Pests and solutions to coldweed
As a representative species of orchid plants, Adenia is favored by gardening enthusiasts for its elegant flower appearance. However, the growth characteristics of thick leaves and humid environment make it vulnerable to pests. This article systematically combs the characteristics and control systems of four common pests to help you build healthy plants. Scale insects: Leaf killer attack and defense dual form recognition skills. Black-brown hard-shell species often attach to stems, while white-powder species prefer aggregation on the back of the leaves. The secretion of honey dew by insects can easily cause coal pollution disease, forming a black mold layer that hinders photosynthesis. The initial stage of the progressive treatment plan uses physical removal method: use a soft brush dipped in 75% alcohol to gently brush the insect body. In the middle and late stages, 40% omethoate emulsifiable concentrate was sprayed on the leaves at 1000 times, and 15% Tiemeke granules were buried in the soil to form long-term protection. Red spider: High-temperature nemesis coping technique macro observation tips need to be vigilant when needle-shaped chlorosis appears on the front and back of the leaf. With the help of a magnifying glass, you can see the red insect body moving. When pests are severe, netting hinders the development of new buds. Temperature and humidity control strategy Maintaining environmental humidity>65% can inhibit reproduction, and use warm water below 43℃ to wash the back of leaves. Alternate use of 20% dicofol wettable powder and 10% phenbutane emulsifiable concentrate to prevent drug resistance. Mollusks: The night raid and defense network environmental transformation first removes the surrounding gravel and dead leaves to cut off the hiding place, and lays diatomite around the basin to form a physical isolation zone. Manual capture at night combined with beer trap pots has a remarkable effect. The chemical prevention and control combination applies 6% polyacetal granules before rain, and sprays 50% phoxim emulsifiable concentrate at 1000 times in the morning. Focus on treating the contact between the base of the plant and the medium. Thrips: Invisible crisis resolution method, life cycle interruption method, medium high-temperature steam disinfection kills eggs, and blue sticky insect boards are hung to monitor adult density. During the flower bud differentiation period, spray 5% acetamiprid EC at 2000 times in advance to form a protective layer. The three-dimensional prevention and control system adopts a trinity plan of root irrigation + spraying + environmental disinfection: 10% imidacloprid wettable powder is used to irrigate the roots, 25% thiamethoxam water dispersible granules are sprayed on the leaves, and a fumigator is used to comprehensively kill insects.
Pest control requires implementing the principle of "prevention first, comprehensive prevention and control." It is recommended to conduct systematic inspections every month and establish a temperature-humidity-light linkage monitoring system. Plant resistance can be enhanced through reasonable fertilization, so that colandia can maintain a healthy growth state while reducing the use of chemicals.