Broccoli Disease and Pest Control Methods and Technical Measures
Let's talk about the common diseases and major pests in broccoli cultivation, as well as some tips for the prevention and control of broccoli diseases and pests. Let's take a look together!
Common Diseases in Broccoli
The common diseases during broccoli cultivation are猝倒病 (sudden collapse disease), 立枯病 (root rot disease), 霜霉病 (downy mildew), 黑斑病 (black spot disease), and bacterial black rot, among others. Soft rot mainly occurs during the heading stage, starting from the outer or bottom layer of leaves, which become watery, and the outer leaves gradually wither. Black rot disease affects the growth of leaves and stems.
Major Pests in Broccoli Cultivation
The common pests that appear during broccoli growth are diamondback moths, caterpillars, and aphids. The control methods are reasonable layout and removal of field residues.
Caterpillar larvae can eat the leaf flesh, leaving the epidermis, and in severe cases, affect the quality and yield of broccoli. Aphids吸食 (suck) the sap of the plant, causing the leaves to curl and deform, resulting in poor plant growth, affecting the wrapping, and can also secrete honeydew, spreading various viruses, causing harm far beyond the aphids themselves.
Broccoli Disease and Pest Control
1. When planting broccoli, choose disease-resistant varieties, arrange crop rotation reasonably, clean the garden, and as soon as a diseased plant is found, pull it out early and take disinfection measures. If there is pest damage, use black (white) daylight lamps to attract and kill pests.
2. Begin spraying with copper amino acid, propineb-aluminum, kasugamycin, and agricultural streptomycin at the initial stage of disease in adult plants, spray once every 7-10 days, and continue to control for 2 to 3 times. Chemical preparations are usually used for prevention and control.
3. Since aphids mainly hide in the contracted parts of the heart leaves and the back of the leaves, it is difficult to spray the medicine completely, so careful and detailed spraying is required. It is also recommended to choose pesticides with contact killing, systemic absorption, and fumigation effects.
That is all for the introduction of the major pests and common diseases in broccoli cultivation, as well as the methods for the prevention and control of broccoli diseases and pests. These are provided as reference suggestions.