What are the common flower diseases and insect pests? Identification and control methods of flower diseases and insect pests

I believe that for friends who grow flowers, pests and diseases are the most feared problems, but pests and diseases are the most common and easily encountered problems in flowers. If flowers suffer from diseases and insect pests, it is easy to cause physiological damage, such as yellow leaves, wormholes and thin roots. It not only has a great influence on the growth and development of flowers, but also causes immeasurable damage to their ornamental value, and even leads to the death of flowers in serious cases. If you want flowers to grow well, you must first identify pests and diseases, understand the causes of the disease, and do a good job in defense and treatment after the disease, so that plants can grow healthily. Judgment and treatment of common pests in flowers If only petioles are found on the leaves of flowers, they may be invaded by caterpillars, moths or moths. The leaves of flowers are often chewed, so are buds and flowers. Filamentous leaves and tiny feces can be found from time to time in the gnawed place, so your flower is undoubtedly suffering from scarab disease. Starscream is also one of the most feared pests of flowers. It mainly harms the leaves on both sides of the main vein, and patches or small yellow spots are often seen on the injured leaves. If you find unknown spots on the leaves and red bugs smaller than 1mm, there is no doubt that your flowers have been targeted by the red spider. If you find that the new leaves of flowers are bunched or shriveled at the tip, and many eggs and some unknown oily substances are attached to the leaves, then your flowers may be suffering from whiteflies and psyllids. White sticky liquid, wormholes of different sizes and straight feces were found on the leaves. Maybe the snail found your flowers. Aphids are the most common pests in early spring. Aphids hatch densely, so once they break out, they are very serious. If not controlled in time, plants will stop growing or die. If pests are found in flowers, they should be treated in time, and pesticides can be sprayed. Fruits can be sprayed to death by biting insects, such as whiteflies, psyllids, aphids, scale insects and so on. Insecticide can spray aphids, moths, moths and other pests. Malathion can kill scarabs, aphids, moths and leaf rollers. Of course, friends who have no medicine at home and are in a hurry to kill insects can use neutral washing powder or detergent and add water according to a certain proportion to kill insects. Prevention methods of flower diseases Flowers will not only be attacked by pests, but also get sick, so the awareness of disease prevention of flower lovers is also very important. First of all, when selecting flower seeds, we should choose plants with good quality and high resistance to pests and diseases to prevent pests and diseases from the source. Secondly, special attention should be paid to watering, ventilation, lighting and fertilization when planting flowers. At the same time, rural sanitation and weed management can not be ignored. When diseases and insect pests occur, attention should be paid to removing diseased leaves and branches and burning them to prevent reinfection. Chemical agents such as Bordeaux solution, formaldehyde water, carbendazim, sulfur mixture, dibromochloropropane, Tobuzin can be sprayed on plants to control the occurrence of pests and diseases from the roots. If the flowers are ill for a long time and the plants are weak, special attention should be paid to management to ensure that the temperature, light, humidity, watering and fertility are the most suitable. Generally, seriously damaged flowers should be placed in the shade first, and then sprayed with some water. They can be wrapped in plastic bags until the flowers grow new branches and buds, and then moved outdoors for normal maintenance. In order to prevent the invasion of pests and diseases or make the best response in time when flowers are threatened by pests and diseases, we should make clear the types of pests and diseases and understand the prevention and control methods so as to solve the problem in a short time.