rice blast Learn more about rice blast
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Rice blast affects rice quality how to control rice blast
Rice blast affects rice quality how to control rice blast
2018-07-14 -
How to control rice panicle blast? When is the best time to apply? How to judge?
According to the recent field monitoring results of rice blast rural monitoring networks in Heilongjiang Province, combined with comprehensive analysis of rice planting varieties, resistance, field growth, cultivation management and meteorological conditions, it is predicted that there is a risk of recurrence of rice panicle blast in Heilongjiang Province this year. that
2020-11-09 water rice panicle neck blast how control best application time yes -
How to control rice panicle neck blast caused by white panicle or deflated grain
How to control rice panicle neck blast caused by white panicle or deflated grain
2018-07-14 -
Rice disease
1. Rice blast (1) damage characteristics: Rice blast, also known as rice fever, commonly known as fire blast, hanging head blast, neck-choking blast and so on, is one of the most popular and harmful fungal diseases in the world, which mainly harms the aboveground part of the host plant. Due to the different damage period and position, it can be divided into seedling blast, leaf blast, ear neck blast, branch blast, grain blast and so on. The host range is many kinds of Gramineae plants, such as rice, wheat, horse tang and so on. Magnaporthe grisea overwintered mainly on diseased rice straw and was infected in rice field in the second year. The spread of bacteria mainly depends on the wind.
2019-01-16 -
Common Rice Diseases and their Control
In the whole growth period of rice, the common diseases are rice blast, bacterial leaf spot, bacterial blight, sheath blight, rice false smut and so on. The main results are as follows: (1) Rice blast can occur from seedling to heading. According to the symptoms of the disease in different growth stages and different parts, rice blast can be divided into seedling rice blast, leaf rice blast, node rice blast, panicle rice blast and grain rice blast. 1. The main symptoms (1) seedling rice blast: the diseased seedlings turn gray-black at the base of the stem near the soil surface, and the upper part is reddish brown, which makes the whole seedling curl and die. (2) Leaf rice blast:
2019-01-16 -
The latest course of techniques and methods for Prevention and Control of Rice blast in Rice planting
Rice blast is mainly divided into leaf blast and panicle and neck blast, is one of the important rice diseases, can cause a substantial reduction in yield, serious yield reduction of 40% to 50%, or even no grain harvest. 20% tricyclazole wettable powder 100 g / m mu or 75% tricyclazole wettable powder for prevention and control of leaf rice blast
2020-11-10 The latest rice planting rice blast control technology methods tutorials -
Occurrence and control of rice blast and rice planthopper
First, the occurrence of rice blast: Rice leaf blast has appeared in Helan, Qingtongxia and other places. The initial period is June 13, about 10 days earlier than last year. Especially after the rainfall on July 7 and 12, the humidity in the field is relatively high, which is very beneficial to the development of leaf blast. The average rate of disease fields in the recent general survey of Qingtongxia is 16.7%.
2018-09-13 -
Occurrence and Control of main Rice Diseases and pests in Gejiu City
1. Rice planthopper 1. damage characteristics: Rice planthopper, also known as white mosquito, is a migratory pest with the characteristics of long-distance migration and outbreak. The common ones are gray planthopper and white-backed planthopper. It occurs in the rice area of the city, mainly harming rice, followed by wheat and corn, but also parasitic on grass and other Gramineae weeds. The adults and nymphs clustered to suck the sap on the base and leaves of the rice clump, and the injured part showed a long brown spot. In severe cases, the lower stem blackened and the whole plant withered. 2. Living habits: there are 4 generations in a year, from the end of April to the beginning of May.
2019-01-16 -
Control techniques of "two Diseases and three pests" in Rice
Rice two diseases and three insects refer to rice blast, sheath blight, rice stem borer, rice planthopper and rice red spot black foam cicada, which do great harm to rice and should be prevented and controlled. Rice blast is caused by long-term irrigation of deep water or excessive drought and partial application of nitrogen fertilizer. There are three susceptible stages in rice life, namely, seedling stage, heading stage and heading stage. Panicle neck blast has the greatest effect on rice yield, which should be prevented as early as possible at break stage and full heading stage. Rice blast is divided into seedling blast, leaf blast, node blast, panicle blast and grain blast. Rice blast
2019-01-16 -
What is rice leaf blast? How to prevent and cure it?
The blast that occurs on rice leaves is called leaf blast. The control of rice leaf blast should run through the whole growth period of rice, because leaf blast can occur in the whole growth period, and the damage is more serious from tillering to jointing stage, and the epidemic of leaf blast directly affects the normal growth of rice.
