Antipersonnel force of four types of high penetrating insecticides controlling against the larvae of cotton bollworm was tested in laboratory. 用高渗酮增效的四种不同的高渗农药制剂在室内对棉铃虫幼虫的杀伤力进行了试验。
And while insecticide use has decreased since the introduction of Bt cotton, a new insect mirid has gradually replaced bollworm to become the main cotton pest. 由于Bt棉对棉花和相邻作物起到保护作用,显著降低了杀虫剂的大面积使用,一种新的病虫&盲蝽蟓逐渐演化上升成为棉田的主要害虫。
⑶ Antenna olfaction of Oriental tobacco budworm was more sensitive than cotton bollworm in host selection. 由此证明,烟青虫的触角嗅觉在寄主选择中起的作用比棉铃虫的更重要,也更专化。
However, farmers have started to resent the refuges because they also allow the bollworm to persist& costing them millions of dollars annually in crop losses and insecticide sprays. 然而,农民已经开始对避难所感到愤怒,因为它们也会让这种棉红铃虫持续存在下去&每年农作物的损失和喷洒杀虫剂让他们花费了数以百万计的美元。
The effects of γ-rays irradiation on the mating ability and flight capability of male cotton bollworm Helicoverpa armigera were studied in laboratory and field cages. 研究了不同剂量辐照对棉铃虫雄虫生理状态和繁殖能力的影响。
Last october, scientists field-tested a cotton pest called the pink bollworm moth, carrying a test gene for a glowing jellyfish protein. 去年10月科学家对一种叫红棉铃虫蛾的棉花害虫做了野外试验,它带有一个发光的水母蛋白测试基因。
Based on the demographic parameters of life table of the cotton bollworm, Helicoverpa armigera ( H ü bner), its population dynamics was simulated using Markov chain Monte Carlo method. 依据对棉铃虫自然种群生命表研究所获得的种群统计参数,采用蒙特卡罗方法,模拟了随机环境条件下的棉铃虫种群发生动态。
These results suggest that both Mixed-function oxidase and esterase play an important role in cotton bollworm resistance to monocrotophos. 据此认为,多功能氧化酶和羧酸酯酶代谢作用的增强是棉铃虫对久效磷产生抗性的原因之一。
An important commercial viral pesticide is marketed under the trade name Elcar for control of the cotton bollworm Heliothis zea. 一种重要商品病毒杀虫剂商品名为Elcar用于抑制棉铃虫。
To prevent the spread of resistance to Bt among the bollworm, farmers are required to plant refuges of conventional cotton nearby. 为了防止对Bt的耐药性在棉红铃虫中间扩散,农民必须在附近种植常规棉花的植物避难所。
Bt cotton decreased moth density, thus leading to reduced populations of bollworm, not only on cotton but on other host crops too. Bt棉花通过杀死棉铃虫幼虫而减少了棉铃虫的总体数量,因此对其他作物也提供了保护。
This paper presents a computer simulation model for egg and larvae stages of cotton bollworm ( Heliothis armigera). 本文提出一个棉铃虫卵及幼虫阶段的计算机模拟模型。
The hydrolase and mixed function oxidase might be the important enzymes to cause the high resistance of cotton bollworm todeltamethrin. 水解酯酶和多功能氧化酶是导致棉铃虫对溴氰菊酯产生高抗性的重要酶系。
Overall the three varieties had similar yields, but farmers growing conventional cotton had to use extra insecticides to control the bollworm and other insect pests. 在总体上,三种棉花的产量相似,但是种植传统棉花的农民需要使用额外的杀虫剂控制棉铃虫和其他害虫。
Planting resistant cotton varieties, agricultural and chemical control are important measures of integrated management of cotton bollworm. 本文提出适合江西棉区推广应用的棉铃虫综合治理措施,包括种植抗虫棉、农业防治、化学防治等。
Comparative Studies on EAG Responses of Cotton Bollworm and Oriental Tobacco Budworm Adults to Plant Volatiles 棉铃虫、烟青虫对几种常见植物挥发性次生物质的触角电位反应比较
A Prediction System for Population Dynamics of Cotton Pink Bollworm Based on Knowledge Base 一个基于知识库的棉红铃虫种群动态预测系统
Studies on the biological and nutritional effects of various host leaves on the bollworm 不同寄主植物叶片对棉铃虫的生物学和营养效应比较
Some opinions on drug-resistance and comprehensive treatment of Bollworm in Dali County were put forward. 对大荔县棉铃虫抗药性及综合治理等方面提出一些见解。
Studies on the Expression Rate of Potential Fitness for Host Crops to Cotton Bollworm and Its Effect Factors 棉铃虫寄主潜在适合度表达的影响因素研究
Effects on the bollworm's development and fecundity were resulted mainly from the difference in contents of carbohydrates and protein as well as their ratio in host plants. 不同施氮量的寄主植物对棉铃虫发育与繁殖的影响是由于其体内碳水化合物和蛋白质含量的差异及两者间比例的不同所致。
The Forecasting of Cotton Bollworm's Occurrence Degree Based on Improved Neural Network Model 基于改进的神经网络模型对棉铃虫发生程度预测研究
Also clarified: "bollworm's son," is wrong, bee arrested budworm not raise as his own son, but arrangements for food for their offspring. 还弄清了:“螟蛉之子”是错误的,蜂抓青虫不是当成自己的儿子养,而是为自己的后代安排食物。
It makes its own insecticide which kills bollworm ( Helicoverpa armigera), a common cotton pest that eats the crop's product& the bolls. 它自身能产生杀灭棉铃虫(Helicoverpaarmigera)的杀虫成分。作为一种常见的棉花害虫,棉铃虫以棉花结出的棉铃为食。
Effects of Temperature Stress on Bt Insecticidal Protein Expression in Bt Transgenic Cotton Leaves and Death Rate of Cotton Bollworm 温度胁迫对转Bt基因抗虫棉毒蛋白的表达和棉铃虫死亡率的影响
The results suggested that the transgenic cotton SGK321 had control efficiency not only to the cotton bollworm, but also to some non-target pests, such as the cotton aphid and the tobacco whitefly. 研究表明,SGK321在对棉铃虫具有很好抗性的同时,对棉蚜、棉粉虱、绿盲蝽、小绿叶蝉等非靶标害虫的发生也有一定的抑制作用;
The cotton is genetically engineered to produce Bt toxin, which kills pink bollworm, a serious cotton pest. 这种棉花接受了遗传改造,从而产生能杀死棉红铃虫的Bt毒素。棉红铃虫是一种严重的棉花害虫。
Damage amount and damage loss to cotton by the various instar larvae of cotton bollworm, Helicoverpa armigera were got through inoculating larvae to cotton plant. 通过人工接虫为害,获得了棉铃虫各龄期幼虫在棉花上的为害量和为害损失。
Preliminary studies on life table of natural populations of the cotton bollworm in Northern Xinjiang 北疆棉铃虫自然种群生命表的初步研究
There were significant differences among the mortalities of the cotton bollworm under different humidities. 相对湿度发生变化时,感病棉铃虫死亡速度和死亡率明显不同。