Common diseases and insect pests of Amomum villosum

Amomum villosum is a kind of plant that likes hot and humid environment, and it is precisely because of this characteristic that its disease incidence is high, and the disease is mostly caused by bacteria, on the contrary, there are fewer insect pests. So what diseases are common in Amomum villosum? Next, let the pro-agricultural network give you a brief introduction.

1. Leaf spot

This is a more common disease of Amomum villosum, which occurs on the top of the leaves and finally causes the leaves to dry up. Generally malnourished or poorly developed Amomum villosum is the most likely to appear, on the leaves, the surface begins to appear some irregular yellowish spots, concentrated on the edge of the leaves, and then slowly change to a rusty color. Once the disease is found, the severe leaves should be removed and then sprayed with 75% chlorothalonil wettable powder 700 times, preferably around.

2. Blight

The time of the disease is concentrated in the seedling stage, mainly because the bacteria enter the body of Amomum villosum through the root, because the resistance is poor in the seedling stage, it can not resist the harm of the bacteria. A more common manifestation is that the roots or buds begin to rot, and white mildew will appear in some roots. After discovery, it can be treated with 1000-fold solution of Dysenamine water for a period of one month, preferably once a week.

3. Stem blight

This disease is concentrated in the rhizome, and it can also occur on some fruits. The disease turns out to be brown spots at the location of the disease, and slowly dry rot, and when it is serious in the later stage, the disease site begins to rot. Stem blight is especially easy to occur in hot and humid environment, so Amomum villosum should pay special attention to the prevention of this disease. When you get sick, you can spray it with 38% azoxystrobin 800 times or a drug with similar properties.

4. Drillworms

The heart-drilling worm is a parasitic pest that is difficult to find and will directly affect the growth of the whole plant. Most of them occurred in the seedling stage, when the heart-drilling eggs were produced on the seedlings, and they drilled into the stem of Amomum villosum due to nutritional needs after birth. in the early stage, due to the lack of nutrition, the performance was not obvious, and finally drilled out of the plant as it grew bigger and bigger. Daily method found that plants with slow growth can be sprayed with some diflubenzuron No. 3 suspension agent 100 to control.

The above are some common diseases and insect pests of Amomum villosum. We must do a good job in prevention and control measures every day. In addition, the original growth environment of Amomum villosum is relatively hot and humid in time, and the crime rate is even higher, so all aspects of prevention and control must be in place when planting in the early stage of the cycle.