Causes and control measures of rotten flowers of towel gourd in greenhouse

The temperature in winter is not suitable for the growth of towel gourd, but the improvement of greenhouse technology makes it possible to eat towel gourd in winter, and rotten flowers to towel gourd is also a more common phenomenon, which has a lot of impact on the yield of towel gourd. It has also brought greater economic losses to farmers. So what is the cause of towel gourd rotten flowers? How to prevent and cure it? Come and have a look with the editor.

1. analysis of the causes of rotten melon symptoms.

The main results are as follows: 1. With the decay of flowers, the style will also appear black rot, which may be caused by the disease caused by the lack of calcium and boron in the soil, as well as the poor absorption of roots and the incoordination of water supply. Foliar fertilizer containing calcium and boron can be sprayed, and at the same time, attention should be paid to root cultivation to enhance root absorption capacity, which can prevent this phenomenon from happening.

2. The petals are dry and rotten at the edge, and the whole petals are not fresh, which may be the manifestation of drug damage or vine blight. Vine blight occurs more seriously in low light environment, especially after continuous cloudy days. Drugs such as methyl topiramate or Shibaogong can be sprayed to reduce the occurrence of the disease.

3. Water rotten planting began to appear from the edge of the petals, and when the petals were serious, the petals even dripped, accompanied by tea, but there was no white mold. This phenomenon may be caused by bacterial soft rot, but if it grows white mildew, it may be caused by flower rot or cotton blight, which is more serious in high temperature and humidity environment. Can spray streptomycin, norfloxacin, neophytomycin and other agents to propagate soft rot, spray Kelu, Kejia, Anke, Redomir and other agents to control flower rot or cotton blight.

II. Prevention and control measures

1. Dip in anther concentration

Dipping in the anther is generally given priority to with naphthalene acetic acid, 2helium 4murD, and then dipped in flowers with appropriate amount of nutrient solution and agents for prevention and control of Botrytis cinerea, which can effectively prevent towel gourd from rotting.

2. Smoking

Smoking is also a kind of prevention and control of towel gourd rotten flowers, generally in the flower dipped in 3-4 days after the peak of rotten flowers, this is also the best time for smoking control, you can use Pythium smoke agent and chlorothalonil smoke scavengers alternately.

3. Prevention of drug damage

Loofah flower is delicate, improper spraying is easy to cause drug damage, so we must pay attention to the choice of medicine during flowering, and the spray concentration must be used in accordance with the instructions, do not increase the concentration at will, so as to avoid drug damage.

The above is the greenhouse towel gourd rotten flower causes and control measures, hope to help you, want to know more related knowledge, please pay attention to us.