Raw Powder,Raw Herb Powder,Pine Pollen Powder,Panax Ginseng Powder,Zhi mu Powder Xi'an JCF Herb Technology Development Co., Ltd , https://www.jcfherb.com
From the name of gray mold, it can be thought that the important feature of the disease is that the disease department forms a relatively dense layer of gray mold, which is a conidium of pathogens. They can spread along with airflow and rain, infecting plant seedlings, stems and leaves, and flowers. It causes rot.
Botrytis cinerea is a kind of weak parasite that can't directly infect healthy green tissue and can only be infected by wounds and flower organs. Bacteria often invade and reproduce at the beginning of flowering, and then show symptoms in the flower peduncle or part of the fruit pedicle. The incidence of the leaf often starts from the edge or tip. At the same time, falling flowers and falling fruit also play an important role in disease transmission. Tomatoes can also be infected with germs, preferably 0.1% of procymidone (Siklyl) is added to the prepared 2,4-D dilution.
Botrytis cinerea prefers cold and humid climates, and pathogenic infections require low temperatures of 13°C to 24°C and humidity of more than 90%. Water film is a necessary condition for spore germination, and this winter and spring climate is more suitable for gray mold, we must pay attention to prevention and treatment.
According to the above characteristics of gray mold, first in the cultivation and management, we should pay attention to control the temperature and humidity. Specific practices such as selecting watering in the morning or in the morning, controlling the number of watering, appropriately prolonging the exhalation time, etc., adjusting the orientation, spacing, removal of old leaves, control of weeds to increase ventilation, light transmission, and reduction of diseases.
Secondly, because the pathogenic bacteria on the diseased plants are mixed in the soil for winter, it is the main source of bacteria in the second year. Therefore, pastoral hygiene, ploughing and removing crops, removing diseased fruits, diseased leaves, concentrating fertilization and implementing crop rotation are important measures for reducing germs.
The third is to conduct chemical control in a timely manner. From flowering to fruit ripening, check the condition of the disease, and emphasize the prevention and treatment of pharmaceuticals. The best choice of dosage form is powder or aerosol. Such as: 10% procymidone (sulfacin) aerosol, 45% chlorothalonil aerosol, smoked for 3~4 hours, or sprayed 5% chlorothalonil, 10% chlorpyrifos dust, or sprayed 50% Iprodione (promethium), 50% procymidone (sulfacin), thiophanate-methyl (thiophanate-methyl) 1000 times, 50% carbendazim 500 times and other agents. The use of carbendazim, thiophanate-sulfur, or sulfasyncarb for several times can be used in combination with acetylcarbamyl. To avoid drug resistance, it is advisable to alternately use different series of agents.
Controlling Botrytis Cinerea to Control Temperature and Humidity
Botrytis is a fungal disease that can harm hundreds of cultivated crops. It often occurs on vegetable crops such as tomatoes, peppers, cucumbers, eggplants and causes serious damage.