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A specific drug for rice leaf rollers and heart worms.
In the process of rice planting, there are often some diseases and insect pests. Leaf rollers and drillworms are two of the most harmful pests. What are the specific drugs of rice leaf rollers and heart worms? I. the specific drug of rice leaf rollers, the control of rice leaf rollers.
2020-11-08 Rice roll leaf worm drillworm of specific medicine rice planting -
The nemesis of rice disease-- 12% rice power
12% rice power EC (12% green copper EC for rice) is a special fungicide for rice. According to the large-scale demonstration and popularization in Hunan, Hubei, Guangxi, Zhejiang and other major rice producing areas, it has a good control effect on many kinds of fungal and bacterial diseases, such as rice bacterial leaf spot, bacterial leaf blight, rice false smut, rice blast and so on, especially for bacterial leaf streak. the effect is significant. Rice power is a low toxic pesticide, which can be degraded rapidly under natural conditions, has no residue, no pollution, and is safe to human, animal and environment.
2019-01-16 -
Simple diagnosis and Control of "withered Heart" in Rice
1. Simple diagnosis of rice "withered heart" 1. A "withered heart" caused by pests. Chilo suppressalis, Chilo suppressalis and mole cricket can all cause "withered heart". The main differences are as follows: (1) Chilo suppressalis: large wormhole, many insect feces, and feces are generally arranged between rice leaf sheath and stem. The stem, leaf sheath and leaves of the killed rice turned yellow. The harm is more serious at the edge of the rice field and lighter in the middle of the field. (2) Chilo suppressalis: after hatching, the young borer first gathered on the inside of the rice leaf sheath to feed, and water-stained macula appeared on the outside of the damaged leaf sheath, and then gradually yellowed.
2019-01-16 -
What drugs can control rice leaf rollers?
What harm does rice leaf roller have? What drugs can control rice leaf rollers? Please give an introduction to the cultivation network collated rice leaf roller harm and chemical control methods, listed below for users to refer to. The harm of rice leaf roller: rice leaf roller, also known as rice leaf roller, commonly known as scraping green insect...
2018-07-11 -
Occurrence and Control of withered Heart Disease in Rice
Key points of cultivation techniques for dry raising rice seedlings 1. Applying sufficient base fertilizer: combined with deep ploughing or irrigation level fields, 30-40 kg ammonium bicarbonate and 20-25 kg calcium per mu are applied as medium fertilizer at one time, and the former broad bean field should be used more. Vegetable or potato fields should be less. Second, insert thinly at the right time.
2018-09-12 -
Introduction of Upland Rice varieties in North China
Upland rice is also called upland rice. An ecotype crop formed by the long-term domestication and evolution of rice in dry land without water layer. Planting upland rice is divided into spring sowing and summer sowing, spring sowing can be carried out from mid-April to mid-May, and mid-May is suitable. It is appropriate to sow in summer before June 15.
2020-11-27 North upland rice variety introduction also known as upland rice. -
How to control rice leafminer?
Growing rice this year, we found that there are a large number of leaf miners in the field. What are the hazards of rice leaf miners? How to control rice leafminer? Ask netizens to help introduce and guide the methods to control the harm of rice leaf miner and the control methods in the following detailed introduction and control methods for the majority of netizens' reference. Hidden leaves of rice.
2018-07-18 -
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 -
Rice blast affects rice quality how to control rice blast
Rice blast affects rice quality how to control rice blast
2018-07-14 -
2016 what are the key points for the prevention and control of major diseases and insect pests
2016 what are the key points for the prevention and control of major diseases and insect pests
2019-02-21 -
Rice diseases and insect pests: how to control common rice diseases and insect pests?
How to control common rice diseases and insect pests? Please introduce and guide how to control common rice diseases and insect pests: Rice thrips, leaf rollers (rice bracts), rice leaf borer, rice planthopper. Detailed control methods can be referred to the following methods: first, rice thrips rice thrips are very small, adults are dark brown, winged, crawling.
2018-07-18 -
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 -
How to control bacterial leaf streak of rice?
What are the hazards of rice bacterial leaf streak? What method can be used to prevent and cure it? Also ask experienced netizens to help introduce the harm and control methods of rice bacterial leaf streak in the farming network, which are listed below for netizens' reference. The harm of bacterial leaf spot in rice: at the beginning of rice disease.
2018-07-17 -
How to control diseases and insect pests in rice?
How to control rice diseases and insect pests? What technology can learn from rice pest control methods: first, rice black sclerotia stem rot rice stem base of a fungal disease, also known as rice stem rot or micrococcosis. The pathogens are Aspergillus globulus and Aspergillus oryzae. Have a disposition.
2018-09-09 -
Rice dwarf disease
The symptoms were mainly distributed in the southern rice area. Also known as rice common dwarf disease, general dwarf, green dwarf and so on. After the rice was susceptible from seedling stage to tillering stage, the plant was dwarfed, the tillers increased, the leaves were thick green and stiff, and the diseased rice could not heading and fruiting in the later growth stage. The symptoms of diseased leaves can be divided into two types. The white spot type appeared dotted yellow-white spots parallel to the leaf vein on the leaf blade or on the leaf sheath, especially at the base. Dots appeared in the new leaves above the initial diseased leaves, but not in the following old leaves. In the twisted type, the extraction of the heart lobe is distorted in the case of lack of light.
2019-01-16 -
The latest course of techniques and methods for the control of rice leaf roller
Rice leaf roller (Chilo suppressalis medinalis) is one of the main pests in rice producing areas in China, which is widely distributed in various rice areas. Besides harming rice, it can also feed on barley, wheat, sugar cane, millet and other crops as well as paspalum, paspalum,
2020-11-10 The latest rice roll leaf borer control techniques methods tutorials -
How to know the situation of rice seedlings after transplanting rice seedlings
How to know the situation of rice seedlings after rice transplanting? Please introduce the situation of rice seedlings from the following points: first, leaf diagnosis. The green of rice leaves is dark, which shows that the nutrition is rich, the nitrogen content is high, the leaf color is uniform, and the leaves can be straight is the performance of healthy seedlings. Otherwise, it will be fertilized to make the seedlings strong. Second, root diagnosis. Rice.
2018-07-19 -
Specific drug for rice bacterial blight
Rice bacterial blight (Xanthomonas oryzae) is a major disease of rice, which affects the yield of rice very much. What are the specific drugs for rice bacterial blight? 1. The specific drug of rice bacterial blight can use thiazolyl zinc, thiamidone, thiobacillus copper and basic sulfur.
2020-11-08 Rice white leaf blight disease specific medicine rice yes. -
What pesticides are effective against rice leaf roller?
What pesticides are effective against rice leaf roller? Please introduce the rice leaf roller, also known as rice leaf roller, commonly known as scraping green worm, white leaf worm, leafworm, etc., which are the main pests in the growing period of rice. The pest harms rice with larvae, affixes leaves into longitudinal buds, hides and gnaws on upper epidermis and mesophyll.
2018-07-18 -
The latest control measures of leaf tip blight in the process of rice planting
Rice leaf tip blight is also called rice leaf tip bacterial blight. It is mainly harmful to the leaves, the disease begins to occur at the leaf tip or leaf edge, and then extends downward along the leaf edge or middle, forming stripes. The disease spot is dark green at first, gradually changes to grayish brown, and finally withered. There is a brown strip at the junction of illness and health.
2020-11-10 Latest rice planting process middle leaf sharp blight disease control measures