Pests of Thunbergia paniculata and their control

Chrysops chinensis

The moth can be said to be the most important insect pest of the Chinese fern. It is very harmful and will eat all the leaves of the Chinese fern and cause the tree to wither. The moth can be said to be a pest that harms the Chinese fern many times every year. It usually occurs four times a year and lasts for a relatively long time.

If the Chinese fern is infested with moths, chemical control methods can be adopted, using some chemical agents to control pests, such as high-efficiency cypermethrin, phoxim, etc., which can be used to control the moths in the Chinese fern.

Cercidiphyllum truncatum

For the Chinese fuchsia tree, the scarab beetle is actually a rather troublesome pest because it is good at guerrilla warfare, can avoid harm, and is difficult to eliminate.

The damage caused by scarab beetles is generally greater in May and June. Scarab beetles will eat the leaves of the Japanese selengensis tree.

Scarab beetles are nocturnal and mostly appear at night, so you must pay close attention. You can choose to use pesticides such as Metarhizium muscardine 5 and acetamiprid for spraying.

Spodoptera litura

The Spodoptera litura is also a nocturnal pest. It mainly harms the Chinese fuchsia tree during the seedling stage, eating the tender leaves. In serious cases, it will eat all the leaves.

The Spodoptera litura generally appears from June to August and causes serious damage. Generally, when the fall armyworm occurs, you can spray emamectin benzoate, chlorfenapyr, hypertonic fenoxycarb and other pesticides to prevent and control it.

Aphids

The damage caused by aphids is always very serious. They will suck the branches and leaves of trees, spread viruses or cause sooty mold on plants.

Aphids usually occur in late spring to early summer, and they reproduce more vigorously in rainy weather.

Generally, aphids need to be controlled with pesticides such as imidacloprid and pymetrozine, and control must be done as early as possible.