W eiwei Disease and Pest Control Techniques and Methods
For many girls, the introduction of green plants and flowers for the prevention and control techniques and methods of W eiwei diseases and pests, let's take a look together!
W eiwei Disease and Pest Control Techniques and Methods
When planting W eiwei, it is necessary to strengthen topdressing, manage water properly, prevent excessive water in the field, increase humidity, clean the garden in autumn and winter, clear away dead branches and leaves, and burn them集中ly. After the onset of the disease, it is appropriate to spray powdery mildew and thiophanate-methyl and other agents for prevention and control. It is best to avoid using a single agent and rotate several agents instead. Pests can be controlled with aphid-cleaning net.
Common Diseases in W eiwei Planting
1. Powdery Mildew: Powdery mildew affects the growth of leaves, with a higher incidence rate in young leaves, and may also harm the growth of branches and flowers. In the early stage of the disease, white spots will appear on the diseased leaves, which will later become patches, reducing the quality of flowers and causing serious reduction in ornamental value. Severe cases can lead to plant death.
2. Brown Spot Disease: Brown spot disease is a common disease that often occurs during the growth of W eiwei. It can cause a large number of leaves to turn yellow and fall, affecting both ornamental value and flowering.
3. Sooty Mold Disease: Sooty mold disease harms the growth of leaves and branches. After the onset of the disease, black spots appear on the affected parts, similar to powdery mildew, the spots gradually expand and merge, and eventually, a black film appears on the leaves, obstructing photosynthesis, affecting the accumulation of photosynthetic substances, causing leaves to turn yellow, fall, and buds to differentiate.
Main Pests in W eiwei Cultivation
Speckled Aphid Pest: Speckled aphids are severe in May and June,吸取汁液 from young leaves, posing a serious threat to the growth of W eiwei trees.
Velvet Scale Pest: Velvet scale larvae mainly hide in the armpits of W eiwei flower buds, absorbing nutrients from leaves and branches, causing branches and leaves to turn black, leaves to dry and fall, which is disadvantageous to the growth of W eiwei. In addition, the excrement of this pest can trigger sooty mold disease, causing significant harm.
Prevention and Control of W eiwei Diseases and Pests
1. Powdery Mildew: Strengthen topdressing and water management during planting, prevent excessive water in the field, increase humidity, clean the garden in autumn and winter, clear away dead branches and leaves, burn them集中ly. After the onset of the disease, it is appropriate to spray powdery mildew agents for prevention and control. It is best to avoid using a single agent and rotate several agents instead.
2. Sooty Mold Disease: Strengthen management, control planting density, prune diseased and excess branches in time to improve ventilation and enhance tree vigor, fundamentally reducing the incidence rate. After the onset of the disease, remove diseased leaves in time, use thiophanate-methyl and other agents for prevention and control, and then do a good job in the prevention and control of aphids to prevent the transmission of pathogens.
3. Long Speckled Aphid: It is necessary to do a good job of cleaning the garden in winter, cut diseased and pest branches, prune appropriately, take them out of the field for incineration, destroy the overwintering habitats of eggs, clear the cracked bark layers at the branch forks to prevent egg overwintering, and after the outbreak of pests, use aphid-cleaning net and other agents for prevention and control to prevent the spread of the disease.
This article shares the specific introduction of W eiwei disease and pest control techniques and methods, hoping to bring some flower knowledge to flower enthusiasts.