In order to screen the new rice seed treatment formula, researchers from the Academy of Agricultural Sciences of Zhenjiang City, Jiangsu Province carried out indoor virulence determination and field plot test of 20% prochloraz & thiazolyl and tebuconazole suspension.
The results of combined virulence test showed that when the ratio of prochloraz and tebuconazole was 2:1, the inhibition of mycelial growth of rice seedling pathogen was synergistic. The LC50 value of thiazophos to rice stem nematodes was 50.3513 mg/L. Field trial results showed that 20% prochlorazin, thiazolyl and tebuconazole suspensions were soaked in 400-100 mg/L or 1:250 seed dressing, which had good control against rice seedling disease and dry-point nematode disease. effect.
In summary, 20% prochloraz, thiazolyl and tebuconazole suspending agent can be used as a novel seed treatment agent to control rice seedling diseases.
By the end of July 2018, there were 9 kinds of registered crops of thiazophos in China, namely tomato, cucumber, potato, watermelon, pepper, sugar cane, banana, tobacco and Rosaceae ornamental flowers.
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