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棉铃虫

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Due to the lack of data, the parameter of forecasting emergence of regional CBW is built by the traditional phenological model. With the standard of this, model parameter of forecasting occurrence of regional cotton bollworm is applied.

由于数据缺乏,采用传统有效积温的方法,建立了区域性棉铃虫羽化预测的参数,以此为标准,建立区域性棉铃虫发生期预测的模型参数。

Cotton bollwormis a polyandrous insect, and it can carry out the seconcd mating after 1d post-first-mating, and the loss substance in MAG can be compoletely supplemented with24-36hrs after mating.

棉铃虫虫是一种多次交配的昆虫,雄蛾交配后一天即可进行二次交配,交配后的棉铃虫雄蛾MAG腔内损失的物质只需24-36小时即可补充完毕。

Armigera BBMV, on the contrary few membrane proteins can be got by dissoluted in M. separata BBMV, and the concentration of membrane protein in M. separata BBMV is lower than in H.

棉铃虫中肠BBMV解离后得到许多可溶性膜蛋白,相比较粘虫中肠BBMV解离后得到的可溶性膜蛋白条带较少,并且粘虫中肠BBMV可溶性膜蛋白的含量明显低于棉铃虫

Armigera and M. separata mid-gut juice, but, other less than 60kD proteins also can be got by M. separata mid-gut juice .4 Many Bt Cry1AcE toxins can be got by the method of precipitate and resolve, which have high purity.

在相同的时间下,粘虫中肠消化液蛋白酶活性比棉铃虫中肠消化液要高;在37℃条件下,棉铃虫中肠消化液经过30和60min将130kD的Bt CrylAc原毒素酶解为60kD的毒素,而粘虫中肠消化液经过30和60min对Bt CrylAc原毒素酶解作用,除得到60kD的毒素外还得到了40kD和分子量更小的蛋白。

Predacious and parasitic natural enemies had strong conjoint control effect to both second and third generation, therefore considerably reduced the population trend indices of cotton bollworm.

用目测法研究了转Bt基因抗虫棉对棉铃虫的控制效率,结果表明转Bt基因抗虫棉对棉铃虫有很高防效。

The biological character of the cotton bollworm suggested that it had 3 generations a year, and hibernates with pupa, its larva did harm to the browse, group top, top, tip, flower and boll, the harmful period was about 70 days.

棉田棉铃虫的生物学特性结果表明:棉铃虫在棉田一年发生三代,以蛹越冬,越冬代成虫始见期6月19日,9月中下旬老熟幼虫落入土中化蛹越冬。

The temperature ofApril to June is the main effective element on overwinter generation, the first generation occurrence andthe second generation laving pened. In those you of which this period has high temperature, helicoverpa-armigera occurs earlier.

棉铃虫大发生有诸多原因,但气候条件是影响其消长的主要因子之一。70年代末,外省有人曾研究过气象要素对棉铃虫发生的影响【门,我省这方面研究报道较少。

The effect of BPBB on the reproductive behaviors of CBW: The effect of BPBB and its odor on hiding place, ovipositing place, mating rate and eggs number of CBW have been studied in artificial climate box.

棉铃虫生殖行为的影响在人工气候箱中研究了黑杨萎蔫叶枝及其气味对棉铃虫成虫的隐藏部位、产卵部位及交配率和产卵量等的影响。

There was no impact on cotton aphid and ALB by Bt-cotton, but the ingesting sap behavior in pholem and the intrinsic rate of increase of the aphids fed on transgenic Bt CpTI cotton decreased significantly.

同时,田间棉铃虫上灯蛾的FA值与Bt棉的种植年代间存在着显著的负相关,显示出棉铃虫自然种群对Bt棉的适应性随着Bt棉种植时间延长而渐增的趋势。

137 Crude protein also has effect on controlling the growth of cotton aphid, cotton bollworm, striped rice borer, and the crude protein deposited with 25 percent ammonium sulfate has the most significant effect on controlling cotton bollworm and cotton aphid.

88—137粗提蛋白质对棉蚜、棉铃虫、二化螟的生长发育也有一定抑制作用,其中用25%硫酸铵沉淀的粗提蛋白质抑制棉铃虫、棉蚜作用最明显。

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