grown in shady mountain areas, can be used as medicine, and has a good taste. It is planted in most parts of China, so how to treat the disease of Mashan medicinal leaves?

How to treat the disease of medicinal leaves in Mashan?

In view of different hazards, prevention and control methods are different. For example:

1. Anthrax

The main results were as follows: (1) Chemical control: Trichoderma harzianum leaf type 300 times liquid foliar spray, combined with soil irrigation, Trichoderma harzianum leaf type prevention; after the disease, 12% copper oleate 800 times foliar spray, once every 7 days, spray 2-3 times.

(2) Agricultural control: rotation of disease land for more than 2 years; removal of disease and residue after harvest, concentrated burning, and deep turning of soil; adopting high support management, reasonable close planting to improve field microclimate; strengthening field management, timely mid-ploughing and weeding, loosening soil and drainage; rational fertilization, mainly rotten organic fertilizer, cultivate strong seedlings and enhance plant disease resistance.

two。 Epidemic disease

(1) Chemical control: 300-fold solution of Trichoderma harzianum leaf type or 800-fold foliar spray of 12% oleic acid copper was selected to give priority to prevention.

(2) Agricultural prevention and control: select land with high topography and good ventilation for planting. Design the border according to local conditions, pay attention to the density is not too large, avoid stagnation between plants; do a good job of fertilizer and water management to prevent premature senescence of plants; pay attention to clear ditches and drainage on rainy days; remove the diseased remains in time after harvest, concentrate on burning or deep burial, and turn deep into the soil.

3. Leaf spot disease

The 300-fold solution of Trichoderma harzianum was sprayed directly on the leaves of the diseased part. at the same time, fumigation combined with fumigation preparation can effectively control leaf spot disease, and it can be applied in cloudy days, but the temperature and humidity have little effect on the efficacy. At the same time, the preparation is a biological agent and is absolutely safe for crops and bees.