What if the fortune tree has spots?
As a popular choice for home green plants, brown spots on the leaves of Fortune Tree often confuse conservators. These spots not only affect ornamental value, but may also imply plant health problems. This article will systematically analyze four common inducements and corresponding solutions from disease prevention to maintenance details. 1. Disease control and treatment plan 1.1 Leaf spot disease identification and management When small round brown spots are found on the leaves and the edges gradually spread into gray and white halos, leaf spot disease can be diagnosed. The fungal disease is most likely to erupt when humidity is>70% and temperature is 20-28℃. Three steps are needed immediately: 1. Trim the infected site to 3 cm away from healthy tissue 2. Alternate spray with carbendazim (1:800) and mancozeb (1:1000) 3. Maintain daytime ventilation for more than 4 hours 1.2 Prevention of recurrence Measures to irrigate roots with EM bacterial solution every month after cure, combined with foliar spraying potassium dihydrogen phosphate (1:1000), can improve plant disease resistance. It is recommended to carry out preventive spraying of Bordeaux mixture once in spring and autumn. 2. Optimization plan for maintenance and management 2.1 Scientific fertilization principles The leaf spots caused by burning roots with concentrated fertilizers are mostly scorched and withered, so fertilization needs to be stopped immediately and diluted with water. The strategy of "thin fertilizer and frequent application" is adopted during the recovery period: -Spring and autumn: special fertilizer for leaf-viewing plants for 15 days/time-Summer: slow-release fertilizer for 30 days/time-Winter: stop applying fertilizer 2.2 Light control techniques Strong light burn spots mostly appear on the tip of the leaves and sunny sides, showing as yellow chlorotic spots. It is recommended to set up a double sunshade net to maintain the light intensity of 15,000 - 25,000 Lux. Direct light can be accepted for 2 hours in the morning, and a scattered light environment must be ensured at noon. 2.3 Temperature control points: Frostbite spots are often accompanied by leaf wilting, and an ideal temperature of 15-28℃ needs to be maintained. Triple insulation method can be used in winter: 1. Floor mat 3cm foam board insulation 2. Wrap insulation cotton around the trunk 3. A set of transparent plastic bags creates a small greenhouse. Through a three-dimensional solution of systematic diagnosis + precise processing + continuous maintenance, combined with leaf cleaning once a month (beer: water =1:50 wiping), 95% of leaf spot problems can be effectively prevented. Remember the "three inspections" principles: check leaf back insect pests, soil humidity, and environmental ventilation, so that the fortune tree always remains oily and healthy.