Cauliflower Pest Integrated Control Technology

Cauliflower, also known as broccoli, can be grown in open or protected areas. The main diseases during the whole growth of cauliflower include damping-off, blight, clubroot, black rot, downy mildew, black spot, and bacteria. Nuclear disease, soft rot; pests include aphids, diamondback moth, cabbage caterpillars, tobacco moths, and small tigers.

First, the main diseases

1, damping-off and blight (also known as black root disease). Bacterial damping-off and damping-off are fungal diseases and are common diseases in the cauliflower bed. The symptoms of damping-off are that the base of the seedlings of the seedlings is immersed in water and then turns into a yellow-brown, linear, dry, lodging; while the damping-off is an oval-shaped brown lesion that appears at the base of the shoot or at the bottom of the seedling, and the middle depression expands. One week around the stem, do not fold. Control methods: Pay attention to the seedbed water, and pour with 75% chlorothalonil 800 times.

2, clubroot disease (commonly known as root disease). The clubroot disease of cauliflower is caused by fungi and is a waterborne soil-borne disease. Symptoms of the main root infections were nodules. The incidence of lateral roots and fibrous root infections was mostly finger or globular or rod-shaped tumors. Diseases can be affected during the entire growth period. The disease can be invaded as early as the 2nd leaf stage, in which the disease at the seedling stage is heavier. Control methods: Application of disease-resistant varieties; rotation when conditional; cultivation of disease-free strong seedlings; pre-planting drug mix soil pond or sowing liquid after pouring pond, 2 leaf stage before pouring again; clean garden, disease strain Destruction of body concentration (living in deep pond burying); prevention and treatment of pesticides can be done with 70% black peony 500 times liquid pouring pond, or 2-3 days after transplanting, or on the same day, use Jiangenbao 5-8 kg per acre 10-20 kg of fine soil is applied to the pond and then watered, and then applied again 25-30 days later.

3, black rot. Black rot is a bacterial disease. Seeds can carry bacteria. In addition, the body fluids in the soil can spread and are mainly invaded by water holes and wounds. The condition was watery in the cotyledon, and the lesion showed a "V"-shaped lesion. The wound infection was light brown and the edge was yellow halo. Control methods: seed disinfection; cultivation of disease-free strong seedlings; rotation; clean gardens, concentrated destruction of diseased plant residues; timely spraying 50% of agricultural streptomycin sulfate or 49% of Kam Tin Koji 800 times spraying the pond.

4, downy mildew, black spot disease (also known as black mold). Both of these diseases are caused by fungi, and in the middle and late stages, the leaves are affected. The positive lesions of downy mildew are light green to yellow-brown and the back has white mold. Black spot occurs mostly on the outer leaves, turning from small dark spots to large, gray-brown, round spots, and the bands are less pronounced, producing black mold. Control methods: Use 69% Ank manganese or 20% propylthiocarbazole 800-1000 times spray control:

5, soft rot disease. Soft rot is a bacterial disease that occurs in the middle and late stages. Water-soaked spots appear at the base of the stem, and they rot and stench later. Control methods: timely spraying 50% of agricultural streptomycin sulfate or 49% of Kam Tin Jura 500 times.

6, Sclerotinia disease. Sclerotinia is a fungal disease that occurs in the middle and late stages. The initial immersion brown spots, soft tissue rot, the formation of black sclerotia. Control methods: timely spraying with 75% chlorothalonil 1000 times solution or 55% erythromycin 500 times solution.

Second, the main pests

(1) Locusts. Occurrence of sporadic cases was promptly sprayed with 10% of heroin, 10% of Bidan 1500 times liquid, and bacteriophage. (2) Plutella xylostella and Pieris rapae. Occasionally sporadic cases were sprayed with 10% Fuxian and 1% proppant 1000 times liquid. (3) Small tigers. Early seedling damage, timely control with 10% diazinon 1000 times pouring pond.

Third, comprehensive prevention and control. Make full use of local agricultural, physical and other technical measures, such as the application of disease-resistant varieties, seed disinfection, cultivation of disease-free strong seedlings, strict management, clean gardens and other technologies. On this basis, the disease is mainly prevented, pests are tested for insect pests, and pollution-free pesticides (low-toxicity, low-residue, bio-sourced pesticides) are used in a timely manner to control the disease at the initial stage of the occurrence of damage, and pest control is carried out at the stage of spotting. Prevent and control the use of pesticides that are highly toxic, high in residue, and prohibit the use of vegetables (such as carbofuran, phorate, iron meth, methamidophos, etc.), and strive to produce high-quality, safe, and stable production of pollution-free vegetables.

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