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恶草灵(Oxadiazon,Ronstar)系法国罗纳—普朗克化工公司1969年发展的优良除草剂,适于稻田初期或中期除草。其有效成份为2-特丁基-4(2,4-二氯-5-异丙氧苯基)-5-1,3,4-噁二唑啉;纯品白色固体;动物毒性很低,大鼠急性口服和经皮LD_(50)>8000毫克/公斤。大鼠和犬每日饲喂25毫克/公斤,无不良影响。属于高效、低毒、低残留长效除草剂。加工剂型有12％乳油、25％乳油和2％颗粒剂。此药主要特点是用药量极少,每亩使用有效成份30克左右,持效期可达50天,一次用药,解决全期草害,其12％乳油瓶装剂型可直接洒入田面水层中,能迅速扩散均匀分布,也可混拌耕层,以药土或颗粒剂撒入稻田,使用方法简便。它具有良好的触杀作用,由于它水溶性低,其持效期
Oxadiazon (Ronstar) is an excellent herbicide developed in 1969 by Rhône-Planck Chemical Company in France. It is suitable for the early or mid-season weed control. The active ingredient is 2-tert-butyl-4 (2,4-dichloro-5-isopropoxyphenyl) -5-1,3,4-oxadiazoline; pure white solid; animal toxicity is very low Rat acute oral and transdermal LD 50 (50)> 8000 mg / kg. Rat and dog daily feeding 25 mg / kg, no adverse effects. Is efficient, low toxicity, low residual long-acting herbicides. Processing formulations are 12% EC, 25% EC and 2% granules. The main features of this medicine is the dosage is very small, about 30 grams of active ingredients per acre, the persistence of up to 50 days, a medication to solve the entire period of grass damage, the 12% cream bottle formulations can be sprinkled directly into the field surface water , Can quickly spread evenly distributed, can also be mixed with tillage, soil or granules sprinkle rice fields, the use of simple methods. It has a good contact effect, due to its low water solubility, its persistence