-
Rice Cultivation: How to Control Pests and Diseases in the Mid-to-Late Stages of Rice?
How to control pests and diseases in the mid-to-late stages of rice? Please explain the methods in detail. The main pests and diseases that need to be controlled in the mid-to-late stages of rice are rice blast, bacterial leaf blight, stem borers, and planthoppers. You can refer to the following methods for control: (1) Control of rice blast. During the jointing and tillering stage of rice, when central diseased plants appear in the field (early July), apply per mu...
-
Rice pests and diseases: How do you control common rice pests and diseases?
How do you control common rice pests and diseases? Please provide an introduction and guidance on how to control the common rice pests and diseases: rice thrips, leaf roller (rice skipper), rice leaf roller, and rice planthopper. For detailed control methods, you can refer to the following methods: 1. Rice thrips. Rice thrips are very small, and the adults are dark brown, winged, and crawl...
-
How to control rice stem borers? Rice pest and disease control methods
How to control rice stem borers? Please explain the control methods in detail. Rice stem borers can be controlled by referring to the following methods: 1. Update rice varieties: Reduce or eliminate a few especially susceptible varieties to reduce the pressure for chemical control and the base population. 2. Flooding to kill pupae: Because newly hatched Chilo suppressalis larvae damage the rice leaf sheath...
-
Imported cotton prices are rising, and China's cotton prices are expected to rise steadily this year
As for cotton prices at the end of this year, Science Xingnong is still optimistic. This view is not a personal assumption. In the recently released "China Agricultural Industry Development Report" by Mei Xurong, vice president of the Chinese Academy of Agricultural Sciences, it was pointed out that...
-
Which pesticide is effective for controlling the rice leaf roller?
Which pesticides are effective against the rice leaf roller? Please give an introduction. The rice leaf roller, also known as the rice leaf roller worm, commonly called the leaf scraper, white leaf worm, leaf folder, etc., is a major pest during the rice growing period. This pest damages rice as larvae, binding leaves into longitudinal rolls, hiding inside and chewing the upper epidermis and mesophyll; the symptom is that the damaged leaves...
-
What insecticide works well to control the rice leaf roller?
What insecticide should be used to spray the rice leaf roller? Please give an introduction. The rice leaf roller's occurrence is characterized by early immigration, many peak generations, and large moth numbers, with the fifth (3rd) and sixth (4th) generations occurring continuously and severely, causing heavy natural damage. Because current high-yield cultivation uses large amounts of nitrogen fertilizer in the late stage, plus the expansion of direct-seeded rice, machine-transplanted rice and other cultivation areas, the rice growth period is delayed...
-
Which pesticide is effective for controlling the rice stem borer (Chilo suppressalis)?
What pesticide should be used to control the rice stem borer? Please advise. Common control agents for the rice stem borer include 25% Actara water-dispersible granules, 5% Regent suspension concentrate, 20% Haonianidong emulsifiable concentrate, 50% fenitrothion emulsifiable concentrate, Nongjiale emulsion, 5% Shachongshuang granules, 80%...
-
What should be noted when controlling the rice leaf roller (Cnaphalocrocis medinalis) in rice?
What should be noted when controlling the rice leaf roller in rice? Please give guidance. To control the rice leaf roller, you must first know the timing of control. The control timing is determined comprehensively through the development progress of the insect stages and the fluctuation dynamics of adults under light traps, with reference to the stage duration table and in combination with short- and medium-term weather forecasts. To ensure a true grasp...
-
Rice Pest and Disease Control: What to Do When Rice Has Difficulty Heading?
What should be done when rice has difficulty heading? What causes difficulty in heading in rice? Please provide guidance. Causes of difficulty in heading in rice: When rice has difficulty heading, or shows the "neck-enclosed" phenomenon, the grains enclosed within the leaf sheath generally become empty or shriveled grains because they cannot emerge in time to pollinate and fertilize, which has a major impact on yield....
-
What pesticide is effective for controlling rice bacterial leaf blight?
What pesticide is good for rice bacterial leaf blight? What harm does rice bacterial leaf blight cause? What are the causes of rice bacterial leaf blight? Please give an introduction. Bacterial leaf blight is one of the major diseases of rice. Once it occurs, it can generally reduce yield by 10%, and in severe cases by 50-60%. Therefore, strengthening the control of bacterial leaf blight is very important...
条件筛选