Pest Control of Nephropteridium

Kidney fern has few diseases and insect pests in cultivation, but sometimes due to poor management, it will encounter the following problems: for example, slugs will damage in too humid places, and scale insects will occur when ventilation is poor.

In addition, there are sometimes nematode damage, resulting in brown round spots on the leaves, affecting ornamental. These problems can be effectively avoided and overcome as long as they are managed correctly and carefully in cultivation, pay attention to the growth habits of kidney fern, and provide it with suitable conditions such as temperature, humidity, light, soil and so on.

Prevention and control of common diseases and insect pests of kidney fern

Kidney fern (scientific name: Nephrolepis auriculata (L.) Trimen): epiphytic or native. Rhizome erect, covered with fluffy light brown long subulate scales, lower part with thick iron filiform stolons spreading horizontally, stolons brown, unbranched, sparsely covered with scales, with slender brown whiskers. Leaves clustered, dark brown, slightly glossy, leaf blade linear-lanceolate or narrowly lanceolate, pinnate, pinnate, alternate, often dense and imbricate, lanceolate, leaf margin sparsely obtusely serrated. Leaf veins conspicuous, lateral veins slender, autonomic veins oblique upward, bifurcated in lower part. Leaves firm herbaceous or herbaceous, brownish green or brownish brown after drying, smooth. The sporangia are arranged in a row on both sides of the main vein, reniform, born at the top of the superior veinlet of each group of lateral veins, located at 1 beat 3 from the edge of the leaf to the main vein; the cysts are reniform, brownish brown, the margin is light, glabrous.

Native to tropical and subtropical regions, there are wild mountain forests in South China. Evergreen and epiphytic in the stone crevices and tree trunks under the forest by the stream. Like warm, moist and semi-shady environment, avoid direct sunlight. Kidney fern is a widely used ornamental fern inside and outside China. In addition to garden application, kidney fern is also a traditional Chinese medicine. There are a large number of sporangia on the back of the kidney fern, which are used to reproduce. Prevention and control of common diseases and insect pests of kidney fern

1. Leaf spot is mainly harmful to leaves, which causes leaf yellowing and shedding when it is serious. It can be sprayed with 600 times liquid of 65% mancozeb wettable powder. 2. Red spider is not ventilated and muggy weather is easy to occur. Fengyao is harmful to leaves. Control method: can use 1000 grams of water boiled 25 grams of chili water spray, simple and effective. It can also be sprayed with 1000 times of omethoate EC. Other methods can be found in the section on disease and pest control of variable-leaf wood. 3. Aphids are mainly harmful to tender shoots and leaves. When it first occurs, it can be sprayed with soapy water. For other control methods, see the section on pest control of tiger tongue red. Diseases and insect pests of kidney fern and their control methods

Main diseases of kidney fern, leaf blight and its control methods

Leaf blight, also known as leaf blight or leaf spot, mainly harms the leaves of kidney fern. Small brown spots appear on the leaves at the initial stage, and the small spots grow bigger and bigger. In the later stage, the large spots become one, withering the whole leaf. The ornamental value of kidney fern lies in its green and glossy leaves, once the leaves wither and fall, then its ornamental value will be completely lost. The method of prevention and control is actually very simple, it can be sprayed regularly with medicine, and it can be sprayed with mancozeb wettable powder.

Red spider, the main pest of kidney fern and its control methods

Red spiders are more common in spring and summer. Red spiders will eat kidney fern leaves and then go to another leaf to eat, which is very harmful. If you want to prevent and cure it, you can spray it with pepper water or medicine. The common method is to spray pepper water, which has the advantages of low cost and high efficiency.

Aphids and their control methods

Aphids mainly occur in the young stage of kidney fern, and aphids will attach to the young leaves of kidney fern to suck nutrients from the leaves. The prevention and control method is also relatively simple, you can spray soapy water at the initial stage, and you can spray appropriate amount of medicine to remove aphids in the later stage.