Diseases and insect pests of Paranea japonica and their control methods
As a characteristic bulbous flower with both ornamental and medicinal values, Parian flowers often encounter threats from pests and diseases during their growth. This article systematically combs the characteristics of the four common pests and diseases and corresponding control plans, and attaches high-definition symptom diagrams to help flower friends achieve scientific prevention and control. Analysis of bacterial soft rot on the prevention and control of halanopsis japonica disease The disease is caused by Erwinia and invades tubers through mechanical damage or insect bite wounds. Infected tissue secretes pectinase to break down cell walls, forming yellow-brown mucil-like decaying patches, which are accompanied by a stench when humidity is high. In addition to the chemical control described in the article, it is recommended to use Trichoderma biologics to irrigate roots before the rainy season to enhance resistance. In addition to chemical control, attention should be paid to the comprehensive control plan: ① Select disease-free seed balls and use potassium permanganate disinfection tools ② Keep drainage smooth to avoid stagnant water ③ Rotation of onions and garlic plants in the affected area to inhibit the pathogen, the flower pest prevention and control Guidelines for Spodoptera litura Prevention and control The insect occurs 4-6 generations a year, and the larvae are gluttonous and can chew the entire leaf within 3 days. In addition to chemical control, it is recommended to install solar insecticidal lights, hang pheromone traps, and regularly remove surrounding weeds to destroy wintering sites. Coping strategy Lycoris is larvae have strong borers and can be controlled in time by observing the sieve holes in the leaves. It is recommended to apply 3kg of 5% chlorpyrifos granules per mu during shallow farming in early spring for soil treatment, and hang yellow sticky insect boards to monitor adult activities. Grub eradication plan, diseases and insect pests of the flower and control methods
In addition to chemical prevention and control, sweet and sour liquid (brown sugar: vinegar: wine: water =3:4:1:2) can be made to trap and trap adults, or a 5cm-thick plant ash isolation layer can be laid on the bottom of the planting hole. Beauveria bassiana preparations are recommended for biological control, with a control effect of more than 85% on larvae. The construction of a systematic protection system suggests establishing a "three-stage" protection: pre-planting ball disinfection + growth period biological prevention + precise application during the outbreak period. Cooperate with the monthly application of seaweed fertilizer to enhance plant stress resistance, and keep the planting spacing above 20cm to ensure ventilation and light transmission.
By integrating IPM strategies that integrate physical control, biological control and chemical intervention, the incidence of pests and diseases in Anita japonica can be effectively reduced. Regularly observe the status of the plants and identify problems in time combined with the diagnostic maps provided in this article, so that the flower can maintain a healthy growth state and bloom with the amazing beauty of Manjusahua.