Pests and diseases in the city that never sleeps and their control

Root rot in the city that never sleeps

Root rot

Most root rot diseases are caused by wounds being invaded by pathogens and improper planting management, excessive watering and fertilization, overly wet soil in the pot, and suffocation of the roots, which leads to rot.

Prevention

Loosen the soil frequently to allow the roots of the evergreen tree to breathe. Do not overwater to avoid water accumulation, which will cause poor breathing of the roots. Pay attention to the frequency of fertilization. It is not advisable to fertilize during the dog days to avoid root rot.

If you find that the Everbright City has root rot, you should dig up the original plant in time, cut off the rotten roots, soak it in 5000 times potassium permanganate solution for one hour, and then replant it with new soil.

Anthracnose and Botrytis cinerea

Anthracnose and Botrytis cinerea

A hot and humid environment can easily cause anthracnose and gray mold. It will reduce the ornamental value of the City That Never Sleeps, and in severe cases may cause plant necrosis.

Prevention

It is hot and rainy in summer, so pay attention to rain protection and do not water too much.

If the City That Never Sleeps is found to be infected with anthrax and gray mold, you can spray it with 500-600 times diluted 70% thiophanate-methyl wettable powder or 50% carbendazim wettable powder.

Scale insects

Scale insects

Scale insects are very annoying pests with hard shells. It's a huge blow to the city that never sleeps.

Prevention

Keep a habit of checking for pests.

Scale insects are in the first age stage within 1 to 3 days. At this time, it is best to buy pesticides and spray them to kill them in the cradle without giving them the opportunity to do harm.

Aphids in the city that never sleeps

aphid

Aphids are a common disease of bonsai cultivated at home. Aphids are small and their breeding period is from March to October every year. They gather on the young leaves of the plants and suck the sap from the leaves, which harms the health of the plants.

Aphids cannot be removed manually like other pests, so some pesticides or physical treatment methods are often required.

Prevention

In the early stage of aphid infestation, artificial aphid prevention measures should be taken, and the aphids should be brushed off with a brush or a brush.

Use 50 grams of fresh chili pepper or dried red chili pepper, add 30 to 50 grams of water, boil for about half an hour, and use the filtrate to spray the City That Never Sleeps, which will have special effects.

Chemical control.