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选用７种植物提取物，分别设置８００ｐｐｍ、４００ｐｐｍ、２００ｐｐｍ、１００ｐｐｍ、５０ｐｐｍ ５个浓度梯度，对赤拟谷盗进行试验。结果表明，对赤拟谷盗种群形成抑制效果最好的 是 ８００ｐｐｍ的桔皮提取物，抑制率为 ９３．４％；其次是 ８００ｐｐｍ的脐橙提取物，抑制率为 ８５．７％。８００ｐｐｍ的一年蓬花瓣、肉桂、艾蒿、山萘、鱼腥草提取物对赤拟谷盗种群形成抑 制率依次为７８．１％、７６．４％、７４．４％、６７．８％、５４．３％。在同种植物提取物的５个浓度梯 度中，以最高浓度８００ｐｐｍ的抑制效果最好。在试验剂量范围内，桔皮、脐橙、肉桂、山 萘、艾蒿、鱼腥草的提取物对赤拟谷盗成虫和幼虫都有不同程度的驱避作用。７种植物 提取物对赤拟谷盗成虫和幼虫均未表现明显的触杀作用。
Seven kinds of plant extracts were selected, and five concentration gradients of 800ppm, 400ppm, 200ppm, 100ppm and 50ppm were respectively set to test the plant. The results showed that 800 ppm orange peel extract had the best inhibitory rate of 93.4%, followed by 800 ppm navel orange extract with the inhibition rate of 85.7%. The inhibitory rates of 800ppm annual Puff petal, cinnamon, Artemisia, naringin and Houttuynia extract on the formation of the population of Tribolium citri were 78.1%, 76.4%, 74.4% and 67.8% , 54.3%. Among the five concentration gradients of the same plant extract, the highest inhibitory effect of 800 ppm was the best. In the experimental dose range, the orange peel, navel orange, cinnamon, naphthalene, Artemisia, Houttuynia extract on the Tribolium castaneum adults and larvae have varying degrees of repellent effect. Seven plant extracts showed no obvious contact effects on adults and larvae of Brassica parachinensis.