Control of insect pests and diseases
As an "air purifier" in the home green plant industry, spider orchids often turn yellow and withered due to pests and diseases. This article focuses on the 4 common diseases and 3 types of pests, and systematically analyzes the disease characteristics to control plans to help you create healthy and lush spider green plants. Root rot prevention and control plan Disease identification and spread rules The seedling stage is most susceptible to infection, and brown spots appear on the root system in the early stage. As the disease spreads, the water absorption function is lost, causing the entire plant to wither rapidly. Data shows that 80% of sudden death cases of spider plants are related to root rot. Comprehensive control strategy Before sowing, soak seeds in warm water at 50 ° C for 20 minutes, and use Tuzunte to dress seeds. It is recommended to use ceramite as the base for potted plants and mix perlite to improve breathability. Change the pot immediately after the onset of the disease, and add seaweed essence when irrigating the roots with Genfuning solution can enhance the efficacy. Analysis of the characteristics of the disease in the guidelines for dealing with white silk disease The appearance of spider hyphae in the rhizome is a typical symptom, and the incidence rate in the plum rainy season reaches 65%. The pathogen can survive in the soil for 3-5 years, and continuous control measures are needed. Environmental control techniques use bottom irrigation to keep the surface of the basin soil dry. Use bamboo sticks to loosen the surface soil every month to enhance breathability. Prophylactic spraying of garlic extract, natural bactericidal ingredients can reduce the risk of infection. The systematic control of high-risk plants for stem rot disease identifies plants older than 3 years, and the incidence rate reaches 42%. In the early stage of stem browning, the focus can be scraped with a blade and charcoal powder can be applied to isolate the disease. It is recommended to replant every 2 years to maintain plant vitality. The key points of light management are to ensure that light is scattered 4 hours a day, and the flowerpot is rotated regularly to receive light evenly. Using a fill light to maintain a 12-hour light cycle in winter can significantly improve disease resistance. The leaf protection plan for the comprehensive management of spider plant pests and diseases (T-J) diseases adopts the "two sprays and one rub" method: potassium dihydrogen phosphate is sprayed every week to strengthen the waxy layer on the leaf surface, and the leaves are wiped with beer diluent every month. Remove the spot immediately if it is found, and apply Daknin cream to the incision to block the bacteria. Optimize air circulation using circulating fans to create a breezy environment, and keep the basin spacing above 30cm. It is recommended to combine it with plants such as asparagus and green radish to form an ecological barrier to reduce the chance of cross-infection. The three-dimensional pest control biological control system introduces ladybug seven-star to control aphids, and the surface of the basin soil is covered with diatomite to block nematodes. Self-made orange peel enzyme (orange peel: water =1:3 fermented for 7 days) sprayed every week can repel more than 80% of pests. Chemical control time is used to spray imidacloprid from 6 to 8 a.m., and use it to physically catch insects with sticky plates. Bagging and smothering for 2 hours after application can improve the efficacy by 30%. Focus on treating pest gathering areas such as leaf backs and basin edges.
Through the strategy of "putting prevention first, combining prevention and control" and scientific maintenance methods, the spider plant can be completely rid of the problem of pests and diseases. It is recommended to establish a maintenance log, record the watering and fertilization time, regularly check the back of the leaves with a magnifying glass, and detect and treat it early, so that the spider plant can continue to exert its air purification effect.