Symptoms are also called eye problems. China has occurred in South China, Southwest China, and Yunnan Province. It is a devastating disease that spreads particularly quickly. The main damage leaves. At the beginning, watery spots appeared on the young leaves, and 4 to 5 days later, the vertical expansion formed an oblong lesion. The central part of the disease was reddish-brown, and there was a halo around the yellow grass. The shape resembled that of the eye, so it was called eye spot. Then a necrotic stripe parallel to the veins appeared at the top of the lesion. These strips spread to the tip of the leaf and were initially yellow grass and later turned reddish-brown. Multiple eye-spots and fringes merge, causing large dead leaves to die. Disease-resistant varieties of the heart and the tip of the disease, the whole field appeared a yellow wither, serious losses.
The pathogen Bipolaris sacchari (Butler) Shoem. said that the sugarcane flat helminthic spore is a fungus of the fungus Subgenie fungus. The synonym of Helminthosporium sacchari (Breda) Butler, Drechslera sacchari (Butler) Subram. & Jain. Conidiophore stems solitary, apex geniculate, yellow-brown. Conidia terminal, cylindrical, olive green, with 3 to 11 membranes, size 40 ~ 1149 ~ 18 (μm). The growth temperature of pathogenic bacteria is 20-32°C and the optimum temperature is 27.4-32°C. Spore formation temperature of 20 ~ 25 °C, 32 °C does not produce spores.
Transmission route and disease conditions The disease mainly damages the leaves, and the possibility of disease transmission is very small. The residual molecular spores in field sugarcane plants can flow through the leaves during the dry season. The diseased plants are more prone to wet and wet. The long duration of high humidity or even cloudy days, heavy weather conditions in the morning fog, coupled with the re-application of nitrogen fertilizer, the disease is prone to outbreaks. The same species with low levels of nitrogen fertilizer and slow plant growth had a higher incidence of nitrogen application and rapid plant growth. There were differences in disease resistance among varieties, Yuedan 57/423 and India 419 were susceptible.
Control methods (1) selection of disease-resistant varieties. Such as Yue Tang 63/237, Yacheng 67/210, Guitang 57/624, Guizhi 60/289, Cane No.4 and so on. Do not plant autumn sugarcane, and promote planting of spring sugarcane. (2) To avoid re-application of nitrogen fertilizer before or during the epidemic, proper application of potash fertilizer to prevent accumulation of water in the field and reduce moisture retention. (3) The beginning of the onset of spraying 1:1:100 times Bordeaux mixture or Kasugamycin 60 mg/kg every 667 m2. (4) Suspending of sugarcane in the sugarcane area where the disease is endemic.
Levamisole (levamisole) is a kind of broad spectrum displacement intestinal worm medicine, is mainly used to drive the worm and worm.Levamisole hydrochloride powder INDICATIONS
Antiparasitic, the product can be used to get rid of animal gastrointestinal nematodes, lung filariasis and pig dioctophymosis.
ADMINISTRATION AND DOSAGE
Calculated on levamisole hydrochloride.
Cattle, sheep, goats and pigs: 7.5mg/Kg body weight;
Dogs and cats: 10mg/Kg body weight;
Poultry: 25mg/kg body weight.
CONTRAINDICATION
Use cautiously in animals with high heartworm microfilaria burdens. Reactions are possible from heavy kill rate of microfilaria.
SPECIAL WARNINGS
Use cautiously in horse and do not use in camel.
Keep out of reach of children.
Levamisole
Levamisole Injection,Levamisole Solution,Levamisole Tablet,Levamisole Powder
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