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为证实BPS线虫田间防治害虫的潜能和花生安全生产的可能性,进行了长尾斯氏Steinernema longicaudum BPS品系线虫防治花生田蛴螬效果及其施用技术研究。结果显示:在8个处理剂量中,以5000IJs/穴的剂量田间效果最好,花生荚果受害率(3.1%)显著低于40%甲基异柳磷对照的(9.0%)和清水对照的荚果受害率(53.2%),蛴螬减退率(95.7%)和平均产量(5941.5kg/hm2)也与40%甲基异柳磷对照的(82.7%,303.8kg)有显著差异(P<0.05);灌施效果显著好于喷施;在5000IJs/穴的剂量下,混合喷施BPS线虫和小杆线虫(4500∶500),未表现出相克、协同或加性效应。研究结果表明BPS线虫作为生物防治制剂防治花生田蛴螬具有防虫、增产双重效果。
In order to verify the potential of pest control pests in BPS nematode field and the possibility of safe peanut production, we studied the effects of Steinernema longicaudum BPS strain Nematode on peanut field galls and its application technology. The results showed that in the eight treatment doses, the best effect was obtained at the dosage of 5000 IJs / hole, the damage rate of peanut pod (3.1%) was significantly lower than that of 40% methyl isofen control (9.0%) and water control pod The damage rate (53.2%), the rate of decline of 蛴 螬 (95.7%) and the average yield (5941.5kg / hm2) were also significantly different from those of the control (82.7%, 303.8kg) The effect of irrigation was significantly better than that of spraying. BPS nematode and nematode (4500:500) were sprayed at the dose of 5000 IJs / cave, and no synergistic effect was found. The results showed that BPS nematodes as a biological control agent peanut field slugs have pest control, double effect.