According to the current base number of strains of rapeseed sclerotinia, the disease resistance and growth of rapeseed varieties, combined with the comprehensive analysis of weather conditions during the flowering period, it is expected that the occurrence of rapeseed sclerotinia will be moderate to heavy in this year. From the end of March to the beginning of April, the rapeseed from the south to the north of our province has entered the full flowering period one after another. It is also a critical period for prevention and control. All localities must fight the overall war against sclerotinia for the flowering period.
Trend Analysis 1. It is expected that S. sclerotiorum is moderate to overweight. There are three main points. The first is that the bacteria source meets the disease conditions. According to general surveys conducted from March 16 to 18, rape incidence was widespread, and the average leaf disease rate in the province was 2.68%. The second is poor plant disease resistance. This year, the main rapeseed varieties of our province are mainly Qinyou No.10, Qinyou No.7, Qinyou No.11, and Emu Oil 737, and the resistance to sclerotinia is not strong. After the beginning of spring, the rapeseed in some regions was affected by rain and snow, suffered freezing injury, poor stress resistance, uneven flowering period, and high risk of pathogen infestation. Third, weather conditions are conducive to disease epidemics. The flowering knots of rapeseed have more rain, rainfall, humidity in the field, high temperature, and the probability of disease and pandemic is high. There is a high probability of more rainy weather in the south of the Huaihe River in the first half of April of this year, and there is a high chance of widespread rain during large flowering seasons.
2. It is expected that rapeseed locusts will occur more seriously. The main basis: According to recent surveys in various regions, locusts are common in most areas, and most of the locust strains are in the range of 30% to 50%, which is higher than the same period of last year. The weighted average of 100 strains in the province is 698.74, and most areas are in the range of 200 to 1800. Head, a high of 2,500, is generally higher than last year. As the temperature rises further, the locusts will rapidly multiply and the amount will increase significantly.
The prevention and control opinions are cleared in time to reduce the humidity in the field and reduce the occurrence of disease. Adhere to the "catch the appropriate period, active application of pesticides, mixed fertilizer spray, both diseases and pests," the prevention and control strategy, in the early stage of rape blossoms, that is, the main stem of flowering plant rate of 80%, the first branch of the flowering branch rate of 50% when the full Drug control, the occurrence of heavy sclerotinia or aphid field, 5 to 7 days after the second prevention. Sclerotinia can be used for prochloraz, procymidone, sclerotin net, iprodione, carbendazim and other drugs, for the aphid can use pymetrozine, anti-Qiwei, acetamiprid and other drugs. During the flowering period of the rapeseed field, it is necessary to increase the amount of water. The sprayer mists the amount of water from 20 to 30 kilograms per mu, and the manual low-capacity spray sprays 40 to 50 kilograms of water per mu. The rapeseed plants are sprayed thoroughly and try to reach the plants. Spray in the lower part to improve the control effect. Within 3 hours after the drug, the rain will be treated in time.
Trend Analysis 1. It is expected that S. sclerotiorum is moderate to overweight. There are three main points. The first is that the bacteria source meets the disease conditions. According to general surveys conducted from March 16 to 18, rape incidence was widespread, and the average leaf disease rate in the province was 2.68%. The second is poor plant disease resistance. This year, the main rapeseed varieties of our province are mainly Qinyou No.10, Qinyou No.7, Qinyou No.11, and Emu Oil 737, and the resistance to sclerotinia is not strong. After the beginning of spring, the rapeseed in some regions was affected by rain and snow, suffered freezing injury, poor stress resistance, uneven flowering period, and high risk of pathogen infestation. Third, weather conditions are conducive to disease epidemics. The flowering knots of rapeseed have more rain, rainfall, humidity in the field, high temperature, and the probability of disease and pandemic is high. There is a high probability of more rainy weather in the south of the Huaihe River in the first half of April of this year, and there is a high chance of widespread rain during large flowering seasons.
2. It is expected that rapeseed locusts will occur more seriously. The main basis: According to recent surveys in various regions, locusts are common in most areas, and most of the locust strains are in the range of 30% to 50%, which is higher than the same period of last year. The weighted average of 100 strains in the province is 698.74, and most areas are in the range of 200 to 1800. Head, a high of 2,500, is generally higher than last year. As the temperature rises further, the locusts will rapidly multiply and the amount will increase significantly.
The prevention and control opinions are cleared in time to reduce the humidity in the field and reduce the occurrence of disease. Adhere to the "catch the appropriate period, active application of pesticides, mixed fertilizer spray, both diseases and pests," the prevention and control strategy, in the early stage of rape blossoms, that is, the main stem of flowering plant rate of 80%, the first branch of the flowering branch rate of 50% when the full Drug control, the occurrence of heavy sclerotinia or aphid field, 5 to 7 days after the second prevention. Sclerotinia can be used for prochloraz, procymidone, sclerotin net, iprodione, carbendazim and other drugs, for the aphid can use pymetrozine, anti-Qiwei, acetamiprid and other drugs. During the flowering period of the rapeseed field, it is necessary to increase the amount of water. The sprayer mists the amount of water from 20 to 30 kilograms per mu, and the manual low-capacity spray sprays 40 to 50 kilograms of water per mu. The rapeseed plants are sprayed thoroughly and try to reach the plants. Spray in the lower part to improve the control effect. Within 3 hours after the drug, the rain will be treated in time.
Drinking tea is a kind of drink originating in China made from the leaves or buds of the tea plant. Also refers to the leaves of the evergreen shrub tea tree that can be used for drinking tea, and drinks made with these leaves, and later extended to all herbal tea made with plant flowers, leaves, seeds and roots, such as "Tieguanyin" and so on.
Tea, as a famous health drink, is the contribution of the southern Chinese people to the Chinese food culture and the Chinese people's contribution to the world food culture
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