What about the rotten roots of Anthurium andraeanum?

[symptoms] at the initial stage, a small number of roots were infected, yellowish to brown stripes appeared on the root surface, and the cortex gradually swollen and rotted. With the continuous reproduction of nematodes in the roots, the whole root system was infected, and the root system shrunk, turned brown, and finally rotted black. The shoots with mild disease had no obvious symptoms, and a small part of the roots were discolored and rotten. The roots of the seriously diseased plants were necrotic and rotten, the aboveground parts were yellowed, and there were rust spots, decline, dwarf and few ramets.

[pathogen] Banana perforating nematode (Radopholus similis), belonging to nematode phylum, lateral caudate gland class, Coleoptera, short body family, perforating genus, both female and male worms are linear. The female has a low head, not constricted or slightly constricted; the oral needle is well developed and has an obvious basal ball; the esophagus develops normally, and the posterior esophageal gland covers the intestine from the back; the double gonads extend to each other; the tail is long conical and the end is obtuse. The male has a tall head. Significant constriction, spherical; significant degeneration of needle and esophagus, no obvious ball at the base of needle; fimbria does not extend to the tail end. The suitable temperature for the growth of banana perforated nematode is 24-28 ℃.

[occurrence regularity] Anthurium andraeanum root rot can infect new roots and young roots by perforated nematodes in seedling stage and adult stage, potted seedlings and ground seedlings.

[prevention and control methods]

① irrigated the root with 50-fold solution of 72.2% Pricket water agent at an interval of 1 week for 3 times in a row.

② was irrigated with 64% disinfectant alum wettable powder 500x solution at the initial stage of the disease. It was applied once every 10 days for 2 or 3 times.

③ 50% thiram and 5% dexamethasone powder were mixed to root. At an interval of 7 to 10 days, the first two times should be used as 500 times of the liquid, and the third time as 100 times.

What about the rotten roots of Anthurium andraeanum? what's wrong with the rotten roots of Anthurium andraeanum?

Anthurium andraeanum is a kind of plant with high ornamental value, its flowers are unique, there are Buddha inflorescences, the color is bright and gorgeous, and the fiery red flowers set off the green leaves, which looks extraordinarily good-looking, but the rotten roots of Anthurium andraeanum will also appear if it is not properly maintained. so what about the rotten roots of Anthurium andraeanum? what about the rotten roots of Anthurium andraeanum?

What's wrong with the rotten roots of Anthurium andraeanum?

1. Anthurium andraeanum root rot symptoms: at the initial stage, a small number of roots were infected, light yellow to brown stripes appeared on the root surface, and the cortex gradually swelled and rotted. With the continuous reproduction of nematodes in the roots, the whole root system was infected, and the root system shrunk, turned brown, and finally rotted black. The shoots with mild disease had no obvious symptoms, and a small part of the roots were discolored and rotten. The roots of the seriously diseased plants were necrotic and rotten, the aboveground parts were yellowed, and there were rust spots, decline, dwarf and few ramets.

two。 Pathogen analysis: banana perforating nematode (Radopholussimilis), belonging to nematode phylum, lateral caudate gland class, Coleoptera, short body family, perforating genus, both female and male worms are linear. The female has a low head, not constricted or slightly constricted; the oral needle is well developed and has an obvious basal ball; the esophagus develops normally, and the posterior esophageal gland covers the intestine from the back; the double gonads extend to each other; the tail is long conical and the end is obtuse. The male has a tall head. Significant constriction, spherical; significant degeneration of needle and esophagus, no obvious ball at the base of needle; fimbria does not extend to the tail end. The suitable temperature for the growth of banana perforated nematode is 24-28 ℃.

3. Occurrence regularity: Anthurium andraeanum root rot can cause perforation nematode infestation on new and young roots in seedling stage and adult stage, potted seedlings and ground seedlings.

What about the rotten roots of Anthurium andraeanum?

If you find rotten roots, wash them first and cut them off. Put it in a ventilated and cool place, and then soak it with chlorothalonil diluted water for about 20 minutes. It is best to change the soil. If there is no soil, you can also sterilize the original soil at high temperature (microwave oven, steamer). Add some rooting agent to the bubbling water and pour it into the rooting water. and if the ground is warm, it should be isolated from the ground. Drug prevention and treatment methods are as follows:

1. The root was irrigated with 50 times of 72.2% Prike water agent at an interval of 1 week for 3 times in a row.

two。 In the early stage of the disease, 64% of alum wettable powder 500 times the solution was used to irrigate the root. It was applied once every 10 days for 2 or 3 times.

3.50% thiram and 5% dimethazone powder were mixed and irrigated. At an interval of 7 to 10 days, the first two times should be used as 500 times of the liquid, and the third time as 100 times.

The above is how to do the rotten roots of Anthurium andraeanum and what happened to the rotten roots of Anthurium andraeanum. The optimum temperature for the growth of Anthurium andraeanum is 22: 32 ℃ per day and 21: 24 ℃ at night. When the temperature exceeds 35 ℃, it will cause burning leaves, light bracts and shortening the life of flowers. When the temperature is lower than 10 ℃, the growth is slow, and the lower leaves are yellowed. When the temperature is high, it can be adjusted by spray cooling and humidification.

What about the rotten roots of Anthurium andraeanum? what will happen if there is not enough light?

Anthurium andraeanum is more popular in life, and the flowers are red, which is very auspicious, but how to raise Anthurium andraeanum to have rotten roots, yellow leaves and insufficient light? what can we do?

As an indoor potted plant, Anthurium andraeanum is a rare color variety, and its maintenance is relatively simple. However, if we do not understand its habits, it is easy to lead to various problems of Anthurium andraeanum, such as leaf disease yellowing, disease or direct death.

Anthurium andraeanum is suitable to grow in a warm, humid and well-drained environment, afraid of drought and strong light exposure, but lack of light will hinder flowering.

Anthurium andraeanum has higher requirements for temperature, especially low temperature will cause rotten roots, which will freeze or even die when it is less than 10 ℃.

Anthurium likes to be wet but avoid stagnant water, if stagnant water at the bottom of the basin will lead to root necrosis, so it is necessary to choose loose and breathable soil.

If the Anthurium andraeanum is raised to death, it is also very sad. The price of Anthurium andraeanum is still very expensive, and few flowers can be sold at this price. If the roots are rotten, you should see if the soil of Anthurium andraeanum is stagnant, and take it out to bask in the sun if there is not enough light.