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首页> 外文期刊>Turkish Journal of Agriculture & Forestry >The Effects of Different Irrigation Systems on the Inundative Release of Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) against Ostrinia nubilalis Hubner (Lepidoptera: Pyralidae) in the Second Crop Maize
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The Effects of Different Irrigation Systems on the Inundative Release of Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) against Ostrinia nubilalis Hubner (Lepidoptera: Pyralidae) in the Second Crop Maize

机译：不同灌溉系统对第二季作物玉米中黑穗病菌（膜翅目：Trichogrammatidae）对玉米Ost（鳞翅目：Pyralidae）的过量释放的影响

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This study was conducted to determine the effects of different irrigation systems on the inundative release of the egg parasitoid Trichogramma evanescens Westwood (Hymenoptera: Trichogrammatidae) against Ostrinia nubilalis Hubner (Lepidoptera: Pyralidae) in the second crop maize in the ?ukurova region of Turkey in 1999 and 2000. O. nubilalis, Ephestia kuehniella Zeller (Lepidoptera: Pyralidae) and T. evanescens were reared in a climatic room under constant temperature of 25 ± 1 oC, relative humidity of 65 ± 10%, and an appropriate light regime (16:8 LD). Trichogramma evanescens was applied twice at a rate of 75,000 parasitoid ha-1 at 10-day intervals at the beginning of the oviposition period of the third generation of O. nubilalis in the second crop maize. Irrigation was an important factor for the effectiveness of T. evanescens and significant differences between the 2 irrigation systems tested were observed. The efficiency of T. evanescens was higher under flood irrigation than sprinkler irrigation conditions. Egg parasitism was 81.0% and 84.3% with flood irrigation, and 66.3% and 69.2% with sprinkler irrigation in 1999 and 2000, respectively. The reduction rate of infested plants with O. nubilalis was 80.0% and 88.3% with flood irrigation, and 60.7% and 68.9% with sprinkler irrigation in 1999 and 2000, respectively. Yield increased approximately 1500-2000 kg ha-1 under flood irrigation as compared to sprinkler irrigation.
机译：进行这项研究的目的是确定不同灌溉系统对土耳其乌库罗瓦地区第二种玉米中卵寄生性寄生卵西边线虫（膜翅目：Trichogrammatidae）对玉米Ost（鳞翅目：Pyralidae）的过剩释放的影响。 1999年和2000年。将O. nubilalis，Ephestia kuehniella Zeller（鳞翅目：Pyralidae）和EVA T. evanescens在气候室中于25±1 oC的恒温，65±10％的相对湿度和适当的光照条件下饲养（16 ：8 LD）。在第二季玉米中，第三代O. nubilalis的排卵期开始时，以10天的间隔，以75,000副寄生虫ha-1的速率两次施用了赤眼蜂。灌溉是影响棉铃虫有效性的重要因素，并且观察到两个测试灌溉系统之间存在显着差异。在洪水灌溉下，T。evanescens的效率高于喷灌条件。在1999年和2000年，洪水灌溉时卵的寄生率分别为81.0％和84.3％，洒水灌溉时分别为66.3％和69.2％。在1999年和2000年，洪水灌溉减少了对O. nubilalis侵染植物的减少率，喷洒灌溉减少了60.7％和68.9％。与喷灌相比，洪水灌溉的产量增加了约1500-2000 kg ha-1。

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