Avermectins are macrocyclic lactones produced by Streptomyces avermitilis. Their antihelminthic potency is currently utilized in agriculture on endo- and ecto-parasites (Ivermectin) on domestic animals and as an insecticide and miticide (Abamectin) onplants. To date, no LD50 values or recovery after exposure to Abamectin is available for the plant-parasitic nematodes Meloidogyne incognita or Rotylenchulus reniformis. Using an assay of nematode mobility, LD50 values of 1.56 ug/ml and 32.9 ug/ml werecalculated based on 2 hr exposure for M. incognita and R. reniformis, respectively. The pesticide carrier had no effect on mortality of either nematode. There was no recovery for either nematode after being exposed to Abamectin for 1 hr. M. incognita mortality rate continued to climb, whereas R. reniformis mortality rate remained unchanged 2 hr after the nematodes were rinsed and removed from the Abamectin solution.
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机译：Avermectins是由Streptomyces Avermitilis生产的宏环内酯。他们的抗喉症效力目前用于国内动物的Enco-和Ecto-parasites（Ivermectin）和作为杀虫剂和杀螨剂（Abamectin）插物的农业。迄今为止，没有LD50值或接触Aphamect蛋白的恢复可用于植物 - 寄生线虫Meloidogyne Incognita或Rosynumulululy eniformis。使用线虫迁移率的测定，LD50值为1.56 ug / ml和32.9ug / ml，基于2小时的2小时暴露，分别为M.Incognita和R. reniformis。农药载体对线虫的死亡率没有影响。在暴露于Aphamect 1小时后，Nematode没有恢复。 M. incognita死亡率持续攀升，而R.Reniformis死亡率在冲洗线虫并从Abamectin溶液中除去后2小时保持不变。
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