Characteristics of three common pepper pests and diseases
As a kind of seasoning vegetable, pepper is very popular among many people. Despite the strong taste of the peppers, there are still many pests and diseases that erode the growth of the peppers and reduce the yield of the peppers. Generally, there are three kinds of diseases and insect pests that often occur on peppers: viral diseases, sassafras, and thrips. Those who know how to cultivate should first understand the characteristics of these three pests and diseases, and then prescribe the three diseases and insect pests. Firstly, the young parts are damaged, causing the leaves to become smaller, thicker, harder and browner. The leaves are curled like fern leaves, the leaves grow slowly, the plants become smaller, and the leaves are falling, falling, and falling. The affected fruit develops slowly and forms a stiff fruit. 1. Viral disease : It is mainly transmitted by insects such as aphids, whitefly, and whitefly. It can also be transmitted through seed poisoning and mechanical friction. The damaged plants firstly had slight chlorotic but unclear veins in the heart leaf, which gradually changed into mosaic shrinkage. Later, the diseased leaves were thickened, the main veins were brown and necrotic, and then extended to the lateral branches, main stems and growth points. The edge of the leaf curls toward the front of the leaf to form a "upper bucket", and the young leaves and the old leaves are generally curled at the same time. The fruit is affected by long spots of dark green and light green, with ridges. 2, sassafras : has a tenderness, when the feeding site becomes old, immediately transferred to the new young parts. Chengyu and Ruoyi feed on the young shoots of the young shoots and the back of the young leaves, causing the leaves to chlorotic and veins. The damage is oily and lustrous, grayish brown or yellowish brown, and the leaves are curled toward the back of the leaves. Under the buckle, the tender stem is distorted and deformed, and has a willow-like shape. The leaf surface has oil-like luster. When the fruit is damaged, the surface of the fruit stalk and the bracts are grayish white to taupe, which loses luster and becomes hardened by wood. The carcass is not easily noticeable to the naked eye, but can be observed under a magnifying glass. 3, Hummer : Adults have the habit of upward, green, and very active, can fly good, but afraid of glare, more hidden in the leaf back or growth point during the day, the evening activity is very strong. With adults and nymphs sucking the leaves of the heart leaves, young leaves and flowers, the heart of the damaged plants can not be opened, the growth point is atrophied, the young leaves are twisted, the plants grow slowly, and the internodes are shortened. The seedling stage often causes the leaves to shrink and rough, and the damaged spots (face) are spotted; the flowering period can cause the flower buds to fall off; the fruit setting period can cause the young fruit to age, stiffen and yellow. Closet Cabinets,Closet Cabinets With Doors,Closet Cabinets With Drawers,Walk In Closet Cabinets Ningbo Oulin Import&Export Co.,Ltd. , https://www.oulinfurniture.com