Insecticide, fungicide, acaricide, herbicide characteristics summary
Insecticide Methomyl has 10-100 times higher insecticidal, acaricidal and nematicidal activity than avermectin, with a wider insecticidal spectrum; stomach toxicity is the main effect and touch; irreversible paralysis of pests, stopping feeding, and death only after 2-4 days, with a slower insecticidal speed; long duration of action, 10-15 days for pests and 15-25 days for mites. No endosmosis to crops, but can penetrate into epidermal tissues; very active against Lepidoptera, mites, Coleoptera and Homoptera, and thrips, and not easily resistant to pests; easily degraded in soil; in protected areas or 10 times the recommended dose for all
1.Occurrence symptoms cucumber powdery mildew early onset, the lower leaves front or back appear white small powder spot, and then expand to round powder spot. Under suitable conditions, white powdery spots continue to expand, connected into a piece, become the edge of a large untidy white powder area, and covered the entire leaf, like a layer of white hair, so commonly known as the white problem. The late onset of the disease white hair into gray and white hair, the whole leaf was yellow-brown dry. 2. Prevention and control methods 2.1 choose disease-resistant varieties. 2.2 Seed disinfection: use 1% anti-kukunin suspension 20ml plus 10kg of water to dip the seeds for 1h, eradicate the powdery mildew bacteria on the seeds with. 2.3 Cultivation
Reasons why elements in the soil cannot be absorbed
The element was originally contained in the soil, but for various reasons the plant could not absorb it. The details are as follows: i. Drought: When there is no water, the element cannot become soluble or ionic state, and the roots cannot absorb it. Therefore, deficiency mostly occurs in dry years or dry seasons. Second, soil reaction (ph) discomfort: soil reaction strongly affects the solubility of nutrients, i.e., effectiveness. Some elements are easily soluble under acidic conditions, with high effectiveness and validity, and the solubility - effectiveness decreases when the reaction tends to be neutral or alkaline. Other elements are the opposite, with high effectiveness under alkaline conditions and low effectiveness under acidic conditions. With the reaction
The village chief and small Shen Yang Kan rice rotten seedlings
"That night, I hurt ......" the village chief Xiaoli hummed a tune, squatting under the tree to watch the ants on. The village chief usually walks his dog, teases the sheep, brags about the cattle, kanshan outside, most love to see the ants on the tree. The mayor blew hard at the trunk of the tree and the busy ants were blown to the ground. The ants moved their tentacles and continued to climb up the tree. The mayor often blew down the tree more than once a morning, and of course the ants climbed up the tree the same way. The mayor's heart sighs: "Ants are really persistent creatures. "The village chief, the village chief," the village chief heard the voice raised his head and saw Dasan panting and flying; "something big happened." "What's wrong?
Difference between bacterial diseases, fungal diseases and viral diseases
1, fungal diseases Diseases caused by fungi can show spots, wilting, deformities and other disease symptoms. But bacterial diseases can also cause the same symptoms, the difference is mainly in the fungal diseases in the onset of the site can see spidery or flocculent mycelium, some have nuclei and other mycelium metamorphosis. In the onset of the site surface growth of a variety of mold, which is an important feature to identify fungal diseases. All fungal diseases, no matter what part of the occurrence, symptom performance, in wet conditions have mycelium, spores produced. This is the main basis for determining fungal diseases. For example, cucumber powdery mildew, the leaf spots appear white
The disease is commonly known as "flower foot stalks" Why do you have this name, is that once you get this disease you look at the rice foot stalks are flowered. This disease is caused by a fungus, so call him rice foot disease, and human foot fungus foot fungus seems to be caused by the same fungus. This disease is one of the three major diseases of rice, in recent years, due to the reform of rice cultivation, as well as cultivation calendar level and the amount of fertilizer, this disease is becoming increasingly serious, the general onset of early rice heavier than single-season late rice and post-season rice, the lighter the impact of grain filling (what is filling, that is, when you are still embryonic need to absorb a lot of nutrients, filling is the plant fertilization embryonic period) This disease causes the plant to wither and collapse, can not draw spike, or The spike does not bear fruit, serious field yield can be reduced by more than fifty percent, remember not 10%, not two percent, but fifty percent Oh.
The rice plague disease alias fire plague, plague, plague also, the horror, not yet Ebola horror. This disease is also one of the three friends of rice diseases, just like the three friends of plum, orchid and chrysanthemum. The degree of harm caused by this disease varies depending on the variety of rice, cultivation techniques as well as climatic conditions, and this phrase is usually said by experts to run train words. Xiao Li parrots the words a little. This disease epidemic year rice yield reduction of 10% to 15% in general, heavy up to 30% to 50%. Horror, right? Early indica rice has less incidence, (indica rice is the basic type of rice, generally grown at low altitudes and in hot and humid areas.) Late rice incidence more, especially japonica, glutinous rice more prone to disease, along the river, coastal areas perennial occurrence of serious, often causing serious harm (japonica rice is a rice variant, planted at high altitudes, intolerant of high temperatures, glutinous rice is the glutinous rice wine we drink, the boss to two cups of that)
Sing a song with you, please listen to it for me. The bell and drums are not expensive, but I hope that long drunkenness does not wake up, the ancient sages are lonely, but there are drinkers to stay its name. Ha ha, you heard it right is Li Bai, but today the village chief Xiaoli not Kan Li Bai nor Kan Du Fu, only Kan Kan we Road Qu disease. Because there is a Qu word, suddenly remembered the old grandfather Li Bai, incidentally, to remember him, is not also seem us a little sentiment. Back to the topic, rice qu disease, also known as false black disease, green black disease, green powder disease and so on. This disease usually occurs on late rice, glutinous rice and hybrid japonica rice incidence is higher than other varieties, we hear the hybrid is not to think of foreigners, yes this disease is really the introduction of new varieties before the big release, so the foreign moon is not necessarily round Oh. Rice is mostly susceptible to the disease at the spike and flowering stage, forming a spike disease, and depending on the variety, climatic conditions and fertilizer management and other conditions, there are significant differences in the degree of incidence between rice fields, thus affecting the yield. In some years, the disease occurs severely on individual varieties, with a serious incidence of up to 60% or more, with 1~5 grains per spike, and up to 20~30 grains per spike resulting in large yield losses. This disease is a fungal disease, mostly occurring in good years of rice harvest, farmers mistakenly believe that it is a sign of a good year, so there is a "harvest fruit" commonly known.
Court judicial service economic construction and then a new chapter --- High-tech court to guide the bankruptcy enterprise restructuring to help it back to life!
On the morning of September 20, 2016, Zhengzhou High and New District Court held a press conference to inform about the successful restructuring of the bankruptcy case of Henan Dadi Agrochemical Co. The case is the first bankruptcy case in Henan Province that successfully achieved substantive restructuring of the enterprise, which is significant. The press conference was attended by representatives of the bankruptcy case manager, creditors, strategic investors, enterprise employees and more than ten media representatives including Henan TV, Henan Daily, Henan Legal News, Dahe Daily, Henan Business News and Zhengzhou TV.
Kaifeng Dadi Agrochemical Biotechnology Co., Ltd.
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Copyright © Kaifeng Dadi Agrochemical Biotechnology Co., Ltd.
Powered by www.300.cn Business license SEO
This website supports IPV6