Ginger flower is a very beautiful flower. The white flower looks pure and cleans the air. It has the reputation of natural air freshener. The ornamental value of ginger flower is very high. It can be planted in the courtyard to watch. You can decorate your home with potted plants. Here you can share the common pests and diseases of ginger flower and its diagnosis and treatment.
Leaf virus disease
[Symptoms] The main damage to the leaves, the appearance of pale yellow linear coral on the leaf surface, the system of flowers and leaves.
[Pathogen] Cucumbermosaicvirus referred to as CMV, cucumber mosaic virus. Viral granules globular, transmission pathways and pathogenic conditions The virus overwinters on perennial perennial plants and is transmitted by aphids.
[Control methods] 1. Breeding and changing varieties of disease-resistant and high-yield varieties according to local conditions.
2. Strengthen inspections at the peak of local locust migration. Timely killing and preventing diseases, while excavating diseased plants to prevent the spread of infection.
3, the beginning of the onset of the beginning of spraying 3.95% virus Baker 600-800 times liquid, 20% hydrochloric acid, yin double or copper-copper wettable powder 500 times liquid or 5% bacteria poison clear wet powder 500 times liquid, 20% virus Ning Water-soluble powder 500 times liquid, 0.5% anti-toxic agent No. 1 water agent 250 times liquid, l times every 10 days, depending on the condition, continuous prevention and control 2 to 3 times.
anthrax
[Symptoms] Harmful turmeric, spring Amomum vulgaris, red bean stalks, etc., occur mostly on adult plants. The lesions start from the tip or leaf edge, and are initially dark green water-stained spots, which turn grayish white. It turns grayish brown, cloud-like, dark brown at the edges, and white at the center. When the humidity is high, many small black spots are formed on the lesion.
ã€pathogen】
It is caused by the infection of the genus Aspergillus spp., including Colletotrichumcapsici (Syd) Bulleret Bisby and C. gloeosporioides Penz.
[occurrence law] This disease occurs mostly in autumn and winter, the soil is thin, the base fertilizer is insufficient, the available nitrogen is too much, and the poorly shaded plots are heavier. The rainy and high-humidity diseases are contagious. Conidia are used as invasive and re-invasive inoculants, and spread by rain or water to invade the disease from wounds or orifices. In the south, especially in Guangdong, germs can be transmitted and transmitted in a variety of host crops in the field, with no obvious wintering period. It is easy to induce this disease when continuous cropping, low-lying wetland or partial application of nitrogen fertilizer is too prosperous.
[Control method]
1. Pay attention to finding resistant varieties.
2. Strengthen the cultivation and disease prevention work centered on fertilizer and water. Spray the foliar fertilizer at the right time to make the plant strong and not too prosperous, stable and stable, and coordinate the growth of the ground and underground rhizomes to reduce the incidence.
3. It can be sprayed with 50% carbendazim WP 500 times solution, 65% sensitized zinc 600-800 times solution, or 75% chlorothalonil 800 times solution.
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