Nail orchid disease and pest control
As a兰花 variety loved by gardening enthusiasts, nail orchid has become a new favorite for home green plants with its elegant flower posture. However, problems such as yellowing leaves and rotting rhizomes often困扰 planters, how to identify and control diseases and pests has become the key to maintenance. This article analyzes the three major core diseases to help you build healthy plants.
White绢病 control: soil management is the key
Early infection characteristics
In the high-incidence period of plum rain season, white菌丝 like cobwebs first appear at the base of leaves, and the whole plant is wrapped in white绢布 when severe, accompanied by a pungent moldy smell.
Systematic treatment plan
Immediately isolate the diseased plant and replace it with high temperature disinfected pine bark matrix, and the old soil needs to be mixed with quicklime and exposed to the sun for three days. It is recommended to pour the root with carbendazim solution every month and keep a 3cm陶粒 drainage layer at the bottom of the pot.
(T-J) Disease prevention and control: the use of drugs has a trick
Disease spot development process
The initial brown sunken spot at the tip of the leaf will expand into concentric circles, and orange-red sporophore piles will be produced when humidity is >80%, eventually leading to leaf carbonization and falling off.
Scientific medication cycle
Alternating the use of benz醚甲环唑 and mancozeb, focusing on spraying the back of the leaf wrinkles. cooperating with potassium dihydrogen phosphate leaf fertilizer to enhance disease resistance, and using bavistin smoke agent for space disinfection before the rainy season.
Scale insect killing: double管齐下 of physical and chemical
Pest identification points
White waxy scale can be seen in the leaf axils, the excreted honey dew induces soot disease, and the insect body shows a cottony accumulation when dense.
Step-by-step treatment strategy
Use a toothpick to scrape and cooperate with an alcohol cotton swab wipe in the initial stage, and select螺虫乙酯 + organic silicon synergist when severely infected, focusing on spraying in the evening. It is recommended to synchronize the hanging yellow sticky insect board to monitor the insect density.
By establishing a regular inspection system, cooperating with environmental regulation (keeping the humidity between 55%-70%, 4 hours of scattered light every day), and cooperating with the control plan in this article, nail orchid can be kept away from the threat of diseases and pests. Remember to apply EM bacteria to improve the soil microecology every quarter, which is the fundamental way to achieve sustained and healthy growth.