Rice seedlings misusing wheat will die

Yu Yinxian, Wang Yinmin of Shandong Province, said on June 2 that on June 1st, he mistakenly sprayed 15% of methacrylate WP in 60 grams of water and 15 kg of water into a 0.7-acre rice paddy field. The seedlings were at 4 when sprayed. Leaf 1 heart period. He asked whether it would be useless to spray 0.136% erythrosene ethyl cloud wettable powder on rice seedlings that had been sprayed by mistake. If it is useless, it can be used to seed rice.

It is understood that Makita 15% clodinafop-propofol WP is registered for use in wheat fields to control part of the grass weeds, for the recommended dosage of 45~67.5 grams per hectare for pure weeds in winter wheat fields, equivalent to 20~30 per mu of preparations Grams. The drug is post-emergence stem and leaf treatment agent, the drug can be quickly absorbed by the weeds after application, and the efficacy is fast. The weeds stop growing 48 hours after application.

An expert from Swiss Syngenta Crop Protection Co., Ltd. said in an interview with the reporter that clodinafop-propargyl is not safe for use in paddy field and will cause serious phytotoxicity after application. It will lead to 10 grams per acre in rice seedling stage. The plant died. The above-mentioned Wang Yinmin reports that in the 4 leaf 1 heart stage of rice seedlings, 15% clodinafop-propofol wettable powder 60 g water and 15 kg water spray 0.7 mu, the dosage is much higher than the recommended dosage of wheat fields, higher than the lethal dose of rice seedlings. , will cause rice seedlings to die. Experts also reminded that a field that misuses 15% of methacrylate WP can no longer be used to raise rice seedlings, and should be replaced with seedlings, otherwise rice seedlings will suffer phytotoxicity.

After rice seedlings are harmed by some kinds of herbicides, spray-protecting 0.136% of Radix Astragali WP can relieve symptoms of phytotoxicity to a certain extent, and reduce damage caused by phytotoxicity. Spraying large doses of clodinafop-propargyl esters on rice bran after spraying Biqing 0.136% erythrosene Yiyun WP should be of no avail. In the absence of rice seedlings available, it is a good remedy to use suitable live rice varieties live. After the direct seeding of wheat in Yutai and other places in Shandong Province, early-maturing medium-japonica rice varieties should be selected and planted and managed at the appropriate time under the guidance of local agricultural technicians.

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