当前位置: 首页 > 文章 > 灭幼脲类及昆虫保幼激素类似物对玉米螟卵的生物活性 植物保护学报 1982 (1) 35-40
Position: Home > Articles > DETERMINATION ON THE ACTIVITY OF THE CHITIN SYNTHESIS INHIBITORS AND THE JUVENILE HORMONE ANALOGUES AGAINST EGGS OF THE ASIATIC CORN BORER,OSTRINIA FURNACALIS GUENEE Journal of Plant Protection 1982 (1) 35-40

灭幼脲类及昆虫保幼激素类似物对玉米螟卵的生物活性

作  者:
陈沛;弓惠芬;王瑞;连梅力
摘  要:
室内以浸渍法测定了灭幼脲类两个品种和昆虫保幼激素类似物五个品种对玉米螟卵的生物活性。证明:TH6040杀卵效力十分显著。浓度25ppm,可使0.5日龄螟卵半数不能孵化;50ppm孵化率降低97.9%;100ppm螟卵完全受到抑制。对3.5日龄的螟卵,虽不能阻止孵化,但能引起部分幼虫的死亡。与西维因混用则可使发育前期及发育后期的螟卵都能得到控制。ZR—777、ZR—515及734—Ⅱ对前期卵也有杀卵作用,但需要浓度过高,尚不符合应用上的要求。田间试验进一步证明:喷洒TH6040与西维因混合液,对玉米螟有显著的杀卵效果。故TH6040在诱集田做为杀卵剂应用是很有希望的。
译  名:
DETERMINATION ON THE ACTIVITY OF THE CHITIN SYNTHESIS INHIBITORS AND THE JUVENILE HORMONE ANALOGUES AGAINST EGGS OF THE ASIATIC CORN BORER,OSTRINIA FURNACALIS GUENEE
作  者:
Chen Pei Gong Huifen Wang Rui Lian Meili(Institute of Plant Protection,Shanxi Academy of Agricultural Sciences)
摘  要:
The chitin synthesis inhibitors,TH6040 [1—(4—chlorophenyl)—3—(2,6-difluorobenzoyl)urea],and the juvenile hormone analogues ZR—777,ZR-515 and 734-Ⅱ,prevented hatch of the eggs of the Asiatic corn borer.When egg masses were dipped in acetone:water(3:1) test solutions for 1 minute at a dosage of 50ppm of TH6040,the percentage of hatch of 0.5-day-old eggs was reduced by 97.9%.However,3.5-day-oldeggs were insensitive to TH6040.Thus,TH6040 must mix with Sevinfor inhibiting egg hatch for all egg stages.The use of chitin sythesisinhibitors,TH6040,as ovicid es in controlling the Asiatic corn borer isprove to be feasible.

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