Identification and Prevention of Flower Pests
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There are many types of insect pests and insect pests, and they can be divided into the following categories according to the locations and methods of pests. 1. Leaf insect pests: The mouthparts of these pests are chewing, and when eaten in danger, they erode the leaves of flowers and cause damage to the leaves. In severe cases, the leaves can be eaten completely. The common pests are yellow thorn moths, large bridge insects, beetles, etc., as well as snails, cockroaches, and rodents. 2. Sucking and sucking pests: Such insect pest mouthparts, such as needles, can penetrate into the flower plant tissue (leaves or tender tips), suck the nutrition of the flower plant tissue, make the leaves dry and fall off, and the damaged leaves often show chlorosis to white or brown. These pests are small in size and varied in variety and are sometimes difficult to detect. Common locusts, scale insects, whiteflies, thrips, leafhoppers and so on. Some of these pests can secrete honey dew, and some can secrete wax, not only contaminating the leaves and branches of flowers, but also easily lead to coal contamination; Can adhere to leaves and shoots. 3. Drilling pests: This type of pest drills feed on the branches and stems of flowers. They can empty stems and branches and eventually lead to plant death. Such as Kikuchi, Dahlia moth, rose stem bee and so on. Some drilled into the blade hazard, the blade can see the drill tunnel, can cause dry leaves die. 4. Soil pests: These pests live in shallow and superficial layers of the soil throughout their lives, often resulting in wilting or death of damaged flowering plants. Such as ground tigers, golden needles, cockroaches and so on. Inspection and Identification Inspection of worm droppings: Check whether there is any worm droppings around the floor where the flowers are placed and on the branches. For pests that have penetrated into the branches, check whether there are feces and wood chips scattered in the defecation hole. The excrement and sawdust produced by Sky Steak are mostly filiform; the excrement of Codling Moth is granular and sticking together. 2. Check the excrement and secretions: Check whether there is oil in the branches and leaves of flowers and trees. These substances are generally caused by pests that can secrete honeydew, wax, etc., mainly locusts, aphids, and whiteflies. Suction mouth pests. 3. Check eggs: large eggs, egg pieces can be seen with the naked eye, tiny eggs can be checked with a magnifying glass. General eggs are produced in branches, leaves, buds, etc., such as the red spider eggs are hiding in the back of the leaves, the eggs of the caterpillars are on the branches, the eggs of the roundworms are in the buds, and the eggs of the roundworms are in the soil. 4. Shooting branch inspection: For some pests that are disturbed and fly, they can be found by flapping or shaking the branches and leaves. Red spiders are small and difficult to distinguish with the naked eye. You can choose a representative area for the flower planting area, put a white paper, and then slap the flowers to check if there are red spiders. 5. Checking the damage: Whether the leaves or branches of the flowers or trees are damaged by bites, such as holes, nicks, or screens. It is also possible to check whether the leaves are curled or not. There are no foreign bodies growing on the shoots and there are no dry tips or dead branches. 6. Check the pests in the soil: Check whether the soil surface is abnormal. If the walking area has prominent marks on the soil surface. Some adult beetle lurks under the top of the flower rhizome and can be found by prying the top soil. Control method l. Strict quarantine: This method can ensure the introduction of ornamental flower seeds, seedlings, potted flowers from invasion of pests. 2. Horticultural control: The method of soil disinfection and cultivation management can be used for prevention and control. Cultivation and management: This is a basic measure for plant protection. Through the improvement of cultivation, conservation and management, a series of technical measures are taken to prevent the production of environment conducive to pests. Soil disinfection: stacking culture soil should be fully fermented, we must clean the pasture regularly, remove weeds, eliminate the middle host of pests and overwintering sites. 3. Biological control: Use natural enemies to control pests. The natural enemies of flower pests are very abundant. There are ladybugs, grasshoppers, fly flies, and parasitoids. They must be fully protected, propagated, and utilized to eliminate pests. The use of bacteria to treat pests is to control pests using fungi, bacteria, viruses or their metabolites that can cause pests. 4. Physical and mechanical control: the use of light, color trapping. Using black light can induce phototaxis of pests. The use of yellow plate glue can trap and kill winged aphids in flower cultivation sites. The heat treatment method was used to expose the potted soil in the summer to eliminate the nematode in the soil.