What to do when the leaves of the wealth tree turn yellow, prevention and control skills for yellowing leaves of the wealth tree.

How to deal with the yellowing leaves of the wealth treeThe wealth tree, as a common indoor ornamental plant, has a problem of yellowing leaves that troubles many growers. This not only affects the ornamental value but also serves as a health alert from the plant. By systematically analyzing key factors such as irrigation, lighting, and nutrient supply, we have compiled scientific and effective solutions.I. Water Management: Basic Element for Preventing Yellow Leaves1.1 Standard for Watering Amount ControlThe succulent roots are sensitive to waterlogging, it is recommended to maintain soil moisture between 40-60%. Water every 7-10 days in spring and autumn, shorten to 5-7 days in summer, and extend to 15-20 days in winter. Bamboo stake method: Insert a bamboo stake into the potting soil for 2 hours and observe; if the moist part does not exceed 1/3, it needs watering.1.2 Emergency Treatment PlanStop watering immediately and loosen the soil for aeration if waterlogging is detected, and replace the medium if severe. It is recommended to use a mixed matrix of ceramsite + decomposed leaf soil + perlite (proportion 2:3:1) to ensure good drainage.II. Light Control: Guidelines for Optimizing PhotosynthesisThe ideal light intensity is 800-1500 lux, which can be measured with a professional light meter. Yellow and white mottled leaves indicate excessive light, and need to be moved to 1.5 meters away from the south window; if the leaves are dull and yellow, artificial light sources need to be supplemented, with 3-4 hours of additional lighting per day.III. Nutrient Supply: Comprehensive Strategy for Scientific Fertilization3.1 Fertilizer Ratio PlanDuring the growing season (April-September), apply a water-soluble fertilizer with N-P-K = 10-6-4 monthly, and stop fertilizing during the dormant period. It is recommended to use ripe soybean cake fertilizer as a base fertilizer, combined with 0.1% monopotassium phosphate foliar spray.3.2 Identification of Deficiency SymptomsOld leaves turning yellow are usually due to nitrogen deficiency, while new leaves turning yellow are often due to iron deficiency. It is recommended to replace the top 5 cm of potting soil every spring and add 10-15 slow-release fertilizer granules.IV. Pest and Disease Control: New Proposals for Biological Control4.1 Identification and Treatment of PestsScale insects can be physically removed with a 75% alcohol cotton swab, and red spiders need to be sprayed with neem oil solution (concentration 1:200). It is recommended to wipe the back of the leaves with garlic extract (100g/500ml water) monthly for prevention.4.2 Response Plan for DiseasesFor the early stage of root rot, apply a 50% carbendazim 800x solution to the roots, and for leaf spot disease, promptly remove the affected leaves and spray with mancozeb. Maintain proper ventilation and keep the relative humidity between 55%-65%.By systematically adjusting the maintenance plan, new leaves can be seen to sprout healthily in about 2-3 months. It is recommended to establish a maintenance log, recording key data such as watering time and fertilization amount, and dynamically optimize the management plan based on the plant's growth status.