What about the latest balsam pear dead tree?

Plant balsam pear to die seedling soon, or grow in the process suddenly slowly yellows dead, this is what reason, encounter such circumstance how to do,. In fact, there are many reasons for such diseases, which may be physiological reasons, insect harm, or infection of bacteria harm leading to death, there may be other environmental reasons, so now look at what is going on, how to prevent, deal with.

I. Viral diseases

Balsam pear is easily infected with virus diseases after being sucked by insects carrying viruses such as thrips, aphids and planthoppers. There are many kinds of virus diseases. Some vegetables can be infected with the same virus, and the virus can be transmitted through the friction of branches and leaves of agricultural operations. Bitter melon plants may die after infection with virus. Therefore, to prevent these insects, the main use of acetamiprid drugs plus anti-toxic lentinan or oligosaccharide chain protein plus brassinolide, generally once a week.

II. Nematode disease

Nematodes harm a variety of vegetables, mainly harm bitter gourd root system, with a needle, can pierce bitter gourd root, and then let their saliva into the root system, resulting in root growth tumor, abnormal growth. Root tubercles are white at first and then black, and lose absorption ability after left. Without nutrients and moisture absorbed, the plant will die. Use Yinghui thread killer or Paecilomyces lilacinus, or use avermectin effect and methyl bromide for soil disinfection.

III. Soil-borne diseases

The main soil-borne diseases damage balsam pear and cause death, common root rot, blight, blight, blight occurs in the whole period, the most serious damage in the fruiting period. Seedlings die easily. Stem rot, vascular damage, will die seedlings. Phytophthora root rot, bark and xylem separation, water-soaked, eventually dead seedlings. Root rot victims root rot, leaving vascular bundle, upper dead. spray carbendazim to control root rot; drench 50% benomyl WP 1500 times to control fusarium wilt; use 72% Kelu WP 500-800 times to control phytophthora blight.

IV. Mismanagement

Sometimes the soil is hardened or sticky. If it is serious, the root system cannot breathe and grow. It may be suffocated by oxygen and rot, and then the seedlings will die. Sometimes inadequate fertilization and malnutrition lead to yellow flowers dying. Fertilization concentration too high, too close to the root will die seedlings. It can be cultivated, fertilized at a distance, melted water used, and reduced in concentration.

About balsam pear dead tree is mainly the cause of disease and insect pests, other is some fertilizer soil management amount problem, prevention and control of diseases, and improve the growth environment, as well as nutrition adjustment, can prevent dead tree.