应用地学统计学的原理和方法研究了不同时期棉蚜及龟纹瓢虫种群的空间结构和空间相关性。
The spatial construction and distribution of Aphis gossypii and Propylaca japonica at different period were investigated with geostatistics.
然而由于技术手段及研究的制约，目前尚未见适合供龟纹瓢虫规模化生产的人工饲料的报道。
The methods of Artificial Diet, Physiology, Biochemistry of Insect and Insect Ecology were used for evaluation of the optimum formala of the diets.
结论认为，桃蚜可以识别龟纹瓢虫的存在，并对其作出一定的躲避反应，从而降低被捕食的风险。
We thus conclude that the aphids have the ability to detect the presence of P. japonica and adopt initiative avoidance responses to reduce the predation risk.
以转基因棉田蚜虫喂饲的龟纹瓢虫的存活率、成蛹率显著低于以非转基因棉田蚜虫喂饲的龟纹瓢虫。
The survival rate of larvae and pupae that reared on Aphid which collected from Bt cotton field were significant lower than that reared on Aphid which collected from Non-Bt cotton field.
龟纹瓢虫propylaeajaponica是我国干旱、半干旱地区农林果蔬生产中重要的捕食性天敌之一，尤其在夏季高温、干旱的情况下，对果园、棉田的幼龄害虫和卵的捕食作用非常明显。
Propylaea japonica is one of important predatory natural enemies in arid and semi-arid area China, especially those preying on younger larvae and eggs of insect pest in orchards and cotton fields.
龟纹瓢虫propylaeajaponica是我国干旱、半干旱地区农林果蔬生产中重要的捕食性天敌之一，尤其在夏季高温、干旱的情况下，对果园、棉田的幼龄害虫和卵的捕食作用非常明显。
Propylaea japonica is one of important predatory natural enemies in arid and semi-arid area China, especially those preying on younger larvae and eggs of insect pest in orchards and cotton fields.
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