Pharmaceutical treatment of rice seeds is the only effective measure to control bastard disease, dry-needle nematode disease and other species-borne diseases. Once the disease has no good agent control. After the recent years of chemical treatment of rice seeds, rice bakanae disease and dry-needle nematode disease have been controlled in our district. However, last year, the field where pesticide treatment was not in place still showed varying degrees of disease, and a few serious diseased plants The rate of up to 20%, seriously affecting rice yield. To this end, Wang towns and sub-district offices reminded the majority of peasant friends that they must remember the lessons of previous years, fully carry out the propaganda and mobilization of seed pharmaceutical treatment, overcome the thought of being lax and paralyzed, and choose the right medicine. In order to effectively control the pests of species transmission, resolutely eliminate dry seed sowing. First, drug treatment methods and time 1. Rice transplanting methods such as soaking seedling transplanting and throwing rice, etc. The varieties with high bacterial rates and heavy diseases such as Yanjing 13 must be soaked with pesticides. 25% cyanogenin suspension (brightly) 3 g + 6% killing Dan water 4 ml plus water 7-8 kg stir, immerse rice seeds 4-5 kg, cover 48-60 hours light immersion. 2, seed dressing dry straight (sets) sowing seeds with dry seeds, sowing can not be promptly drowning after the use of pesticide seed dressing. 25% cyanoxime suspension (brightly) 3 g +6% killing water 4 ml plus top seedling 5 ml (disease-preventive strong seedling effect) plus 1 kg of water, mixed with 10 kg of rice, Heap stuffy for 1-2 hours until the liquid is soaked and sowed. Second, the matters needing attention 1. Bacillus disease has produced strong resistance to prochloraz. It is recommended that the majority of farmers' friends do not use dichlorm and solubilizing agents, and use 25% cyanoxime (bright) chemicals to soak or seed in order to Ensure effectiveness. 2. Insist on reconstituting soaking or seed dressing with Ascaris pine to control the damage of Aphelenchoides 3, strictly control the concentration of seed treatment, to prevent the impact of germination and disease control effect. 4. Two-dilution method must be used for soaking, and the liquid should be prepared first and then put into seed. The length of soaking time is determined by the temperature at the time of soaking. When the temperature is high, the time can be appropriately shortened. When the temperature is low, the time is appropriately extended. 5, seed treatment should be carried out at room temperature, shall not take any heating means, do not rinse with water after treatment, so as not to reduce the efficacy.
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Rice seed chemical treatment technical advice