2020-11-09 Rice leaf blast what is it should how control blast disease -
Prevention and control techniques of rice blast in rice planting
Prevention and control techniques of rice blast in rice planting
2018-07-01 -
The media said that the failure of yield reduction was not due to the epidemic of rice blast in super rice.
[special articles on Finance and Economics] the failure to reduce the yield of super rice does not lie in the loss of yield and harvest of ten thousand mu of super rice in Anhui Province half a year ago, which has aroused the strong concern of public opinion on super rice. However, according to a reporter from Caijing, the local epidemic of rice blast was seduced in this incident.
2016-03-20 The media said reduced production no harvest wrong not in super rice rice blast [ -
What is rice leaf blast? How to prevent and cure?
What is rice leaf blast? How to prevent and cure? Rice leaf blast is a common disease, farmers should pay attention to careful identification. The disease occurs on the leaves of seedlings or adult plants after the three-leaf stage, generally from tillering to jointing stage, and the disease spots on the leaves are often due to weather and quality.
2020-11-08 Rice leaf blast what is how control rice -
Pingtech responds to the query about the failure of super rice harvest: Rice blast caused by historical low temperature
Academician Yuan Longping inspects the growth of super hybrid rice in Shucheng County, Anhui Province on July 30, 2013. Photo / CFP recently, Liangyou 0293, a super rice of Longping Hi-Tech Company, suffered a large-scale harvest failure in Anhui, a major agricultural province, due to the impact of rice blast. Affected farmers questioned seed production.
2016-03-20 Ping Hi-Tech response Super Rice No harvest doubt History low temperature -
Super rice harvest is accused of concealing the defect Longping high-tech said that the weather is abnormal.
According to Southern Weekly, Liangyou 0293, a super rice of Yuan Longping Agricultural Hi-Tech Co., Ltd. (hereinafter referred to as Longping Hi-Tech, 000998Magi SZ), suffered a large-scale harvest failure in Anhui due to blast, and affected farmers questioned the involvement of Longping Tech, a seed production enterprise.
2016-03-20 Super rice no harvest accused concealment defect Longping high-tech said department -
How does grain crop rice get white ear disease to do? When will it happen? How did it happen? How to prevent it? What kind of medicine can be cured?
Rice white panicle disease is a common disease after heading, which occurs in all planting areas, and this disease will seriously affect the yield and reduce the benefit, so during the planting period, we must strengthen the management technology, then what to do if rice gets white panicle disease? When will it happen?
2020-11-09 Food crops rice get white ear disease what to do what? -
What are the common diseases of rice in cash crops? What kind of medicine should I take? How to prevent and cure it?
Rice is not only a kind of herbaceous rice, but also the most important and oldest kind of grain in rice. It belongs to direct cash crops. What are the common diseases of rice? What kind of medicine should I take? How to prevent and cure it? Let's learn more about it. During the whole growth period of rice
2020-11-09 Cash crops rice common diseases there which what -
Occurrence and control of rice diseases and insect pests in recent years
Since July, our city has encountered continuous overcast rain and high temperature weather after rain, which is very beneficial to the occurrence of diseases and insect pests in the late stage of rice. At present, most of the rice in our city enters the booting stage to heading stage, which is the susceptible period of rice diseases and insect pests. On August 7, our station conducted field investigation in Tangdian, Datun and other places. Rice blast, sheath blight and Cnaphalocrocis medinalis all occurred and needed urgent control. The specific conditions are as follows: Rice blast: leaf blast was found on Yunhui 290 planted in Datun Xintile-house, with a diseased leaf rate of 3.6% and a disease index of 0.75, covering an area of 2 mu. sheath blight
2019-01-16 -
What are the diseases and insect pests of rice?
What are the diseases and insect pests of rice? Please introduce the control methods of rice diseases and insect pests, such as rice blast, sheath blight, rice stem borer, rice planthopper, rice red spot black foam cicada, which are harmful to rice and should be paid attention to. Control methods can refer to the following methods: Rice blast: long-term irrigation in deep water or excessive drought.
2018-07-18 -
Classification standard and control method of rice blast
Grading standard leaf plague: 1 sporadic occurrence, careful investigation can see the disease 2 slightly more, the disease leaves concentrated in the lower 3 widespread, the disease leaves concentrated in the middle and lower 4 more serious, the disease leaves concentrated in the middle and upper, a small amount of pond 5 serious, there are obvious pond...
2018-09-13