The Methods of Preventing and Controlling Pest and Diseases in Narcissus
About the pests and diseases of narcissus, here are some small knowledge of flower cultivation. Let's introduce it to the netizens by the editor of the website.
In our daily cultivation of potted plants, pests and diseases have a significant impact on plants, so the prevention and control of pests and diseases is very important. What pests and diseases does narcissus have? Now let's introduce the pest control methods of narcissus by the website of the "Fortune Tree House."
What Pests and Diseases Does Narcissus Have?
Narcissus is one of the traditional famous flowers in China. During cultivation, narcissus often suffers from pests and diseases. The main pests are Thrips tabaci and narcissus fly. The main diseases are large brown spot disease, nematode disease, and leaf blight. Let's take a specific look at the pest control methods for narcissus.
The Methods of Preventing and Controlling Pests in Narcissus
Control of Thrips tabaci
Symptoms: Thrips tabaci mainly affects the flowers of narcissus. Adult insects usually bore into the flower, absorb sap, damage flower tissue, and cause the flower to wither and fall off rapidly after damage.
Control methods: For the control of Thrips tabaci, we mainly use drugs in the early morning, spraying 40% dimethoate emulsion or 80% dichlorvos emulsion 2000 times solution, once a week is effective.
Control of Narcissus Fly
Symptoms: Narcissus fly mainly affects the bulb. Its eggs are laid in the soil, and the larvae that hatch will invade the bulb of the narcissus, eventually causing the bulb to rot and the narcissus to die.
Control methods: The prevention and control of narcissus fly is very important. It should be carried out during the flowering period of narcissus, using carbon disulfide solution to water the narcissus.
The Methods of Preventing and Controlling Diseases in Narcissus
Control of Brown Spot Disease
Symptoms: Brown spot disease mainly affects the leaves and stems of narcissus. In the early stages of the disease, yellow, red, and brown spots appear, mostly in the middle and edges of the leaves, in a spindle shape. When the edge of the leaf is affected, it often causes leaf curling.
Control methods: In the early stage of the disease, you can use 75% carbendazim wettable powder 600-700 times solution, spraying twice a week, usually effective within a month.
Control of Nematode Disease
Symptoms: Nematode disease is one of the main diseases that affect narcissus. After the plant is infected, the bulb appears undamaged on the surface, but it is already damaged or rotten inside, eventually causing the plant to die.
Control methods: For the control of nematode disease, we should remove the rotten part clean and apply a protective agent to its roots, and disinfect the soil.
Control of Leaf Blight Disease
Leaf blight disease mainly affects the leaves of narcissus. Usually, it starts from the tip of the leaf, with initial symptoms being a faded green yellow spot that spreads inward in a fan shape, with a yellowish-green halo around it, and later the leaf dries up and black granules appear.
Control methods: For the control of leaf blight disease, it is first necessary to remove the diseased leaves and wash them with potassium permanganate solution. In the early stage of the disease, you can spray 50% zineb 1500 times solution.
The above content provides a detailed introduction to the pests and diseases of narcissus and the methods of preventing and controlling pests and diseases. Through the above introduction, we can better handle the problems encountered when cultivating narcissus.
The above introduction of the pests and diseases of narcissus, the methods of preventing and controlling pests, and the methods of preventing and controlling diseases of narcissus, if it can be helpful to you, remember to visit the website often!